[Midnightbsd-cvs] src: zfs/sys: Enter the world of ZFS
laffer1 at midnightbsd.org
laffer1 at midnightbsd.org
Wed Oct 15 14:42:33 EDT 2008
Log Message:
-----------
Enter the world of ZFS
Added Files:
-----------
src/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/sys:
arc.h (r1.1)
bplist.h (r1.1)
dbuf.h (r1.1)
dmu.h (r1.1)
dmu_impl.h (r1.1)
dmu_objset.h (r1.1)
dmu_traverse.h (r1.1)
dmu_tx.h (r1.1)
dmu_zfetch.h (r1.1)
dnode.h (r1.1)
dsl_dataset.h (r1.1)
dsl_dir.h (r1.1)
dsl_pool.h (r1.1)
dsl_prop.h (r1.1)
dsl_synctask.h (r1.1)
metaslab.h (r1.1)
metaslab_impl.h (r1.1)
refcount.h (r1.1)
spa.h (r1.1)
spa_impl.h (r1.1)
space_map.h (r1.1)
txg.h (r1.1)
txg_impl.h (r1.1)
uberblock.h (r1.1)
uberblock_impl.h (r1.1)
unique.h (r1.1)
vdev.h (r1.1)
vdev_disk.h (r1.1)
vdev_file.h (r1.1)
vdev_impl.h (r1.1)
zap.h (r1.1)
zap_impl.h (r1.1)
zap_leaf.h (r1.1)
zfs_acl.h (r1.1)
zfs_context.h (r1.1)
zfs_ctldir.h (r1.1)
zfs_debug.h (r1.1)
zfs_dir.h (r1.1)
zfs_ioctl.h (r1.1)
zfs_rlock.h (r1.1)
zfs_vfsops.h (r1.1)
zfs_znode.h (r1.1)
zil.h (r1.1)
zil_impl.h (r1.1)
zio.h (r1.1)
zio_checksum.h (r1.1)
zio_compress.h (r1.1)
zio_impl.h (r1.1)
zvol.h (r1.1)
-------------- next part --------------
--- /dev/null
+++ sys/cddl/contrib/opensolaris/uts/common/fs/zfs/sys/zil.h
@@ -0,0 +1,276 @@
+/*
+ * CDDL HEADER START
+ *
+ * The contents of this file are subject to the terms of the
+ * Common Development and Distribution License (the "License").
+ * You may not use this file except in compliance with the License.
+ *
+ * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
+ * or http://www.opensolaris.org/os/licensing.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ *
+ * When distributing Covered Code, include this CDDL HEADER in each
+ * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
+ * If applicable, add the following below this CDDL HEADER, with the
+ * fields enclosed by brackets "[]" replaced with your own identifying
+ * information: Portions Copyright [yyyy] [name of copyright owner]
+ *
+ * CDDL HEADER END
+ */
+/*
+ * Copyright 2007 Sun Microsystems, Inc. All rights reserved.
+ * Use is subject to license terms.
+ */
+
+#ifndef _SYS_ZIL_H
+#define _SYS_ZIL_H
+
+#pragma ident "%Z%%M% %I% %E% SMI"
+
+#include <sys/types.h>
+#include <sys/spa.h>
+#include <sys/zio.h>
+#include <sys/dmu.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/*
+ * Intent log format:
+ *
+ * Each objset has its own intent log. The log header (zil_header_t)
+ * for objset N's intent log is kept in the Nth object of the SPA's
+ * intent_log objset. The log header points to a chain of log blocks,
+ * each of which contains log records (i.e., transactions) followed by
+ * a log block trailer (zil_trailer_t). The format of a log record
+ * depends on the record (or transaction) type, but all records begin
+ * with a common structure that defines the type, length, and txg.
+ */
+
+/*
+ * Intent log header - this on disk structure holds fields to manage
+ * the log. All fields are 64 bit to easily handle cross architectures.
+ */
+typedef struct zil_header {
+ uint64_t zh_claim_txg; /* txg in which log blocks were claimed */
+ uint64_t zh_replay_seq; /* highest replayed sequence number */
+ blkptr_t zh_log; /* log chain */
+ uint64_t zh_claim_seq; /* highest claimed sequence number */
+ uint64_t zh_pad[5];
+} zil_header_t;
+
+/*
+ * Log block trailer - structure at the end of the header and each log block
+ *
+ * The zit_bt contains a zbt_cksum which for the intent log is
+ * the sequence number of this log block. A seq of 0 is invalid.
+ * The zbt_cksum is checked by the SPA against the sequence
+ * number passed in the blk_cksum field of the blkptr_t
+ */
+typedef struct zil_trailer {
+ uint64_t zit_pad;
+ blkptr_t zit_next_blk; /* next block in chain */
+ uint64_t zit_nused; /* bytes in log block used */
+ zio_block_tail_t zit_bt; /* block trailer */
+} zil_trailer_t;
+
+#define ZIL_MIN_BLKSZ 4096ULL
+#define ZIL_MAX_BLKSZ SPA_MAXBLOCKSIZE
+#define ZIL_BLK_DATA_SZ(lwb) ((lwb)->lwb_sz - sizeof (zil_trailer_t))
+
+/*
+ * The words of a log block checksum.
+ */
+#define ZIL_ZC_GUID_0 0
+#define ZIL_ZC_GUID_1 1
+#define ZIL_ZC_OBJSET 2
+#define ZIL_ZC_SEQ 3
+
+/*
+ * Intent log transaction types and record structures
+ */
+#define TX_CREATE 1 /* Create file */
+#define TX_MKDIR 2 /* Make directory */
+#define TX_MKXATTR 3 /* Make XATTR directory */
+#define TX_SYMLINK 4 /* Create symbolic link to a file */
+#define TX_REMOVE 5 /* Remove file */
+#define TX_RMDIR 6 /* Remove directory */
+#define TX_LINK 7 /* Create hard link to a file */
+#define TX_RENAME 8 /* Rename a file */
+#define TX_WRITE 9 /* File write */
+#define TX_TRUNCATE 10 /* Truncate a file */
+#define TX_SETATTR 11 /* Set file attributes */
+#define TX_ACL 12 /* Set acl */
+#define TX_MAX_TYPE 13 /* Max transaction type */
+
+/*
+ * Format of log records.
+ * The fields are carefully defined to allow them to be aligned
+ * and sized the same on sparc & intel architectures.
+ * Each log record has a common structure at the beginning.
+ *
+ * Note, lrc_seq holds two different sequence numbers. Whilst in memory
+ * it contains the transaction sequence number. The log record on
+ * disk holds the sequence number of all log records which is used to
+ * ensure we don't replay the same record. The two sequence numbers are
+ * different because the transactions can now be pushed out of order.
+ */
+typedef struct { /* common log record header */
+ uint64_t lrc_txtype; /* intent log transaction type */
+ uint64_t lrc_reclen; /* transaction record length */
+ uint64_t lrc_txg; /* dmu transaction group number */
+ uint64_t lrc_seq; /* see comment above */
+} lr_t;
+
+typedef struct {
+ lr_t lr_common; /* common portion of log record */
+ uint64_t lr_doid; /* object id of directory */
+ uint64_t lr_foid; /* object id of created file object */
+ uint64_t lr_mode; /* mode of object */
+ uint64_t lr_uid; /* uid of object */
+ uint64_t lr_gid; /* gid of object */
+ uint64_t lr_gen; /* generation (txg of creation) */
+ uint64_t lr_crtime[2]; /* creation time */
+ uint64_t lr_rdev; /* rdev of object to create */
+ /* name of object to create follows this */
+ /* for symlinks, link content follows name */
+} lr_create_t;
+
+typedef struct {
+ lr_t lr_common; /* common portion of log record */
+ uint64_t lr_doid; /* obj id of directory */
+ /* name of object to remove follows this */
+} lr_remove_t;
+
+typedef struct {
+ lr_t lr_common; /* common portion of log record */
+ uint64_t lr_doid; /* obj id of directory */
+ uint64_t lr_link_obj; /* obj id of link */
+ /* name of object to link follows this */
+} lr_link_t;
+
+typedef struct {
+ lr_t lr_common; /* common portion of log record */
+ uint64_t lr_sdoid; /* obj id of source directory */
+ uint64_t lr_tdoid; /* obj id of target directory */
+ /* 2 strings: names of source and destination follow this */
+} lr_rename_t;
+
+typedef struct {
+ lr_t lr_common; /* common portion of log record */
+ uint64_t lr_foid; /* file object to write */
+ uint64_t lr_offset; /* offset to write to */
+ uint64_t lr_length; /* user data length to write */
+ uint64_t lr_blkoff; /* offset represented by lr_blkptr */
+ blkptr_t lr_blkptr; /* spa block pointer for replay */
+ /* write data will follow for small writes */
+} lr_write_t;
+
+typedef struct {
+ lr_t lr_common; /* common portion of log record */
+ uint64_t lr_foid; /* object id of file to truncate */
+ uint64_t lr_offset; /* offset to truncate from */
+ uint64_t lr_length; /* length to truncate */
+} lr_truncate_t;
+
+typedef struct {
+ lr_t lr_common; /* common portion of log record */
+ uint64_t lr_foid; /* file object to change attributes */
+ uint64_t lr_mask; /* mask of attributes to set */
+ uint64_t lr_mode; /* mode to set */
+ uint64_t lr_uid; /* uid to set */
+ uint64_t lr_gid; /* gid to set */
+ uint64_t lr_size; /* size to set */
+ uint64_t lr_atime[2]; /* access time */
+ uint64_t lr_mtime[2]; /* modification time */
+} lr_setattr_t;
+
+typedef struct {
+ lr_t lr_common; /* common portion of log record */
+ uint64_t lr_foid; /* obj id of file */
+ uint64_t lr_aclcnt; /* number of acl entries */
+ /* lr_aclcnt number of ace_t entries follow this */
+} lr_acl_t;
+
+/*
+ * ZIL structure definitions, interface function prototype and globals.
+ */
+
+/*
+ * ZFS intent log transaction structure
+ */
+typedef enum {
+ WR_INDIRECT, /* indirect - a large write (dmu_sync() data */
+ /* and put blkptr in log, rather than actual data) */
+ WR_COPIED, /* immediate - data is copied into lr_write_t */
+ WR_NEED_COPY, /* immediate - data needs to be copied if pushed */
+} itx_wr_state_t;
+
+typedef struct itx {
+ list_node_t itx_node; /* linkage on zl_itx_list */
+ void *itx_private; /* type-specific opaque data */
+ itx_wr_state_t itx_wr_state; /* write state */
+ uint8_t itx_sync; /* synchronous transaction */
+ lr_t itx_lr; /* common part of log record */
+ /* followed by type-specific part of lr_xx_t and its immediate data */
+} itx_t;
+
+
+/*
+ * zgd_t is passed through dmu_sync() to the callback routine zfs_get_done()
+ * to handle the cleanup of the dmu_sync() buffer write
+ */
+typedef struct {
+ zilog_t *zgd_zilog; /* zilog */
+ blkptr_t *zgd_bp; /* block pointer */
+ struct rl *zgd_rl; /* range lock */
+} zgd_t;
+
+
+typedef void zil_parse_blk_func_t(zilog_t *zilog, blkptr_t *bp, void *arg,
+ uint64_t txg);
+typedef void zil_parse_lr_func_t(zilog_t *zilog, lr_t *lr, void *arg,
+ uint64_t txg);
+typedef int zil_replay_func_t();
+typedef int zil_get_data_t(void *arg, lr_write_t *lr, char *dbuf, zio_t *zio);
+
+extern uint64_t zil_parse(zilog_t *zilog, zil_parse_blk_func_t *parse_blk_func,
+ zil_parse_lr_func_t *parse_lr_func, void *arg, uint64_t txg);
+
+extern void zil_init(void);
+extern void zil_fini(void);
+
+extern zilog_t *zil_alloc(objset_t *os, zil_header_t *zh_phys);
+extern void zil_free(zilog_t *zilog);
+
+extern zilog_t *zil_open(objset_t *os, zil_get_data_t *get_data);
+extern void zil_close(zilog_t *zilog);
+
+extern void zil_replay(objset_t *os, void *arg, uint64_t *txgp,
+ zil_replay_func_t *replay_func[TX_MAX_TYPE]);
+extern void zil_destroy(zilog_t *zilog, boolean_t keep_first);
+
+extern itx_t *zil_itx_create(int txtype, size_t lrsize);
+extern uint64_t zil_itx_assign(zilog_t *zilog, itx_t *itx, dmu_tx_t *tx);
+
+extern void zil_commit(zilog_t *zilog, uint64_t seq, uint64_t oid);
+
+extern int zil_claim(char *osname, void *txarg);
+extern void zil_sync(zilog_t *zilog, dmu_tx_t *tx);
+extern void zil_clean(zilog_t *zilog);
+extern int zil_is_committed(zilog_t *zilog);
+
+extern int zil_suspend(zilog_t *zilog);
+extern void zil_resume(zilog_t *zilog);
+
+extern void zil_add_vdev(zilog_t *zilog, uint64_t vdev);
+
+extern int zil_disable;
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* _SYS_ZIL_H */
--- /dev/null
+++ sys/cddl/contrib/opensolaris/uts/common/fs/zfs/sys/txg_impl.h
@@ -0,0 +1,77 @@
+/*
+ * CDDL HEADER START
+ *
+ * The contents of this file are subject to the terms of the
+ * Common Development and Distribution License, Version 1.0 only
+ * (the "License"). You may not use this file except in compliance
+ * with the License.
+ *
+ * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
+ * or http://www.opensolaris.org/os/licensing.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ *
+ * When distributing Covered Code, include this CDDL HEADER in each
+ * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
+ * If applicable, add the following below this CDDL HEADER, with the
+ * fields enclosed by brackets "[]" replaced with your own identifying
+ * information: Portions Copyright [yyyy] [name of copyright owner]
+ *
+ * CDDL HEADER END
+ */
+/*
+ * Copyright 2005 Sun Microsystems, Inc. All rights reserved.
+ * Use is subject to license terms.
+ */
+
+#ifndef _SYS_TXG_IMPL_H
+#define _SYS_TXG_IMPL_H
+
+#pragma ident "%Z%%M% %I% %E% SMI"
+
+#include <sys/spa.h>
+#include <sys/txg.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+struct tx_cpu {
+ kmutex_t tc_lock;
+ kcondvar_t tc_cv[TXG_SIZE];
+ uint64_t tc_count[TXG_SIZE];
+ char tc_pad[16];
+};
+
+typedef struct tx_state {
+ tx_cpu_t *tx_cpu; /* protects right to enter txg */
+ kmutex_t tx_sync_lock; /* protects tx_state_t */
+ krwlock_t tx_suspend;
+ uint64_t tx_open_txg; /* currently open txg id */
+ uint64_t tx_quiesced_txg; /* quiesced txg waiting for sync */
+ uint64_t tx_syncing_txg; /* currently syncing txg id */
+ uint64_t tx_synced_txg; /* last synced txg id */
+
+ uint64_t tx_sync_txg_waiting; /* txg we're waiting to sync */
+ uint64_t tx_quiesce_txg_waiting; /* txg we're waiting to open */
+
+ kcondvar_t tx_sync_more_cv;
+ kcondvar_t tx_sync_done_cv;
+ kcondvar_t tx_quiesce_more_cv;
+ kcondvar_t tx_quiesce_done_cv;
+ kcondvar_t tx_timeout_exit_cv;
+ kcondvar_t tx_exit_cv; /* wait for all threads to exit */
+
+ uint8_t tx_threads; /* number of threads */
+ uint8_t tx_exiting; /* set when we're exiting */
+
+ kthread_t *tx_sync_thread;
+ kthread_t *tx_quiesce_thread;
+ kthread_t *tx_timelimit_thread;
+} tx_state_t;
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* _SYS_TXG_IMPL_H */
--- /dev/null
+++ sys/cddl/contrib/opensolaris/uts/common/fs/zfs/sys/dmu_zfetch.h
@@ -0,0 +1,75 @@
+/*
+ * CDDL HEADER START
+ *
+ * The contents of this file are subject to the terms of the
+ * Common Development and Distribution License (the "License").
+ * You may not use this file except in compliance with the License.
+ *
+ * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
+ * or http://www.opensolaris.org/os/licensing.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ *
+ * When distributing Covered Code, include this CDDL HEADER in each
+ * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
+ * If applicable, add the following below this CDDL HEADER, with the
+ * fields enclosed by brackets "[]" replaced with your own identifying
+ * information: Portions Copyright [yyyy] [name of copyright owner]
+ *
+ * CDDL HEADER END
+ */
+/*
+ * Copyright 2006 Sun Microsystems, Inc. All rights reserved.
+ * Use is subject to license terms.
+ */
+
+#ifndef _DFETCH_H
+#define _DFETCH_H
+
+#pragma ident "%Z%%M% %I% %E% SMI"
+
+#include <sys/zfs_context.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+extern uint64_t zfetch_array_rd_sz;
+
+struct dnode; /* so we can reference dnode */
+
+typedef enum zfetch_dirn {
+ ZFETCH_FORWARD = 1, /* prefetch increasing block numbers */
+ ZFETCH_BACKWARD = -1 /* prefetch decreasing block numbers */
+} zfetch_dirn_t;
+
+typedef struct zstream {
+ uint64_t zst_offset; /* offset of starting block in range */
+ uint64_t zst_len; /* length of range, in blocks */
+ zfetch_dirn_t zst_direction; /* direction of prefetch */
+ uint64_t zst_stride; /* length of stride, in blocks */
+ uint64_t zst_ph_offset; /* prefetch offset, in blocks */
+ uint64_t zst_cap; /* prefetch limit (cap), in blocks */
+ kmutex_t zst_lock; /* protects stream */
+ clock_t zst_last; /* lbolt of last prefetch */
+ avl_node_t zst_node; /* embed avl node here */
+} zstream_t;
+
+typedef struct zfetch {
+ krwlock_t zf_rwlock; /* protects zfetch structure */
+ list_t zf_stream; /* AVL tree of zstream_t's */
+ struct dnode *zf_dnode; /* dnode that owns this zfetch */
+ uint32_t zf_stream_cnt; /* # of active streams */
+ uint64_t zf_alloc_fail; /* # of failed attempts to alloc strm */
+} zfetch_t;
+
+void dmu_zfetch_init(zfetch_t *, struct dnode *);
+void dmu_zfetch_rele(zfetch_t *);
+void dmu_zfetch(zfetch_t *, uint64_t, uint64_t, int);
+
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* _DFETCH_H */
--- /dev/null
+++ sys/cddl/contrib/opensolaris/uts/common/fs/zfs/sys/vdev_disk.h
@@ -0,0 +1,52 @@
+/*
+ * CDDL HEADER START
+ *
+ * The contents of this file are subject to the terms of the
+ * Common Development and Distribution License, Version 1.0 only
+ * (the "License"). You may not use this file except in compliance
+ * with the License.
+ *
+ * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
+ * or http://www.opensolaris.org/os/licensing.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ *
+ * When distributing Covered Code, include this CDDL HEADER in each
+ * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
+ * If applicable, add the following below this CDDL HEADER, with the
+ * fields enclosed by brackets "[]" replaced with your own identifying
+ * information: Portions Copyright [yyyy] [name of copyright owner]
+ *
+ * CDDL HEADER END
+ */
+/*
+ * Copyright 2005 Sun Microsystems, Inc. All rights reserved.
+ * Use is subject to license terms.
+ */
+
+#ifndef _SYS_VDEV_DISK_H
+#define _SYS_VDEV_DISK_H
+
+#pragma ident "%Z%%M% %I% %E% SMI"
+
+#include <sys/vdev.h>
+#ifdef _KERNEL
+#include <sys/sunldi.h>
+#include <sys/sunddi.h>
+#endif
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+typedef struct vdev_disk {
+ ddi_devid_t vd_devid;
+ char *vd_minor;
+ ldi_handle_t vd_lh;
+} vdev_disk_t;
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* _SYS_VDEV_DISK_H */
--- /dev/null
+++ sys/cddl/contrib/opensolaris/uts/common/fs/zfs/sys/dmu.h
@@ -0,0 +1,587 @@
+/*
+ * CDDL HEADER START
+ *
+ * The contents of this file are subject to the terms of the
+ * Common Development and Distribution License (the "License").
+ * You may not use this file except in compliance with the License.
+ *
+ * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
+ * or http://www.opensolaris.org/os/licensing.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ *
+ * When distributing Covered Code, include this CDDL HEADER in each
+ * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
+ * If applicable, add the following below this CDDL HEADER, with the
+ * fields enclosed by brackets "[]" replaced with your own identifying
+ * information: Portions Copyright [yyyy] [name of copyright owner]
+ *
+ * CDDL HEADER END
+ */
+/*
+ * Copyright 2007 Sun Microsystems, Inc. All rights reserved.
+ * Use is subject to license terms.
+ */
+
+#ifndef _SYS_DMU_H
+#define _SYS_DMU_H
+
+#pragma ident "%Z%%M% %I% %E% SMI"
+
+/*
+ * This file describes the interface that the DMU provides for its
+ * consumers.
+ *
+ * The DMU also interacts with the SPA. That interface is described in
+ * dmu_spa.h.
+ */
+
+#include <sys/types.h>
+#include <sys/param.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+struct uio;
+struct page;
+struct vnode;
+struct spa;
+struct zilog;
+struct zio;
+struct blkptr;
+struct zap_cursor;
+struct dsl_dataset;
+struct dsl_pool;
+struct dnode;
+struct drr_begin;
+struct drr_end;
+struct zbookmark;
+struct spa;
+struct nvlist;
+struct objset_impl;
+struct file;
+
+typedef struct objset objset_t;
+typedef struct dmu_tx dmu_tx_t;
+typedef struct dsl_dir dsl_dir_t;
+
+typedef enum dmu_object_type {
+ DMU_OT_NONE,
+ /* general: */
+ DMU_OT_OBJECT_DIRECTORY, /* ZAP */
+ DMU_OT_OBJECT_ARRAY, /* UINT64 */
+ DMU_OT_PACKED_NVLIST, /* UINT8 (XDR by nvlist_pack/unpack) */
+ DMU_OT_PACKED_NVLIST_SIZE, /* UINT64 */
+ DMU_OT_BPLIST, /* UINT64 */
+ DMU_OT_BPLIST_HDR, /* UINT64 */
+ /* spa: */
+ DMU_OT_SPACE_MAP_HEADER, /* UINT64 */
+ DMU_OT_SPACE_MAP, /* UINT64 */
+ /* zil: */
+ DMU_OT_INTENT_LOG, /* UINT64 */
+ /* dmu: */
+ DMU_OT_DNODE, /* DNODE */
+ DMU_OT_OBJSET, /* OBJSET */
+ /* dsl: */
+ DMU_OT_DSL_DIR, /* UINT64 */
+ DMU_OT_DSL_DIR_CHILD_MAP, /* ZAP */
+ DMU_OT_DSL_DS_SNAP_MAP, /* ZAP */
+ DMU_OT_DSL_PROPS, /* ZAP */
+ DMU_OT_DSL_DATASET, /* UINT64 */
+ /* zpl: */
+ DMU_OT_ZNODE, /* ZNODE */
+ DMU_OT_ACL, /* ACL */
+ DMU_OT_PLAIN_FILE_CONTENTS, /* UINT8 */
+ DMU_OT_DIRECTORY_CONTENTS, /* ZAP */
+ DMU_OT_MASTER_NODE, /* ZAP */
+ DMU_OT_UNLINKED_SET, /* ZAP */
+ /* zvol: */
+ DMU_OT_ZVOL, /* UINT8 */
+ DMU_OT_ZVOL_PROP, /* ZAP */
+ /* other; for testing only! */
+ DMU_OT_PLAIN_OTHER, /* UINT8 */
+ DMU_OT_UINT64_OTHER, /* UINT64 */
+ DMU_OT_ZAP_OTHER, /* ZAP */
+ /* new object types: */
+ DMU_OT_ERROR_LOG, /* ZAP */
+ DMU_OT_SPA_HISTORY, /* UINT8 */
+ DMU_OT_SPA_HISTORY_OFFSETS, /* spa_his_phys_t */
+ DMU_OT_POOL_PROPS, /* ZAP */
+
+ DMU_OT_NUMTYPES
+} dmu_object_type_t;
+
+typedef enum dmu_objset_type {
+ DMU_OST_NONE,
+ DMU_OST_META,
+ DMU_OST_ZFS,
+ DMU_OST_ZVOL,
+ DMU_OST_OTHER, /* For testing only! */
+ DMU_OST_ANY, /* Be careful! */
+ DMU_OST_NUMTYPES
+} dmu_objset_type_t;
+
+void byteswap_uint64_array(void *buf, size_t size);
+void byteswap_uint32_array(void *buf, size_t size);
+void byteswap_uint16_array(void *buf, size_t size);
+void byteswap_uint8_array(void *buf, size_t size);
+void zap_byteswap(void *buf, size_t size);
+void zfs_acl_byteswap(void *buf, size_t size);
+void zfs_znode_byteswap(void *buf, size_t size);
+
+#define DS_MODE_NONE 0 /* invalid, to aid debugging */
+#define DS_MODE_STANDARD 1 /* normal access, no special needs */
+#define DS_MODE_PRIMARY 2 /* the "main" access, e.g. a mount */
+#define DS_MODE_EXCLUSIVE 3 /* exclusive access, e.g. to destroy */
+#define DS_MODE_LEVELS 4
+#define DS_MODE_LEVEL(x) ((x) & (DS_MODE_LEVELS - 1))
+#define DS_MODE_READONLY 0x8
+#define DS_MODE_IS_READONLY(x) ((x) & DS_MODE_READONLY)
+#define DS_MODE_INCONSISTENT 0x10
+#define DS_MODE_IS_INCONSISTENT(x) ((x) & DS_MODE_INCONSISTENT)
+
+#define DS_FIND_SNAPSHOTS (1<<0)
+#define DS_FIND_CHILDREN (1<<1)
+
+/*
+ * The maximum number of bytes that can be accessed as part of one
+ * operation, including metadata.
+ */
+#define DMU_MAX_ACCESS (10<<20) /* 10MB */
+
+/*
+ * Public routines to create, destroy, open, and close objsets.
+ */
+int dmu_objset_open(const char *name, dmu_objset_type_t type, int mode,
+ objset_t **osp);
+void dmu_objset_close(objset_t *os);
+int dmu_objset_evict_dbufs(objset_t *os, int try);
+int dmu_objset_create(const char *name, dmu_objset_type_t type,
+ objset_t *clone_parent,
+ void (*func)(objset_t *os, void *arg, dmu_tx_t *tx), void *arg);
+int dmu_objset_destroy(const char *name);
+int dmu_snapshots_destroy(char *fsname, char *snapname);
+int dmu_objset_rollback(const char *name);
+int dmu_objset_snapshot(char *fsname, char *snapname, boolean_t recursive);
+int dmu_objset_rename(const char *name, const char *newname,
+ boolean_t recursive);
+int dmu_objset_find(char *name, int func(char *, void *), void *arg,
+ int flags);
+void dmu_objset_byteswap(void *buf, size_t size);
+
+typedef struct dmu_buf {
+ uint64_t db_object; /* object that this buffer is part of */
+ uint64_t db_offset; /* byte offset in this object */
+ uint64_t db_size; /* size of buffer in bytes */
+ void *db_data; /* data in buffer */
+} dmu_buf_t;
+
+typedef void dmu_buf_evict_func_t(struct dmu_buf *db, void *user_ptr);
+
+/*
+ * Callback function to perform byte swapping on a block.
+ */
+typedef void dmu_byteswap_func_t(void *buf, size_t size);
+
+/*
+ * The names of zap entries in the DIRECTORY_OBJECT of the MOS.
+ */
+#define DMU_POOL_DIRECTORY_OBJECT 1
+#define DMU_POOL_CONFIG "config"
+#define DMU_POOL_ROOT_DATASET "root_dataset"
+#define DMU_POOL_SYNC_BPLIST "sync_bplist"
+#define DMU_POOL_ERRLOG_SCRUB "errlog_scrub"
+#define DMU_POOL_ERRLOG_LAST "errlog_last"
+#define DMU_POOL_SPARES "spares"
+#define DMU_POOL_DEFLATE "deflate"
+#define DMU_POOL_HISTORY "history"
+#define DMU_POOL_PROPS "pool_props"
+
+/*
+ * Allocate an object from this objset. The range of object numbers
+ * available is (0, DN_MAX_OBJECT). Object 0 is the meta-dnode.
+ *
+ * The transaction must be assigned to a txg. The newly allocated
+ * object will be "held" in the transaction (ie. you can modify the
+ * newly allocated object in this transaction).
+ *
+ * dmu_object_alloc() chooses an object and returns it in *objectp.
+ *
+ * dmu_object_claim() allocates a specific object number. If that
+ * number is already allocated, it fails and returns EEXIST.
+ *
+ * Return 0 on success, or ENOSPC or EEXIST as specified above.
+ */
+uint64_t dmu_object_alloc(objset_t *os, dmu_object_type_t ot,
+ int blocksize, dmu_object_type_t bonus_type, int bonus_len, dmu_tx_t *tx);
+int dmu_object_claim(objset_t *os, uint64_t object, dmu_object_type_t ot,
+ int blocksize, dmu_object_type_t bonus_type, int bonus_len, dmu_tx_t *tx);
+int dmu_object_reclaim(objset_t *os, uint64_t object, dmu_object_type_t ot,
+ int blocksize, dmu_object_type_t bonustype, int bonuslen, dmu_tx_t *tx);
+
+/*
+ * Free an object from this objset.
+ *
+ * The object's data will be freed as well (ie. you don't need to call
+ * dmu_free(object, 0, -1, tx)).
+ *
+ * The object need not be held in the transaction.
+ *
+ * If there are any holds on this object's buffers (via dmu_buf_hold()),
+ * or tx holds on the object (via dmu_tx_hold_object()), you can not
+ * free it; it fails and returns EBUSY.
+ *
+ * If the object is not allocated, it fails and returns ENOENT.
+ *
+ * Return 0 on success, or EBUSY or ENOENT as specified above.
+ */
+int dmu_object_free(objset_t *os, uint64_t object, dmu_tx_t *tx);
+
+/*
+ * Find the next allocated or free object.
+ *
+ * The objectp parameter is in-out. It will be updated to be the next
+ * object which is allocated. Ignore objects which have not been
+ * modified since txg.
+ *
+ * XXX Can only be called on a objset with no dirty data.
+ *
+ * Returns 0 on success, or ENOENT if there are no more objects.
+ */
+int dmu_object_next(objset_t *os, uint64_t *objectp,
+ boolean_t hole, uint64_t txg);
+
+/*
+ * Set the data blocksize for an object.
+ *
+ * The object cannot have any blocks allcated beyond the first. If
+ * the first block is allocated already, the new size must be greater
+ * than the current block size. If these conditions are not met,
+ * ENOTSUP will be returned.
+ *
+ * Returns 0 on success, or EBUSY if there are any holds on the object
+ * contents, or ENOTSUP as described above.
+ */
+int dmu_object_set_blocksize(objset_t *os, uint64_t object, uint64_t size,
+ int ibs, dmu_tx_t *tx);
+
+/*
+ * Set the checksum property on a dnode. The new checksum algorithm will
+ * apply to all newly written blocks; existing blocks will not be affected.
+ */
+void dmu_object_set_checksum(objset_t *os, uint64_t object, uint8_t checksum,
+ dmu_tx_t *tx);
+
+/*
+ * Set the compress property on a dnode. The new compression algorithm will
+ * apply to all newly written blocks; existing blocks will not be affected.
+ */
+void dmu_object_set_compress(objset_t *os, uint64_t object, uint8_t compress,
+ dmu_tx_t *tx);
+
+/*
+ * Decide how many copies of a given block we should make. Can be from
+ * 1 to SPA_DVAS_PER_BP.
+ */
+int dmu_get_replication_level(struct objset_impl *, struct zbookmark *zb,
+ dmu_object_type_t ot);
+/*
+ * The bonus data is accessed more or less like a regular buffer.
+ * You must dmu_bonus_hold() to get the buffer, which will give you a
+ * dmu_buf_t with db_offset==-1ULL, and db_size = the size of the bonus
+ * data. As with any normal buffer, you must call dmu_buf_read() to
+ * read db_data, dmu_buf_will_dirty() before modifying it, and the
+ * object must be held in an assigned transaction before calling
+ * dmu_buf_will_dirty. You may use dmu_buf_set_user() on the bonus
+ * buffer as well. You must release your hold with dmu_buf_rele().
+ */
+int dmu_bonus_hold(objset_t *os, uint64_t object, void *tag, dmu_buf_t **);
+int dmu_bonus_max(void);
+
+/*
+ * Obtain the DMU buffer from the specified object which contains the
+ * specified offset. dmu_buf_hold() puts a "hold" on the buffer, so
+ * that it will remain in memory. You must release the hold with
+ * dmu_buf_rele(). You musn't access the dmu_buf_t after releasing your
+ * hold. You must have a hold on any dmu_buf_t* you pass to the DMU.
+ *
+ * You must call dmu_buf_read, dmu_buf_will_dirty, or dmu_buf_will_fill
+ * on the returned buffer before reading or writing the buffer's
+ * db_data. The comments for those routines describe what particular
+ * operations are valid after calling them.
+ *
+ * The object number must be a valid, allocated object number.
+ */
+int dmu_buf_hold(objset_t *os, uint64_t object, uint64_t offset,
+ void *tag, dmu_buf_t **);
+void dmu_buf_add_ref(dmu_buf_t *db, void* tag);
+void dmu_buf_rele(dmu_buf_t *db, void *tag);
+uint64_t dmu_buf_refcount(dmu_buf_t *db);
+
+/*
+ * dmu_buf_hold_array holds the DMU buffers which contain all bytes in a
+ * range of an object. A pointer to an array of dmu_buf_t*'s is
+ * returned (in *dbpp).
+ *
+ * dmu_buf_rele_array releases the hold on an array of dmu_buf_t*'s, and
+ * frees the array. The hold on the array of buffers MUST be released
+ * with dmu_buf_rele_array. You can NOT release the hold on each buffer
+ * individually with dmu_buf_rele.
+ */
+int dmu_buf_hold_array_by_bonus(dmu_buf_t *db, uint64_t offset,
+ uint64_t length, int read, void *tag, int *numbufsp, dmu_buf_t ***dbpp);
+void dmu_buf_rele_array(dmu_buf_t **, int numbufs, void *tag);
+
+/*
+ * Returns NULL on success, or the existing user ptr if it's already
+ * been set.
+ *
+ * user_ptr is for use by the user and can be obtained via dmu_buf_get_user().
+ *
+ * user_data_ptr_ptr should be NULL, or a pointer to a pointer which
+ * will be set to db->db_data when you are allowed to access it. Note
+ * that db->db_data (the pointer) can change when you do dmu_buf_read(),
+ * dmu_buf_tryupgrade(), dmu_buf_will_dirty(), or dmu_buf_will_fill().
+ * *user_data_ptr_ptr will be set to the new value when it changes.
+ *
+ * If non-NULL, pageout func will be called when this buffer is being
+ * excised from the cache, so that you can clean up the data structure
+ * pointed to by user_ptr.
+ *
+ * dmu_evict_user() will call the pageout func for all buffers in a
+ * objset with a given pageout func.
+ */
+void *dmu_buf_set_user(dmu_buf_t *db, void *user_ptr, void *user_data_ptr_ptr,
+ dmu_buf_evict_func_t *pageout_func);
+/*
+ * set_user_ie is the same as set_user, but request immediate eviction
+ * when hold count goes to zero.
+ */
+void *dmu_buf_set_user_ie(dmu_buf_t *db, void *user_ptr,
+ void *user_data_ptr_ptr, dmu_buf_evict_func_t *pageout_func);
+void *dmu_buf_update_user(dmu_buf_t *db_fake, void *old_user_ptr,
+ void *user_ptr, void *user_data_ptr_ptr,
+ dmu_buf_evict_func_t *pageout_func);
+void dmu_evict_user(objset_t *os, dmu_buf_evict_func_t *func);
+
+/*
+ * Returns the user_ptr set with dmu_buf_set_user(), or NULL if not set.
+ */
+void *dmu_buf_get_user(dmu_buf_t *db);
+
+/*
+ * Indicate that you are going to modify the buffer's data (db_data).
+ *
+ * The transaction (tx) must be assigned to a txg (ie. you've called
+ * dmu_tx_assign()). The buffer's object must be held in the tx
+ * (ie. you've called dmu_tx_hold_object(tx, db->db_object)).
+ */
+void dmu_buf_will_dirty(dmu_buf_t *db, dmu_tx_t *tx);
+
+/*
+ * You must create a transaction, then hold the objects which you will
+ * (or might) modify as part of this transaction. Then you must assign
+ * the transaction to a transaction group. Once the transaction has
+ * been assigned, you can modify buffers which belong to held objects as
+ * part of this transaction. You can't modify buffers before the
+ * transaction has been assigned; you can't modify buffers which don't
+ * belong to objects which this transaction holds; you can't hold
+ * objects once the transaction has been assigned. You may hold an
+ * object which you are going to free (with dmu_object_free()), but you
+ * don't have to.
+ *
+ * You can abort the transaction before it has been assigned.
+ *
+ * Note that you may hold buffers (with dmu_buf_hold) at any time,
+ * regardless of transaction state.
+ */
+
+#define DMU_NEW_OBJECT (-1ULL)
+#define DMU_OBJECT_END (-1ULL)
+
+dmu_tx_t *dmu_tx_create(objset_t *os);
+void dmu_tx_hold_write(dmu_tx_t *tx, uint64_t object, uint64_t off, int len);
+void dmu_tx_hold_free(dmu_tx_t *tx, uint64_t object, uint64_t off,
+ uint64_t len);
+void dmu_tx_hold_zap(dmu_tx_t *tx, uint64_t object, int add, char *name);
+void dmu_tx_hold_bonus(dmu_tx_t *tx, uint64_t object);
+void dmu_tx_abort(dmu_tx_t *tx);
+int dmu_tx_assign(dmu_tx_t *tx, uint64_t txg_how);
+void dmu_tx_wait(dmu_tx_t *tx);
+void dmu_tx_commit(dmu_tx_t *tx);
+
+/*
+ * Free up the data blocks for a defined range of a file. If size is
+ * zero, the range from offset to end-of-file is freed.
+ */
+int dmu_free_range(objset_t *os, uint64_t object, uint64_t offset,
+ uint64_t size, dmu_tx_t *tx);
+
+/*
+ * Convenience functions.
+ *
+ * Canfail routines will return 0 on success, or an errno if there is a
+ * nonrecoverable I/O error.
+ */
+int dmu_read(objset_t *os, uint64_t object, uint64_t offset, uint64_t size,
+ void *buf);
+void dmu_write(objset_t *os, uint64_t object, uint64_t offset, uint64_t size,
+ const void *buf, dmu_tx_t *tx);
+int dmu_read_uio(objset_t *os, uint64_t object, struct uio *uio, uint64_t size);
+int dmu_write_uio(objset_t *os, uint64_t object, struct uio *uio, uint64_t size,
+ dmu_tx_t *tx);
+int dmu_write_pages(objset_t *os, uint64_t object, uint64_t offset,
+ uint64_t size, struct page *pp, dmu_tx_t *tx);
+
+extern int zfs_prefetch_disable;
+
+/*
+ * Asynchronously try to read in the data.
+ */
+void dmu_prefetch(objset_t *os, uint64_t object, uint64_t offset,
+ uint64_t len);
+
+typedef struct dmu_object_info {
+ /* All sizes are in bytes. */
+ uint32_t doi_data_block_size;
+ uint32_t doi_metadata_block_size;
+ uint64_t doi_bonus_size;
+ dmu_object_type_t doi_type;
+ dmu_object_type_t doi_bonus_type;
+ uint8_t doi_indirection; /* 2 = dnode->indirect->data */
+ uint8_t doi_checksum;
+ uint8_t doi_compress;
+ uint8_t doi_pad[5];
+ /* Values below are number of 512-byte blocks. */
+ uint64_t doi_physical_blks; /* data + metadata */
+ uint64_t doi_max_block_offset;
+} dmu_object_info_t;
+
+typedef struct dmu_object_type_info {
+ dmu_byteswap_func_t *ot_byteswap;
+ boolean_t ot_metadata;
+ char *ot_name;
+} dmu_object_type_info_t;
+
+extern const dmu_object_type_info_t dmu_ot[DMU_OT_NUMTYPES];
+
+/*
+ * Get information on a DMU object.
+ *
+ * Return 0 on success or ENOENT if object is not allocated.
+ *
+ * If doi is NULL, just indicates whether the object exists.
+ */
+int dmu_object_info(objset_t *os, uint64_t object, dmu_object_info_t *doi);
+void dmu_object_info_from_dnode(struct dnode *dn, dmu_object_info_t *doi);
+void dmu_object_info_from_db(dmu_buf_t *db, dmu_object_info_t *doi);
+void dmu_object_size_from_db(dmu_buf_t *db, uint32_t *blksize,
+ u_longlong_t *nblk512);
+
+typedef struct dmu_objset_stats {
+ uint64_t dds_num_clones; /* number of clones of this */
+ uint64_t dds_creation_txg;
+ dmu_objset_type_t dds_type;
+ uint8_t dds_is_snapshot;
+ uint8_t dds_inconsistent;
+ char dds_clone_of[MAXNAMELEN];
+} dmu_objset_stats_t;
+
+/*
+ * Get stats on a dataset.
+ */
+void dmu_objset_fast_stat(objset_t *os, dmu_objset_stats_t *stat);
+
+/*
+ * Add entries to the nvlist for all the objset's properties. See
+ * zfs_prop_table[] and zfs(1m) for details on the properties.
+ */
+void dmu_objset_stats(objset_t *os, struct nvlist *nv);
+
+/*
+ * Get the space usage statistics for statvfs().
+ *
+ * refdbytes is the amount of space "referenced" by this objset.
+ * availbytes is the amount of space available to this objset, taking
+ * into account quotas & reservations, assuming that no other objsets
+ * use the space first. These values correspond to the 'referenced' and
+ * 'available' properties, described in the zfs(1m) manpage.
+ *
+ * usedobjs and availobjs are the number of objects currently allocated,
+ * and available.
+ */
+void dmu_objset_space(objset_t *os, uint64_t *refdbytesp, uint64_t *availbytesp,
+ uint64_t *usedobjsp, uint64_t *availobjsp);
+
+/*
+ * The fsid_guid is a 56-bit ID that can change to avoid collisions.
+ * (Contrast with the ds_guid which is a 64-bit ID that will never
+ * change, so there is a small probability that it will collide.)
+ */
+uint64_t dmu_objset_fsid_guid(objset_t *os);
+
+int dmu_objset_is_snapshot(objset_t *os);
+
+extern struct spa *dmu_objset_spa(objset_t *os);
+extern struct zilog *dmu_objset_zil(objset_t *os);
+extern struct dsl_pool *dmu_objset_pool(objset_t *os);
+extern struct dsl_dataset *dmu_objset_ds(objset_t *os);
+extern void dmu_objset_name(objset_t *os, char *buf);
+extern dmu_objset_type_t dmu_objset_type(objset_t *os);
+extern uint64_t dmu_objset_id(objset_t *os);
+extern int dmu_snapshot_list_next(objset_t *os, int namelen, char *name,
+ uint64_t *id, uint64_t *offp);
+extern int dmu_dir_list_next(objset_t *os, int namelen, char *name,
+ uint64_t *idp, uint64_t *offp);
+
+/*
+ * Return the txg number for the given assigned transaction.
+ */
+uint64_t dmu_tx_get_txg(dmu_tx_t *tx);
+
+/*
+ * Synchronous write.
+ * If a parent zio is provided this function initiates a write on the
+ * provided buffer as a child of the parent zio.
+ * In the absense of a parent zio, the write is completed synchronously.
+ * At write completion, blk is filled with the bp of the written block.
+ * Note that while the data covered by this function will be on stable
+ * storage when the write completes this new data does not become a
+ * permanent part of the file until the associated transaction commits.
+ */
+typedef void dmu_sync_cb_t(dmu_buf_t *db, void *arg);
+int dmu_sync(struct zio *zio, dmu_buf_t *db,
+ struct blkptr *bp, uint64_t txg, dmu_sync_cb_t *done, void *arg);
+
+/*
+ * Find the next hole or data block in file starting at *off
+ * Return found offset in *off. Return ESRCH for end of file.
+ */
+int dmu_offset_next(objset_t *os, uint64_t object, boolean_t hole,
+ uint64_t *off);
+
+/*
+ * Initial setup and final teardown.
+ */
+extern void dmu_init(void);
+extern void dmu_fini(void);
+
+typedef void (*dmu_traverse_cb_t)(objset_t *os, void *arg, struct blkptr *bp,
+ uint64_t object, uint64_t offset, int len);
+void dmu_traverse_objset(objset_t *os, uint64_t txg_start,
+ dmu_traverse_cb_t cb, void *arg);
+
+int dmu_sendbackup(objset_t *tosnap, objset_t *fromsnap, struct file *fp);
+int dmu_recvbackup(char *tosnap, struct drr_begin *drrb, uint64_t *sizep,
+ boolean_t force, struct file *fp, uint64_t voffset);
+
+/* CRC64 table */
+#define ZFS_CRC64_POLY 0xC96C5795D7870F42ULL /* ECMA-182, reflected form */
+extern uint64_t zfs_crc64_table[256];
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* _SYS_DMU_H */
--- /dev/null
+++ sys/cddl/contrib/opensolaris/uts/common/fs/zfs/sys/zfs_vfsops.h
@@ -0,0 +1,100 @@
+/*
+ * CDDL HEADER START
+ *
+ * The contents of this file are subject to the terms of the
+ * Common Development and Distribution License (the "License").
+ * You may not use this file except in compliance with the License.
+ *
+ * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
+ * or http://www.opensolaris.org/os/licensing.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ *
+ * When distributing Covered Code, include this CDDL HEADER in each
+ * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
+ * If applicable, add the following below this CDDL HEADER, with the
+ * fields enclosed by brackets "[]" replaced with your own identifying
+ * information: Portions Copyright [yyyy] [name of copyright owner]
+ *
+ * CDDL HEADER END
+ */
+/*
+ * Copyright 2007 Sun Microsystems, Inc. All rights reserved.
+ * Use is subject to license terms.
+ */
+
+#ifndef _SYS_FS_ZFS_VFSOPS_H
+#define _SYS_FS_ZFS_VFSOPS_H
+
+#pragma ident "%Z%%M% %I% %E% SMI"
+
+#include <sys/list.h>
+#include <sys/vfs.h>
+#include <sys/zil.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+typedef struct zfsvfs zfsvfs_t;
+
+struct zfsvfs {
+ vfs_t *z_vfs; /* generic fs struct */
+ zfsvfs_t *z_parent; /* parent fs */
+ objset_t *z_os; /* objset reference */
+ uint64_t z_root; /* id of root znode */
+ uint64_t z_unlinkedobj; /* id of unlinked zapobj */
+ uint64_t z_max_blksz; /* maximum block size for files */
+ uint64_t z_assign; /* TXG_NOWAIT or set by zil_replay() */
+ zilog_t *z_log; /* intent log pointer */
+ uint_t z_acl_mode; /* acl chmod/mode behavior */
+ uint_t z_acl_inherit; /* acl inheritance behavior */
+ boolean_t z_atime; /* enable atimes mount option */
+ boolean_t z_unmounted1; /* unmounted phase 1 */
+ boolean_t z_unmounted2; /* unmounted phase 2 */
+ uint32_t z_op_cnt; /* vnode/vfs operations ref count */
+ krwlock_t z_um_lock; /* rw lock for umount phase 2 */
+ list_t z_all_znodes; /* all vnodes in the fs */
+ kmutex_t z_znodes_lock; /* lock for z_all_znodes */
+ vnode_t *z_ctldir; /* .zfs directory pointer */
+ boolean_t z_show_ctldir; /* expose .zfs in the root dir */
+ boolean_t z_issnap; /* true if this is a snapshot */
+#define ZFS_OBJ_MTX_SZ 64
+ kmutex_t z_hold_mtx[ZFS_OBJ_MTX_SZ]; /* znode hold locks */
+};
+
+/*
+ * The total file ID size is limited to 12 bytes (including the length
+ * field) in the NFSv2 protocol. For historical reasons, this same limit
+ * is currently being imposed by the Solaris NFSv3 implementation...
+ * although the protocol actually permits a maximum of 64 bytes. It will
+ * not be possible to expand beyond 12 bytes without abandoning support
+ * of NFSv2 and making some changes to the Solaris NFSv3 implementation.
+ *
+ * For the time being, we will partition up the available space as follows:
+ * 2 bytes fid length (required)
+ * 6 bytes object number (48 bits)
+ * 4 bytes generation number (32 bits)
+ * We reserve only 48 bits for the object number, as this is the limit
+ * currently defined and imposed by the DMU.
+ */
+typedef struct zfid_short {
+ uint16_t zf_len;
+ uint8_t zf_object[6]; /* obj[i] = obj >> (8 * i) */
+ uint8_t zf_gen[4]; /* gen[i] = gen >> (8 * i) */
+} zfid_short_t;
+
+typedef struct zfid_long {
+ zfid_short_t z_fid;
+ uint8_t zf_setid[6]; /* obj[i] = obj >> (8 * i) */
+ uint8_t zf_setgen[2]; /* gen[i] = gen >> (8 * i) */
+} zfid_long_t;
+
+#define SHORT_FID_LEN (sizeof (zfid_short_t) - sizeof (uint16_t))
+#define LONG_FID_LEN (sizeof (zfid_long_t) - sizeof (uint16_t))
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* _SYS_FS_ZFS_VFSOPS_H */
--- /dev/null
+++ sys/cddl/contrib/opensolaris/uts/common/fs/zfs/sys/zfs_ctldir.h
@@ -0,0 +1,71 @@
+/*
+ * CDDL HEADER START
+ *
+ * The contents of this file are subject to the terms of the
+ * Common Development and Distribution License, Version 1.0 only
+ * (the "License"). You may not use this file except in compliance
+ * with the License.
+ *
+ * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
+ * or http://www.opensolaris.org/os/licensing.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ *
+ * When distributing Covered Code, include this CDDL HEADER in each
+ * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
+ * If applicable, add the following below this CDDL HEADER, with the
+ * fields enclosed by brackets "[]" replaced with your own identifying
+ * information: Portions Copyright [yyyy] [name of copyright owner]
+ *
+ * CDDL HEADER END
+ */
+/*
+ * Copyright 2005 Sun Microsystems, Inc. All rights reserved.
+ * Use is subject to license terms.
+ */
+
+#ifndef _ZFS_CTLDIR_H
+#define _ZFS_CTLDIR_H
+
+#pragma ident "%Z%%M% %I% %E% SMI"
+
+#include <sys/vnode.h>
+#include <sys/zfs_vfsops.h>
+#include <sys/zfs_znode.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#define ZFS_CTLDIR_NAME ".zfs"
+
+#define zfs_has_ctldir(zdp) \
+ ((zdp)->z_id == (zdp)->z_zfsvfs->z_root && \
+ ((zdp)->z_zfsvfs->z_ctldir != NULL))
+#define zfs_show_ctldir(zdp) \
+ (zfs_has_ctldir(zdp) && \
+ ((zdp)->z_zfsvfs->z_show_ctldir))
+
+void zfsctl_create(zfsvfs_t *);
+void zfsctl_destroy(zfsvfs_t *);
+vnode_t *zfsctl_root(znode_t *);
+void zfsctl_init(void);
+void zfsctl_fini(void);
+
+int zfsctl_rename_snapshot(const char *from, const char *to);
+int zfsctl_destroy_snapshot(const char *snapname, int force);
+int zfsctl_umount_snapshots(vfs_t *, int, cred_t *);
+
+int zfsctl_root_lookup(vnode_t *dvp, char *nm, vnode_t **vpp, pathname_t *pnp,
+ int flags, vnode_t *rdir, cred_t *cr);
+
+int zfsctl_lookup_objset(vfs_t *vfsp, uint64_t objsetid, zfsvfs_t **zfsvfsp);
+
+#define ZFSCTL_INO_ROOT 0x1
+#define ZFSCTL_INO_SNAPDIR 0x2
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* _ZFS_CTLDIR_H */
--- /dev/null
+++ sys/cddl/contrib/opensolaris/uts/common/fs/zfs/sys/zfs_debug.h
@@ -0,0 +1,75 @@
+/*
+ * CDDL HEADER START
+ *
+ * The contents of this file are subject to the terms of the
+ * Common Development and Distribution License (the "License").
+ * You may not use this file except in compliance with the License.
+ *
+ * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
+ * or http://www.opensolaris.org/os/licensing.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ *
+ * When distributing Covered Code, include this CDDL HEADER in each
+ * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
+ * If applicable, add the following below this CDDL HEADER, with the
+ * fields enclosed by brackets "[]" replaced with your own identifying
+ * information: Portions Copyright [yyyy] [name of copyright owner]
+ *
+ * CDDL HEADER END
+ */
+/*
+ * Copyright 2007 Sun Microsystems, Inc. All rights reserved.
+ * Use is subject to license terms.
+ */
+
+#ifndef _SYS_ZFS_DEBUG_H
+#define _SYS_ZFS_DEBUG_H
+
+#pragma ident "%Z%%M% %I% %E% SMI"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#ifndef TRUE
+#define TRUE 1
+#endif
+
+#ifndef FALSE
+#define FALSE 0
+#endif
+
+/*
+ * ZFS debugging
+ */
+
+#if defined(DEBUG) || !defined(_KERNEL)
+#define ZFS_DEBUG
+#endif
+
+extern int zfs_flags;
+
+#define ZFS_DEBUG_DPRINTF 0x0001
+#define ZFS_DEBUG_DBUF_VERIFY 0x0002
+#define ZFS_DEBUG_DNODE_VERIFY 0x0004
+#define ZFS_DEBUG_SNAPNAMES 0x0008
+#define ZFS_DEBUG_MODIFY 0x0010
+
+#ifdef ZFS_DEBUG
+extern void __dprintf(const char *file, const char *func,
+ int line, const char *fmt, ...);
+#define dprintf(...) \
+ if (zfs_flags & ZFS_DEBUG_DPRINTF) \
+ __dprintf(__FILE__, __func__, __LINE__, __VA_ARGS__)
+#else
+#define dprintf(...) ((void)0)
+#endif /* ZFS_DEBUG */
+
+extern void zfs_panic_recover(const char *fmt, ...);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* _SYS_ZFS_DEBUG_H */
--- /dev/null
+++ sys/cddl/contrib/opensolaris/uts/common/fs/zfs/sys/zio_compress.h
@@ -0,0 +1,82 @@
+/*
+ * CDDL HEADER START
+ *
+ * The contents of this file are subject to the terms of the
+ * Common Development and Distribution License (the "License").
+ * You may not use this file except in compliance with the License.
+ *
+ * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
+ * or http://www.opensolaris.org/os/licensing.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ *
+ * When distributing Covered Code, include this CDDL HEADER in each
+ * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
+ * If applicable, add the following below this CDDL HEADER, with the
+ * fields enclosed by brackets "[]" replaced with your own identifying
+ * information: Portions Copyright [yyyy] [name of copyright owner]
+ *
+ * CDDL HEADER END
+ */
+
+/*
+ * Copyright 2007 Sun Microsystems, Inc. All rights reserved.
+ * Use is subject to license terms.
+ */
+
+#ifndef _SYS_ZIO_COMPRESS_H
+#define _SYS_ZIO_COMPRESS_H
+
+#pragma ident "%Z%%M% %I% %E% SMI"
+
+#include <sys/zio.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/*
+ * Common signature for all zio compress/decompress functions.
+ */
+typedef size_t zio_compress_func_t(void *src, void *dst,
+ size_t s_len, size_t d_len, int);
+typedef int zio_decompress_func_t(void *src, void *dst,
+ size_t s_len, size_t d_len, int);
+
+/*
+ * Information about each compression function.
+ */
+typedef struct zio_compress_info {
+ zio_compress_func_t *ci_compress; /* compression function */
+ zio_decompress_func_t *ci_decompress; /* decompression function */
+ int ci_level; /* level parameter */
+ char *ci_name; /* algorithm name */
+} zio_compress_info_t;
+
+extern zio_compress_info_t zio_compress_table[ZIO_COMPRESS_FUNCTIONS];
+
+/*
+ * Compression routines.
+ */
+extern size_t lzjb_compress(void *src, void *dst, size_t s_len, size_t d_len,
+ int level);
+extern int lzjb_decompress(void *src, void *dst, size_t s_len, size_t d_len,
+ int level);
+extern size_t gzip_compress(void *src, void *dst, size_t s_len, size_t d_len,
+ int level);
+extern int gzip_decompress(void *src, void *dst, size_t s_len, size_t d_len,
+ int level);
+
+/*
+ * Compress and decompress data if necessary.
+ */
+extern int zio_compress_data(int cpfunc, void *src, uint64_t srcsize,
+ void **destp, uint64_t *destsizep, uint64_t *destbufsizep);
+extern int zio_decompress_data(int cpfunc, void *src, uint64_t srcsize,
+ void *dest, uint64_t destsize);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* _SYS_ZIO_COMPRESS_H */
--- /dev/null
+++ sys/cddl/contrib/opensolaris/uts/common/fs/zfs/sys/dmu_objset.h
@@ -0,0 +1,125 @@
+/*
+ * CDDL HEADER START
+ *
+ * The contents of this file are subject to the terms of the
+ * Common Development and Distribution License (the "License").
+ * You may not use this file except in compliance with the License.
+ *
+ * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
+ * or http://www.opensolaris.org/os/licensing.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ *
+ * When distributing Covered Code, include this CDDL HEADER in each
+ * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
+ * If applicable, add the following below this CDDL HEADER, with the
+ * fields enclosed by brackets "[]" replaced with your own identifying
+ * information: Portions Copyright [yyyy] [name of copyright owner]
+ *
+ * CDDL HEADER END
+ */
+/*
+ * Copyright 2007 Sun Microsystems, Inc. All rights reserved.
+ * Use is subject to license terms.
+ */
+
+#ifndef _SYS_DMU_OBJSET_H
+#define _SYS_DMU_OBJSET_H
+
+#pragma ident "%Z%%M% %I% %E% SMI"
+
+#include <sys/spa.h>
+#include <sys/arc.h>
+#include <sys/txg.h>
+#include <sys/zfs_context.h>
+#include <sys/dnode.h>
+#include <sys/zio.h>
+#include <sys/zil.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+struct dsl_dataset;
+struct dmu_tx;
+struct objset_impl;
+
+typedef struct objset_phys {
+ dnode_phys_t os_meta_dnode;
+ zil_header_t os_zil_header;
+ uint64_t os_type;
+ char os_pad[1024 - sizeof (dnode_phys_t) - sizeof (zil_header_t) -
+ sizeof (uint64_t)];
+} objset_phys_t;
+
+struct objset {
+ struct objset_impl *os;
+ int os_mode;
+};
+
+typedef struct objset_impl {
+ /* Immutable: */
+ struct dsl_dataset *os_dsl_dataset;
+ spa_t *os_spa;
+ arc_buf_t *os_phys_buf;
+ objset_phys_t *os_phys;
+ dnode_t *os_meta_dnode;
+ zilog_t *os_zil;
+ objset_t os;
+ uint8_t os_checksum; /* can change, under dsl_dir's locks */
+ uint8_t os_compress; /* can change, under dsl_dir's locks */
+ uint8_t os_copies; /* can change, under dsl_dir's locks */
+ uint8_t os_md_checksum;
+ uint8_t os_md_compress;
+
+ /* no lock needed: */
+ struct dmu_tx *os_synctx; /* XXX sketchy */
+ blkptr_t *os_rootbp;
+
+ /* Protected by os_obj_lock */
+ kmutex_t os_obj_lock;
+ uint64_t os_obj_next;
+
+ /* Protected by os_lock */
+ kmutex_t os_lock;
+ list_t os_dirty_dnodes[TXG_SIZE];
+ list_t os_free_dnodes[TXG_SIZE];
+ list_t os_dnodes;
+ list_t os_downgraded_dbufs;
+} objset_impl_t;
+
+#define DMU_META_DNODE_OBJECT 0
+
+/* called from zpl */
+int dmu_objset_open(const char *name, dmu_objset_type_t type, int mode,
+ objset_t **osp);
+void dmu_objset_close(objset_t *os);
+int dmu_objset_create(const char *name, dmu_objset_type_t type,
+ objset_t *clone_parent,
+ void (*func)(objset_t *os, void *arg, dmu_tx_t *tx), void *arg);
+int dmu_objset_destroy(const char *name);
+int dmu_objset_rollback(const char *name);
+int dmu_objset_snapshot(char *fsname, char *snapname, boolean_t recursive);
+void dmu_objset_stats(objset_t *os, nvlist_t *nv);
+void dmu_objset_fast_stat(objset_t *os, dmu_objset_stats_t *stat);
+void dmu_objset_space(objset_t *os, uint64_t *refdbytesp, uint64_t *availbytesp,
+ uint64_t *usedobjsp, uint64_t *availobjsp);
+uint64_t dmu_objset_fsid_guid(objset_t *os);
+int dmu_objset_find(char *name, int func(char *, void *), void *arg,
+ int flags);
+void dmu_objset_byteswap(void *buf, size_t size);
+int dmu_objset_evict_dbufs(objset_t *os, int try);
+
+/* called from dsl */
+void dmu_objset_sync(objset_impl_t *os, zio_t *zio, dmu_tx_t *tx);
+objset_impl_t *dmu_objset_create_impl(spa_t *spa, struct dsl_dataset *ds,
+ blkptr_t *bp, dmu_objset_type_t type, dmu_tx_t *tx);
+int dmu_objset_open_impl(spa_t *spa, struct dsl_dataset *ds, blkptr_t *bp,
+ objset_impl_t **osip);
+void dmu_objset_evict(struct dsl_dataset *ds, void *arg);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* _SYS_DMU_OBJSET_H */
--- /dev/null
+++ sys/cddl/contrib/opensolaris/uts/common/fs/zfs/sys/uberblock.h
@@ -0,0 +1,50 @@
+/*
+ * CDDL HEADER START
+ *
+ * The contents of this file are subject to the terms of the
+ * Common Development and Distribution License, Version 1.0 only
+ * (the "License"). You may not use this file except in compliance
+ * with the License.
+ *
+ * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
+ * or http://www.opensolaris.org/os/licensing.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ *
+ * When distributing Covered Code, include this CDDL HEADER in each
+ * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
+ * If applicable, add the following below this CDDL HEADER, with the
+ * fields enclosed by brackets "[]" replaced with your own identifying
+ * information: Portions Copyright [yyyy] [name of copyright owner]
+ *
+ * CDDL HEADER END
+ */
+/*
+ * Copyright 2005 Sun Microsystems, Inc. All rights reserved.
+ * Use is subject to license terms.
+ */
+
+#ifndef _SYS_UBERBLOCK_H
+#define _SYS_UBERBLOCK_H
+
+#pragma ident "%Z%%M% %I% %E% SMI"
+
+#include <sys/spa.h>
+#include <sys/vdev.h>
+#include <sys/zio.h>
+#include <sys/zio_checksum.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+typedef struct uberblock uberblock_t;
+
+extern int uberblock_verify(uberblock_t *ub);
+extern int uberblock_update(uberblock_t *ub, vdev_t *rvd, uint64_t txg);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* _SYS_UBERBLOCK_H */
--- /dev/null
+++ sys/cddl/contrib/opensolaris/uts/common/fs/zfs/sys/dsl_pool.h
@@ -0,0 +1,82 @@
+/*
+ * CDDL HEADER START
+ *
+ * The contents of this file are subject to the terms of the
+ * Common Development and Distribution License (the "License").
+ * You may not use this file except in compliance with the License.
+ *
+ * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
+ * or http://www.opensolaris.org/os/licensing.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ *
+ * When distributing Covered Code, include this CDDL HEADER in each
+ * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
+ * If applicable, add the following below this CDDL HEADER, with the
+ * fields enclosed by brackets "[]" replaced with your own identifying
+ * information: Portions Copyright [yyyy] [name of copyright owner]
+ *
+ * CDDL HEADER END
+ */
+/*
+ * Copyright 2006 Sun Microsystems, Inc. All rights reserved.
+ * Use is subject to license terms.
+ */
+
+#ifndef _SYS_DSL_POOL_H
+#define _SYS_DSL_POOL_H
+
+#pragma ident "%Z%%M% %I% %E% SMI"
+
+#include <sys/spa.h>
+#include <sys/txg.h>
+#include <sys/txg_impl.h>
+#include <sys/zfs_context.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+struct objset;
+struct dsl_dir;
+
+typedef struct dsl_pool {
+ /* Immutable */
+ spa_t *dp_spa;
+ struct objset *dp_meta_objset;
+ struct dsl_dir *dp_root_dir;
+ struct dsl_dir *dp_mos_dir;
+ uint64_t dp_root_dir_obj;
+
+ /* No lock needed - sync context only */
+ blkptr_t dp_meta_rootbp;
+ list_t dp_synced_objsets;
+
+ /* Has its own locking */
+ tx_state_t dp_tx;
+ txg_list_t dp_dirty_datasets;
+ txg_list_t dp_dirty_dirs;
+ txg_list_t dp_sync_tasks;
+
+ /*
+ * Protects administrative changes (properties, namespace)
+ * It is only held for write in syncing context. Therefore
+ * syncing context does not need to ever have it for read, since
+ * nobody else could possibly have it for write.
+ */
+ krwlock_t dp_config_rwlock;
+} dsl_pool_t;
+
+int dsl_pool_open(spa_t *spa, uint64_t txg, dsl_pool_t **dpp);
+void dsl_pool_close(dsl_pool_t *dp);
+dsl_pool_t *dsl_pool_create(spa_t *spa, uint64_t txg);
+void dsl_pool_sync(dsl_pool_t *dp, uint64_t txg);
+void dsl_pool_zil_clean(dsl_pool_t *dp);
+int dsl_pool_sync_context(dsl_pool_t *dp);
+uint64_t dsl_pool_adjustedsize(dsl_pool_t *dp, boolean_t netfree);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* _SYS_DSL_POOL_H */
--- /dev/null
+++ sys/cddl/contrib/opensolaris/uts/common/fs/zfs/sys/zfs_znode.h
@@ -0,0 +1,298 @@
+/*
+ * CDDL HEADER START
+ *
+ * The contents of this file are subject to the terms of the
+ * Common Development and Distribution License (the "License").
+ * You may not use this file except in compliance with the License.
+ *
+ * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
+ * or http://www.opensolaris.org/os/licensing.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ *
+ * When distributing Covered Code, include this CDDL HEADER in each
+ * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
+ * If applicable, add the following below this CDDL HEADER, with the
+ * fields enclosed by brackets "[]" replaced with your own identifying
+ * information: Portions Copyright [yyyy] [name of copyright owner]
+ *
+ * CDDL HEADER END
+ */
+/*
+ * Copyright 2007 Sun Microsystems, Inc. All rights reserved.
+ * Use is subject to license terms.
+ */
+
+#ifndef _SYS_FS_ZFS_ZNODE_H
+#define _SYS_FS_ZFS_ZNODE_H
+
+#pragma ident "%Z%%M% %I% %E% SMI"
+
+#ifdef _KERNEL
+#include <sys/list.h>
+#include <sys/dmu.h>
+#include <sys/zfs_vfsops.h>
+#endif
+#include <sys/zfs_acl.h>
+#include <sys/zil.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/*
+ * Define special zfs pflags
+ */
+#define ZFS_XATTR 0x1 /* is an extended attribute */
+#define ZFS_INHERIT_ACE 0x2 /* ace has inheritable ACEs */
+#define ZFS_ACL_TRIVIAL 0x4 /* files ACL is trivial */
+
+#define MASTER_NODE_OBJ 1
+
+/*
+ * special attributes for master node.
+ */
+
+#define ZFS_FSID "FSID"
+#define ZFS_UNLINKED_SET "DELETE_QUEUE"
+#define ZFS_ROOT_OBJ "ROOT"
+#define ZPL_VERSION_OBJ "VERSION"
+#define ZFS_PROP_BLOCKPERPAGE "BLOCKPERPAGE"
+#define ZFS_PROP_NOGROWBLOCKS "NOGROWBLOCKS"
+
+#define ZFS_FLAG_BLOCKPERPAGE 0x1
+#define ZFS_FLAG_NOGROWBLOCKS 0x2
+
+/*
+ * ZPL version - rev'd whenever an incompatible on-disk format change
+ * occurs. Independent of SPA/DMU/ZAP versioning.
+ */
+
+#define ZPL_VERSION 1ULL
+
+#define ZFS_MAX_BLOCKSIZE (SPA_MAXBLOCKSIZE)
+
+/* Path component length */
+/*
+ * The generic fs code uses MAXNAMELEN to represent
+ * what the largest component length is. Unfortunately,
+ * this length includes the terminating NULL. ZFS needs
+ * to tell the users via pathconf() and statvfs() what the
+ * true maximum length of a component is, excluding the NULL.
+ */
+#define ZFS_MAXNAMELEN (MAXNAMELEN - 1)
+
+/*
+ * The directory entry has the type (currently unused on Solaris) in the
+ * top 4 bits, and the object number in the low 48 bits. The "middle"
+ * 12 bits are unused.
+ */
+#define ZFS_DIRENT_TYPE(de) BF64_GET(de, 60, 4)
+#define ZFS_DIRENT_OBJ(de) BF64_GET(de, 0, 48)
+#define ZFS_DIRENT_MAKE(type, obj) (((uint64_t)type << 60) | obj)
+
+
+/*
+ * This is the persistent portion of the znode. It is stored
+ * in the "bonus buffer" of the file. Short symbolic links
+ * are also stored in the bonus buffer.
+ */
+typedef struct znode_phys {
+ uint64_t zp_atime[2]; /* 0 - last file access time */
+ uint64_t zp_mtime[2]; /* 16 - last file modification time */
+ uint64_t zp_ctime[2]; /* 32 - last file change time */
+ uint64_t zp_crtime[2]; /* 48 - creation time */
+ uint64_t zp_gen; /* 64 - generation (txg of creation) */
+ uint64_t zp_mode; /* 72 - file mode bits */
+ uint64_t zp_size; /* 80 - size of file */
+ uint64_t zp_parent; /* 88 - directory parent (`..') */
+ uint64_t zp_links; /* 96 - number of links to file */
+ uint64_t zp_xattr; /* 104 - DMU object for xattrs */
+ uint64_t zp_rdev; /* 112 - dev_t for VBLK & VCHR files */
+ uint64_t zp_flags; /* 120 - persistent flags */
+ uint64_t zp_uid; /* 128 - file owner */
+ uint64_t zp_gid; /* 136 - owning group */
+ uint64_t zp_pad[4]; /* 144 - future */
+ zfs_znode_acl_t zp_acl; /* 176 - 263 ACL */
+ /*
+ * Data may pad out any remaining bytes in the znode buffer, eg:
+ *
+ * |<---------------------- dnode_phys (512) ------------------------>|
+ * |<-- dnode (192) --->|<----------- "bonus" buffer (320) ---------->|
+ * |<---- znode (264) ---->|<---- data (56) ---->|
+ *
+ * At present, we only use this space to store symbolic links.
+ */
+} znode_phys_t;
+
+/*
+ * Directory entry locks control access to directory entries.
+ * They are used to protect creates, deletes, and renames.
+ * Each directory znode has a mutex and a list of locked names.
+ */
+#ifdef _KERNEL
+typedef struct zfs_dirlock {
+ char *dl_name; /* directory entry being locked */
+ uint32_t dl_sharecnt; /* 0 if exclusive, > 0 if shared */
+ uint16_t dl_namesize; /* set if dl_name was allocated */
+ kcondvar_t dl_cv; /* wait for entry to be unlocked */
+ struct znode *dl_dzp; /* directory znode */
+ struct zfs_dirlock *dl_next; /* next in z_dirlocks list */
+} zfs_dirlock_t;
+
+typedef struct znode {
+ struct zfsvfs *z_zfsvfs;
+ vnode_t *z_vnode;
+ uint64_t z_id; /* object ID for this znode */
+ kmutex_t z_lock; /* znode modification lock */
+ krwlock_t z_map_lock; /* page map lock */
+ krwlock_t z_parent_lock; /* parent lock for directories */
+ krwlock_t z_name_lock; /* "master" lock for dirent locks */
+ zfs_dirlock_t *z_dirlocks; /* directory entry lock list */
+ kmutex_t z_range_lock; /* protects changes to z_range_avl */
+ avl_tree_t z_range_avl; /* avl tree of file range locks */
+ uint8_t z_unlinked; /* file has been unlinked */
+ uint8_t z_atime_dirty; /* atime needs to be synced */
+ uint8_t z_dbuf_held; /* Is z_dbuf already held? */
+ uint8_t z_zn_prefetch; /* Prefetch znodes? */
+ uint_t z_blksz; /* block size in bytes */
+ uint_t z_seq; /* modification sequence number */
+ uint64_t z_mapcnt; /* number of pages mapped to file */
+ uint64_t z_last_itx; /* last ZIL itx on this znode */
+ uint32_t z_sync_cnt; /* synchronous open count */
+ kmutex_t z_acl_lock; /* acl data lock */
+ list_node_t z_link_node; /* all znodes in fs link */
+ struct lockf *z_lockf; /* Head of byte-level lock list. */
+ /*
+ * These are dmu managed fields.
+ */
+ znode_phys_t *z_phys; /* pointer to persistent znode */
+ dmu_buf_t *z_dbuf; /* buffer containing the z_phys */
+} znode_t;
+
+
+/*
+ * Range locking rules
+ * --------------------
+ * 1. When truncating a file (zfs_create, zfs_setattr, zfs_space) the whole
+ * file range needs to be locked as RL_WRITER. Only then can the pages be
+ * freed etc and zp_size reset. zp_size must be set within range lock.
+ * 2. For writes and punching holes (zfs_write & zfs_space) just the range
+ * being written or freed needs to be locked as RL_WRITER.
+ * Multiple writes at the end of the file must coordinate zp_size updates
+ * to ensure data isn't lost. A compare and swap loop is currently used
+ * to ensure the file size is at least the offset last written.
+ * 3. For reads (zfs_read, zfs_get_data & zfs_putapage) just the range being
+ * read needs to be locked as RL_READER. A check against zp_size can then
+ * be made for reading beyond end of file.
+ */
+
+/*
+ * Convert between znode pointers and vnode pointers
+ */
+#define ZTOV(ZP) ((ZP)->z_vnode)
+#define VTOZ(VP) ((znode_t *)(VP)->v_data)
+
+/*
+ * ZFS_ENTER() is called on entry to each ZFS vnode and vfs operation.
+ * ZFS_EXIT() must be called before exitting the vop.
+ */
+#define ZFS_ENTER(zfsvfs) \
+ { \
+ atomic_add_32(&(zfsvfs)->z_op_cnt, 1); \
+ if ((zfsvfs)->z_unmounted1) { \
+ ZFS_EXIT(zfsvfs); \
+ return (EIO); \
+ } \
+ }
+#define ZFS_EXIT(zfsvfs) atomic_add_32(&(zfsvfs)->z_op_cnt, -1)
+
+/*
+ * Macros for dealing with dmu_buf_hold
+ */
+#define ZFS_OBJ_HASH(obj_num) (obj_num & (ZFS_OBJ_MTX_SZ - 1))
+#define ZFS_OBJ_MUTEX(zp) \
+ (&zp->z_zfsvfs->z_hold_mtx[ZFS_OBJ_HASH(zp->z_id)])
+#define ZFS_OBJ_HOLD_ENTER(zfsvfs, obj_num) \
+ mutex_enter(&zfsvfs->z_hold_mtx[ZFS_OBJ_HASH(obj_num)]);
+
+#define ZFS_OBJ_HOLD_EXIT(zfsvfs, obj_num) \
+ mutex_exit(&zfsvfs->z_hold_mtx[ZFS_OBJ_HASH(obj_num)])
+
+/*
+ * Macros to encode/decode ZFS stored time values from/to struct timespec
+ */
+#define ZFS_TIME_ENCODE(tp, stmp) \
+{ \
+ stmp[0] = (uint64_t)(tp)->tv_sec; \
+ stmp[1] = (uint64_t)(tp)->tv_nsec; \
+}
+
+#define ZFS_TIME_DECODE(tp, stmp) \
+{ \
+ (tp)->tv_sec = (time_t)stmp[0]; \
+ (tp)->tv_nsec = (long)stmp[1]; \
+}
+
+/*
+ * Timestamp defines
+ */
+#define ACCESSED (AT_ATIME)
+#define STATE_CHANGED (AT_CTIME)
+#define CONTENT_MODIFIED (AT_MTIME | AT_CTIME)
+
+#define ZFS_ACCESSTIME_STAMP(zfsvfs, zp) \
+ if ((zfsvfs)->z_atime && !((zfsvfs)->z_vfs->vfs_flag & VFS_RDONLY)) \
+ zfs_time_stamper(zp, ACCESSED, NULL)
+
+extern int zfs_init_fs(zfsvfs_t *, znode_t **, cred_t *);
+extern void zfs_set_dataprop(objset_t *);
+extern void zfs_create_fs(objset_t *os, cred_t *cr, dmu_tx_t *tx);
+extern void zfs_time_stamper(znode_t *, uint_t, dmu_tx_t *);
+extern void zfs_time_stamper_locked(znode_t *, uint_t, dmu_tx_t *);
+extern void zfs_grow_blocksize(znode_t *, uint64_t, dmu_tx_t *);
+extern int zfs_freesp(znode_t *, uint64_t, uint64_t, int, boolean_t);
+extern void zfs_znode_init(void);
+extern void zfs_znode_fini(void);
+extern int zfs_zget(zfsvfs_t *, uint64_t, znode_t **);
+extern void zfs_zinactive(znode_t *);
+extern void zfs_znode_delete(znode_t *, dmu_tx_t *);
+extern void zfs_znode_free(znode_t *);
+extern void zfs_remove_op_tables();
+extern int zfs_create_op_tables();
+extern dev_t zfs_cmpldev(uint64_t);
+
+extern void zfs_log_create(zilog_t *zilog, dmu_tx_t *tx, int txtype,
+ znode_t *dzp, znode_t *zp, char *name);
+extern void zfs_log_remove(zilog_t *zilog, dmu_tx_t *tx, int txtype,
+ znode_t *dzp, char *name);
+extern void zfs_log_link(zilog_t *zilog, dmu_tx_t *tx, int txtype,
+ znode_t *dzp, znode_t *zp, char *name);
+extern void zfs_log_symlink(zilog_t *zilog, dmu_tx_t *tx, int txtype,
+ znode_t *dzp, znode_t *zp, char *name, char *link);
+extern void zfs_log_rename(zilog_t *zilog, dmu_tx_t *tx, int txtype,
+ znode_t *sdzp, char *sname, znode_t *tdzp, char *dname, znode_t *szp);
+extern void zfs_log_write(zilog_t *zilog, dmu_tx_t *tx, int txtype,
+ znode_t *zp, offset_t off, ssize_t len, int ioflag);
+extern void zfs_log_truncate(zilog_t *zilog, dmu_tx_t *tx, int txtype,
+ znode_t *zp, uint64_t off, uint64_t len);
+extern void zfs_log_setattr(zilog_t *zilog, dmu_tx_t *tx, int txtype,
+ znode_t *zp, vattr_t *vap, uint_t mask_applied);
+#ifndef ZFS_NO_ACL
+extern void zfs_log_acl(zilog_t *zilog, dmu_tx_t *tx, int txtype,
+ znode_t *zp, int aclcnt, ace_t *z_ace);
+#endif
+
+extern zil_get_data_t zfs_get_data;
+extern zil_replay_func_t *zfs_replay_vector[TX_MAX_TYPE];
+extern int zfsfstype;
+
+#endif /* _KERNEL */
+
+extern int zfs_obj_to_path(objset_t *osp, uint64_t obj, char *buf, int len);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* _SYS_FS_ZFS_ZNODE_H */
--- /dev/null
+++ sys/cddl/contrib/opensolaris/uts/common/fs/zfs/sys/zap_impl.h
@@ -0,0 +1,204 @@
+/*
+ * CDDL HEADER START
+ *
+ * The contents of this file are subject to the terms of the
+ * Common Development and Distribution License (the "License").
+ * You may not use this file except in compliance with the License.
+ *
+ * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
+ * or http://www.opensolaris.org/os/licensing.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ *
+ * When distributing Covered Code, include this CDDL HEADER in each
+ * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
+ * If applicable, add the following below this CDDL HEADER, with the
+ * fields enclosed by brackets "[]" replaced with your own identifying
+ * information: Portions Copyright [yyyy] [name of copyright owner]
+ *
+ * CDDL HEADER END
+ */
+/*
+ * Copyright 2006 Sun Microsystems, Inc. All rights reserved.
+ * Use is subject to license terms.
+ */
+
+#ifndef _SYS_ZAP_IMPL_H
+#define _SYS_ZAP_IMPL_H
+
+#pragma ident "%Z%%M% %I% %E% SMI"
+
+#include <sys/zap.h>
+#include <sys/zfs_context.h>
+#include <sys/avl.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+extern int fzap_default_block_shift;
+
+#define ZAP_MAGIC 0x2F52AB2ABULL
+
+#define FZAP_BLOCK_SHIFT(zap) ((zap)->zap_f.zap_block_shift)
+
+#define ZAP_MAXCD (uint32_t)(-1)
+#define ZAP_HASHBITS 28
+#define MZAP_ENT_LEN 64
+#define MZAP_NAME_LEN (MZAP_ENT_LEN - 8 - 4 - 2)
+#define MZAP_MAX_BLKSHIFT SPA_MAXBLOCKSHIFT
+#define MZAP_MAX_BLKSZ (1 << MZAP_MAX_BLKSHIFT)
+
+typedef struct mzap_ent_phys {
+ uint64_t mze_value;
+ uint32_t mze_cd;
+ uint16_t mze_pad; /* in case we want to chain them someday */
+ char mze_name[MZAP_NAME_LEN];
+} mzap_ent_phys_t;
+
+typedef struct mzap_phys {
+ uint64_t mz_block_type; /* ZBT_MICRO */
+ uint64_t mz_salt;
+ uint64_t mz_pad[6];
+ mzap_ent_phys_t mz_chunk[1];
+ /* actually variable size depending on block size */
+} mzap_phys_t;
+
+typedef struct mzap_ent {
+ avl_node_t mze_node;
+ int mze_chunkid;
+ uint64_t mze_hash;
+ mzap_ent_phys_t mze_phys;
+} mzap_ent_t;
+
+
+/*
+ * The (fat) zap is stored in one object. It is an array of
+ * 1<<FZAP_BLOCK_SHIFT byte blocks. The layout looks like one of:
+ *
+ * ptrtbl fits in first block:
+ * [zap_phys_t zap_ptrtbl_shift < 6] [zap_leaf_t] ...
+ *
+ * ptrtbl too big for first block:
+ * [zap_phys_t zap_ptrtbl_shift >= 6] [zap_leaf_t] [ptrtbl] ...
+ *
+ */
+
+struct dmu_buf;
+struct zap_leaf;
+
+#define ZBT_LEAF ((1ULL << 63) + 0)
+#define ZBT_HEADER ((1ULL << 63) + 1)
+#define ZBT_MICRO ((1ULL << 63) + 3)
+/* any other values are ptrtbl blocks */
+
+/*
+ * the embedded pointer table takes up half a block:
+ * block size / entry size (2^3) / 2
+ */
+#define ZAP_EMBEDDED_PTRTBL_SHIFT(zap) (FZAP_BLOCK_SHIFT(zap) - 3 - 1)
+
+/*
+ * The embedded pointer table starts half-way through the block. Since
+ * the pointer table itself is half the block, it starts at (64-bit)
+ * word number (1<<ZAP_EMBEDDED_PTRTBL_SHIFT(zap)).
+ */
+#define ZAP_EMBEDDED_PTRTBL_ENT(zap, idx) \
+ ((uint64_t *)(zap)->zap_f.zap_phys) \
+ [(idx) + (1<<ZAP_EMBEDDED_PTRTBL_SHIFT(zap))]
+
+/*
+ * TAKE NOTE:
+ * If zap_phys_t is modified, zap_byteswap() must be modified.
+ */
+typedef struct zap_phys {
+ uint64_t zap_block_type; /* ZBT_HEADER */
+ uint64_t zap_magic; /* ZAP_MAGIC */
+
+ struct zap_table_phys {
+ uint64_t zt_blk; /* starting block number */
+ uint64_t zt_numblks; /* number of blocks */
+ uint64_t zt_shift; /* bits to index it */
+ uint64_t zt_nextblk; /* next (larger) copy start block */
+ uint64_t zt_blks_copied; /* number source blocks copied */
+ } zap_ptrtbl;
+
+ uint64_t zap_freeblk; /* the next free block */
+ uint64_t zap_num_leafs; /* number of leafs */
+ uint64_t zap_num_entries; /* number of entries */
+ uint64_t zap_salt; /* salt to stir into hash function */
+ /*
+ * This structure is followed by padding, and then the embedded
+ * pointer table. The embedded pointer table takes up second
+ * half of the block. It is accessed using the
+ * ZAP_EMBEDDED_PTRTBL_ENT() macro.
+ */
+} zap_phys_t;
+
+typedef struct zap_table_phys zap_table_phys_t;
+
+typedef struct zap {
+ objset_t *zap_objset;
+ uint64_t zap_object;
+ struct dmu_buf *zap_dbuf;
+ krwlock_t zap_rwlock;
+ int zap_ismicro;
+ uint64_t zap_salt;
+ union {
+ struct {
+ zap_phys_t *zap_phys;
+
+ /*
+ * zap_num_entries_mtx protects
+ * zap_num_entries
+ */
+ kmutex_t zap_num_entries_mtx;
+ int zap_block_shift;
+ } zap_fat;
+ struct {
+ mzap_phys_t *zap_phys;
+ int16_t zap_num_entries;
+ int16_t zap_num_chunks;
+ int16_t zap_alloc_next;
+ avl_tree_t zap_avl;
+ } zap_micro;
+ } zap_u;
+} zap_t;
+
+#define zap_f zap_u.zap_fat
+#define zap_m zap_u.zap_micro
+
+uint64_t zap_hash(zap_t *zap, const char *name);
+int zap_lockdir(objset_t *os, uint64_t obj, dmu_tx_t *tx,
+ krw_t lti, int fatreader, zap_t **zapp);
+void zap_unlockdir(zap_t *zap);
+void zap_evict(dmu_buf_t *db, void *vmzap);
+
+#define ZAP_HASH_IDX(hash, n) (((n) == 0) ? 0 : ((hash) >> (64 - (n))))
+
+void fzap_byteswap(void *buf, size_t size);
+int fzap_count(zap_t *zap, uint64_t *count);
+int fzap_lookup(zap_t *zap, const char *name,
+ uint64_t integer_size, uint64_t num_integers, void *buf);
+int fzap_add(zap_t *zap, const char *name,
+ uint64_t integer_size, uint64_t num_integers,
+ const void *val, dmu_tx_t *tx);
+int fzap_update(zap_t *zap, const char *name,
+ int integer_size, uint64_t num_integers, const void *val, dmu_tx_t *tx);
+int fzap_length(zap_t *zap, const char *name,
+ uint64_t *integer_size, uint64_t *num_integers);
+int fzap_remove(zap_t *zap, const char *name, dmu_tx_t *tx);
+int fzap_cursor_retrieve(zap_t *zap, zap_cursor_t *zc, zap_attribute_t *za);
+void fzap_get_stats(zap_t *zap, zap_stats_t *zs);
+void zap_put_leaf(struct zap_leaf *l);
+
+int fzap_add_cd(zap_t *zap, const char *name,
+ uint64_t integer_size, uint64_t num_integers,
+ const void *val, uint32_t cd, dmu_tx_t *tx);
+void fzap_upgrade(zap_t *zap, dmu_tx_t *tx);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* _SYS_ZAP_IMPL_H */
--- /dev/null
+++ sys/cddl/contrib/opensolaris/uts/common/fs/zfs/sys/zfs_dir.h
@@ -0,0 +1,71 @@
+/*
+ * CDDL HEADER START
+ *
+ * The contents of this file are subject to the terms of the
+ * Common Development and Distribution License (the "License").
+ * You may not use this file except in compliance with the License.
+ *
+ * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
+ * or http://www.opensolaris.org/os/licensing.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ *
+ * When distributing Covered Code, include this CDDL HEADER in each
+ * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
+ * If applicable, add the following below this CDDL HEADER, with the
+ * fields enclosed by brackets "[]" replaced with your own identifying
+ * information: Portions Copyright [yyyy] [name of copyright owner]
+ *
+ * CDDL HEADER END
+ */
+/*
+ * Copyright 2007 Sun Microsystems, Inc. All rights reserved.
+ * Use is subject to license terms.
+ */
+
+#ifndef _SYS_FS_ZFS_DIR_H
+#define _SYS_FS_ZFS_DIR_H
+
+#pragma ident "%Z%%M% %I% %E% SMI"
+
+#include <sys/dmu.h>
+#include <sys/zfs_znode.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/* zfs_dirent_lock() flags */
+#define ZNEW 0x0001 /* entry should not exist */
+#define ZEXISTS 0x0002 /* entry should exist */
+#define ZSHARED 0x0004 /* shared access (zfs_dirlook()) */
+#define ZXATTR 0x0008 /* we want the xattr dir */
+#define ZRENAMING 0x0010 /* znode is being renamed */
+
+/* mknode flags */
+#define IS_ROOT_NODE 0x01 /* create a root node */
+#define IS_XATTR 0x02 /* create an extended attribute node */
+#define IS_REPLAY 0x04 /* we are replaying intent log */
+
+extern int zfs_dirent_lock(zfs_dirlock_t **, znode_t *, char *, znode_t **,
+ int);
+extern void zfs_dirent_unlock(zfs_dirlock_t *);
+extern int zfs_link_create(zfs_dirlock_t *, znode_t *, dmu_tx_t *, int);
+extern int zfs_link_destroy(zfs_dirlock_t *, znode_t *, dmu_tx_t *, int,
+ boolean_t *);
+extern int zfs_dirlook(znode_t *, char *, vnode_t **);
+extern void zfs_mknode(znode_t *, vattr_t *, uint64_t *,
+ dmu_tx_t *, cred_t *, uint_t, znode_t **, int);
+extern void zfs_rmnode(znode_t *);
+extern boolean_t zfs_dirempty(znode_t *);
+extern void zfs_unlinked_add(znode_t *, dmu_tx_t *);
+extern void zfs_unlinked_drain(zfsvfs_t *zfsvfs);
+extern int zfs_sticky_remove_access(znode_t *, znode_t *, cred_t *cr);
+extern int zfs_get_xattrdir(znode_t *, vnode_t **, cred_t *, int);
+extern int zfs_make_xattrdir(znode_t *, vattr_t *, vnode_t **, cred_t *);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* _SYS_FS_ZFS_DIR_H */
--- /dev/null
+++ sys/cddl/contrib/opensolaris/uts/common/fs/zfs/sys/vdev_impl.h
@@ -0,0 +1,298 @@
+/*
+ * CDDL HEADER START
+ *
+ * The contents of this file are subject to the terms of the
+ * Common Development and Distribution License (the "License").
+ * You may not use this file except in compliance with the License.
+ *
+ * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
+ * or http://www.opensolaris.org/os/licensing.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ *
+ * When distributing Covered Code, include this CDDL HEADER in each
+ * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
+ * If applicable, add the following below this CDDL HEADER, with the
+ * fields enclosed by brackets "[]" replaced with your own identifying
+ * information: Portions Copyright [yyyy] [name of copyright owner]
+ *
+ * CDDL HEADER END
+ */
+/*
+ * Copyright 2007 Sun Microsystems, Inc. All rights reserved.
+ * Use is subject to license terms.
+ */
+
+#ifndef _SYS_VDEV_IMPL_H
+#define _SYS_VDEV_IMPL_H
+
+#pragma ident "%Z%%M% %I% %E% SMI"
+
+#include <sys/avl.h>
+#include <sys/dmu.h>
+#include <sys/metaslab.h>
+#include <sys/nvpair.h>
+#include <sys/space_map.h>
+#include <sys/vdev.h>
+#include <sys/dkio.h>
+#include <sys/uberblock_impl.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/*
+ * Virtual device descriptors.
+ *
+ * All storage pool operations go through the virtual device framework,
+ * which provides data replication and I/O scheduling.
+ */
+
+/*
+ * Forward declarations that lots of things need.
+ */
+typedef struct vdev_queue vdev_queue_t;
+typedef struct vdev_cache vdev_cache_t;
+typedef struct vdev_cache_entry vdev_cache_entry_t;
+
+/*
+ * Virtual device operations
+ */
+typedef int vdev_open_func_t(vdev_t *vd, uint64_t *size, uint64_t *ashift);
+typedef void vdev_close_func_t(vdev_t *vd);
+typedef uint64_t vdev_asize_func_t(vdev_t *vd, uint64_t psize);
+typedef void vdev_io_start_func_t(zio_t *zio);
+typedef void vdev_io_done_func_t(zio_t *zio);
+typedef void vdev_state_change_func_t(vdev_t *vd, int, int);
+
+typedef struct vdev_ops {
+ vdev_open_func_t *vdev_op_open;
+ vdev_close_func_t *vdev_op_close;
+ vdev_asize_func_t *vdev_op_asize;
+ vdev_io_start_func_t *vdev_op_io_start;
+ vdev_io_done_func_t *vdev_op_io_done;
+ vdev_state_change_func_t *vdev_op_state_change;
+ char vdev_op_type[16];
+ boolean_t vdev_op_leaf;
+} vdev_ops_t;
+
+/*
+ * Virtual device properties
+ */
+struct vdev_cache_entry {
+ char *ve_data;
+ uint64_t ve_offset;
+ uint64_t ve_lastused;
+ avl_node_t ve_offset_node;
+ avl_node_t ve_lastused_node;
+ uint32_t ve_hits;
+ uint16_t ve_missed_update;
+ zio_t *ve_fill_io;
+};
+
+struct vdev_cache {
+ avl_tree_t vc_offset_tree;
+ avl_tree_t vc_lastused_tree;
+ kmutex_t vc_lock;
+};
+
+struct vdev_queue {
+ avl_tree_t vq_deadline_tree;
+ avl_tree_t vq_read_tree;
+ avl_tree_t vq_write_tree;
+ avl_tree_t vq_pending_tree;
+ kmutex_t vq_lock;
+};
+
+/*
+ * Virtual device descriptor
+ */
+struct vdev {
+ /*
+ * Common to all vdev types.
+ */
+ uint64_t vdev_id; /* child number in vdev parent */
+ uint64_t vdev_guid; /* unique ID for this vdev */
+ uint64_t vdev_guid_sum; /* self guid + all child guids */
+ uint64_t vdev_asize; /* allocatable device capacity */
+ uint64_t vdev_ashift; /* block alignment shift */
+ uint64_t vdev_state; /* see VDEV_STATE_* #defines */
+ uint64_t vdev_prevstate; /* used when reopening a vdev */
+ vdev_ops_t *vdev_ops; /* vdev operations */
+ spa_t *vdev_spa; /* spa for this vdev */
+ void *vdev_tsd; /* type-specific data */
+ vdev_t *vdev_top; /* top-level vdev */
+ vdev_t *vdev_parent; /* parent vdev */
+ vdev_t **vdev_child; /* array of children */
+ uint64_t vdev_children; /* number of children */
+ space_map_t vdev_dtl_map; /* dirty time log in-core state */
+ space_map_t vdev_dtl_scrub; /* DTL for scrub repair writes */
+ vdev_stat_t vdev_stat; /* virtual device statistics */
+
+ /*
+ * Top-level vdev state.
+ */
+ uint64_t vdev_ms_array; /* metaslab array object */
+ uint64_t vdev_ms_shift; /* metaslab size shift */
+ uint64_t vdev_ms_count; /* number of metaslabs */
+ metaslab_group_t *vdev_mg; /* metaslab group */
+ metaslab_t **vdev_ms; /* metaslab array */
+ txg_list_t vdev_ms_list; /* per-txg dirty metaslab lists */
+ txg_list_t vdev_dtl_list; /* per-txg dirty DTL lists */
+ txg_node_t vdev_txg_node; /* per-txg dirty vdev linkage */
+ uint8_t vdev_reopen_wanted; /* async reopen wanted? */
+ list_node_t vdev_dirty_node; /* config dirty list */
+ uint64_t vdev_deflate_ratio; /* deflation ratio (x512) */
+
+ /*
+ * Leaf vdev state.
+ */
+ uint64_t vdev_psize; /* physical device capacity */
+ space_map_obj_t vdev_dtl; /* dirty time log on-disk state */
+ txg_node_t vdev_dtl_node; /* per-txg dirty DTL linkage */
+ uint64_t vdev_wholedisk; /* true if this is a whole disk */
+ uint64_t vdev_offline; /* device taken offline? */
+ uint64_t vdev_nparity; /* number of parity devices for raidz */
+ char *vdev_path; /* vdev path (if any) */
+ char *vdev_devid; /* vdev devid (if any) */
+ uint64_t vdev_fault_arg; /* fault injection paramater */
+ int vdev_fault_mask; /* zio types to fault */
+ uint8_t vdev_fault_mode; /* fault injection mode */
+ uint8_t vdev_cache_active; /* vdev_cache and vdev_queue */
+ uint8_t vdev_tmpoffline; /* device taken offline temporarily? */
+ uint8_t vdev_detached; /* device detached? */
+ uint64_t vdev_isspare; /* was a hot spare */
+ vdev_queue_t vdev_queue; /* I/O deadline schedule queue */
+ vdev_cache_t vdev_cache; /* physical block cache */
+ uint64_t vdev_not_present; /* not present during import */
+ hrtime_t vdev_last_try; /* last reopen time */
+ boolean_t vdev_nowritecache; /* true if flushwritecache failed */
+
+ /*
+ * For DTrace to work in userland (libzpool) context, these fields must
+ * remain at the end of the structure. DTrace will use the kernel's
+ * CTF definition for 'struct vdev', and since the size of a kmutex_t is
+ * larger in userland, the offsets for the rest fields would be
+ * incorrect.
+ */
+ kmutex_t vdev_dtl_lock; /* vdev_dtl_{map,resilver} */
+ kmutex_t vdev_stat_lock; /* vdev_stat */
+};
+
+#define VDEV_SKIP_SIZE (8 << 10)
+#define VDEV_BOOT_HEADER_SIZE (8 << 10)
+#define VDEV_PHYS_SIZE (112 << 10)
+#define VDEV_UBERBLOCK_RING (128 << 10)
+
+#define VDEV_UBERBLOCK_SHIFT(vd) \
+ MAX((vd)->vdev_top->vdev_ashift, UBERBLOCK_SHIFT)
+#define VDEV_UBERBLOCK_COUNT(vd) \
+ (VDEV_UBERBLOCK_RING >> VDEV_UBERBLOCK_SHIFT(vd))
+#define VDEV_UBERBLOCK_OFFSET(vd, n) \
+ offsetof(vdev_label_t, vl_uberblock[(n) << VDEV_UBERBLOCK_SHIFT(vd)])
+#define VDEV_UBERBLOCK_SIZE(vd) (1ULL << VDEV_UBERBLOCK_SHIFT(vd))
+
+/* ZFS boot block */
+#define VDEV_BOOT_MAGIC 0x2f5b007b10cULL
+#define VDEV_BOOT_VERSION 1 /* version number */
+
+typedef struct vdev_boot_header {
+ uint64_t vb_magic; /* VDEV_BOOT_MAGIC */
+ uint64_t vb_version; /* VDEV_BOOT_VERSION */
+ uint64_t vb_offset; /* start offset (bytes) */
+ uint64_t vb_size; /* size (bytes) */
+ char vb_pad[VDEV_BOOT_HEADER_SIZE - 4 * sizeof (uint64_t)];
+} vdev_boot_header_t;
+
+typedef struct vdev_phys {
+ char vp_nvlist[VDEV_PHYS_SIZE - sizeof (zio_block_tail_t)];
+ zio_block_tail_t vp_zbt;
+} vdev_phys_t;
+
+typedef struct vdev_label {
+ char vl_pad[VDEV_SKIP_SIZE]; /* 8K */
+ vdev_boot_header_t vl_boot_header; /* 8K */
+ vdev_phys_t vl_vdev_phys; /* 112K */
+ char vl_uberblock[VDEV_UBERBLOCK_RING]; /* 128K */
+} vdev_label_t; /* 256K total */
+
+/*
+ * vdev_dirty() flags
+ */
+#define VDD_METASLAB 0x01
+#define VDD_DTL 0x02
+
+/*
+ * Size and offset of embedded boot loader region on each label.
+ * The total size of the first two labels plus the boot area is 4MB.
+ */
+#define VDEV_BOOT_OFFSET (2 * sizeof (vdev_label_t))
+#define VDEV_BOOT_SIZE (7ULL << 19) /* 3.5M */
+
+/*
+ * Size of label regions at the start and end of each leaf device.
+ */
+#define VDEV_LABEL_START_SIZE (2 * sizeof (vdev_label_t) + VDEV_BOOT_SIZE)
+#define VDEV_LABEL_END_SIZE (2 * sizeof (vdev_label_t))
+#define VDEV_LABELS 4
+
+#define VDEV_ALLOC_LOAD 0
+#define VDEV_ALLOC_ADD 1
+#define VDEV_ALLOC_SPARE 2
+
+/*
+ * Allocate or free a vdev
+ */
+extern int vdev_alloc(spa_t *spa, vdev_t **vdp, nvlist_t *config,
+ vdev_t *parent, uint_t id, int alloctype);
+extern void vdev_free(vdev_t *vd);
+
+/*
+ * Add or remove children and parents
+ */
+extern void vdev_add_child(vdev_t *pvd, vdev_t *cvd);
+extern void vdev_remove_child(vdev_t *pvd, vdev_t *cvd);
+extern void vdev_compact_children(vdev_t *pvd);
+extern vdev_t *vdev_add_parent(vdev_t *cvd, vdev_ops_t *ops);
+extern void vdev_remove_parent(vdev_t *cvd);
+
+/*
+ * vdev sync load and sync
+ */
+extern void vdev_load(vdev_t *vd);
+extern void vdev_sync(vdev_t *vd, uint64_t txg);
+extern void vdev_sync_done(vdev_t *vd, uint64_t txg);
+extern void vdev_dirty(vdev_t *vd, int flags, void *arg, uint64_t txg);
+
+/*
+ * Available vdev types.
+ */
+extern vdev_ops_t vdev_root_ops;
+extern vdev_ops_t vdev_mirror_ops;
+extern vdev_ops_t vdev_replacing_ops;
+extern vdev_ops_t vdev_raidz_ops;
+#ifdef _KERNEL
+extern vdev_ops_t vdev_geom_ops;
+#else
+extern vdev_ops_t vdev_disk_ops;
+extern vdev_ops_t vdev_file_ops;
+#endif
+extern vdev_ops_t vdev_missing_ops;
+extern vdev_ops_t vdev_spare_ops;
+
+/*
+ * Common size functions
+ */
+extern uint64_t vdev_default_asize(vdev_t *vd, uint64_t psize);
+extern uint64_t vdev_get_rsize(vdev_t *vd);
+
+/*
+ * zdb uses this tunable, so it must be declared here to make lint happy.
+ */
+extern int zfs_vdev_cache_size;
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* _SYS_VDEV_IMPL_H */
--- /dev/null
+++ sys/cddl/contrib/opensolaris/uts/common/fs/zfs/sys/zil_impl.h
@@ -0,0 +1,111 @@
+/*
+ * CDDL HEADER START
+ *
+ * The contents of this file are subject to the terms of the
+ * Common Development and Distribution License (the "License").
+ * You may not use this file except in compliance with the License.
+ *
+ * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
+ * or http://www.opensolaris.org/os/licensing.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ *
+ * When distributing Covered Code, include this CDDL HEADER in each
+ * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
+ * If applicable, add the following below this CDDL HEADER, with the
+ * fields enclosed by brackets "[]" replaced with your own identifying
+ * information: Portions Copyright [yyyy] [name of copyright owner]
+ *
+ * CDDL HEADER END
+ */
+/*
+ * Copyright 2006 Sun Microsystems, Inc. All rights reserved.
+ * Use is subject to license terms.
+ */
+
+#ifndef _SYS_ZIL_IMPL_H
+#define _SYS_ZIL_IMPL_H
+
+#pragma ident "%Z%%M% %I% %E% SMI"
+
+#include <sys/zil.h>
+#include <sys/dmu_objset.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/*
+ * Log write buffer.
+ */
+typedef struct lwb {
+ zilog_t *lwb_zilog; /* back pointer to log struct */
+ blkptr_t lwb_blk; /* on disk address of this log blk */
+ int lwb_nused; /* # used bytes in buffer */
+ int lwb_sz; /* size of block and buffer */
+ char *lwb_buf; /* log write buffer */
+ zio_t *lwb_zio; /* zio for this buffer */
+ uint64_t lwb_max_txg; /* highest txg in this lwb */
+ txg_handle_t lwb_txgh; /* txg handle for txg_exit() */
+ list_node_t lwb_node; /* zilog->zl_lwb_list linkage */
+} lwb_t;
+
+/*
+ * Vdev flushing: We use a bit map of size ZIL_VDEV_BMAP bytes.
+ * Any vdev numbers beyond that use a linked list of zil_vdev_t structures.
+ */
+
+#define ZIL_VDEV_BMSZ 16 /* 16 * 8 = 128 vdevs */
+typedef struct zil_vdev {
+ uint64_t vdev; /* device written */
+ list_node_t vdev_seq_node; /* zilog->zl_vdev_list linkage */
+} zil_vdev_t;
+
+/*
+ * Stable storage intent log management structure. One per dataset.
+ */
+struct zilog {
+ kmutex_t zl_lock; /* protects most zilog_t fields */
+ struct dsl_pool *zl_dmu_pool; /* DSL pool */
+ spa_t *zl_spa; /* handle for read/write log */
+ const zil_header_t *zl_header; /* log header buffer */
+ objset_t *zl_os; /* object set we're logging */
+ zil_get_data_t *zl_get_data; /* callback to get object content */
+ zio_t *zl_root_zio; /* log writer root zio */
+ uint64_t zl_itx_seq; /* next itx sequence number */
+ uint64_t zl_commit_seq; /* committed upto this number */
+ uint64_t zl_lr_seq; /* log record sequence number */
+ uint64_t zl_destroy_txg; /* txg of last zil_destroy() */
+ uint64_t zl_replay_seq[TXG_SIZE]; /* seq of last replayed rec */
+ uint32_t zl_suspend; /* log suspend count */
+ kcondvar_t zl_cv_writer; /* log writer thread completion */
+ kcondvar_t zl_cv_suspend; /* log suspend completion */
+ uint8_t zl_suspending; /* log is currently suspending */
+ uint8_t zl_keep_first; /* keep first log block in destroy */
+ uint8_t zl_stop_replay; /* don't replay any further */
+ uint8_t zl_stop_sync; /* for debugging */
+ uint8_t zl_writer; /* boolean: write setup in progress */
+ uint8_t zl_log_error; /* boolean: log write error */
+ list_t zl_itx_list; /* in-memory itx list */
+ uint64_t zl_itx_list_sz; /* total size of records on list */
+ uint64_t zl_cur_used; /* current commit log size used */
+ uint64_t zl_prev_used; /* previous commit log size used */
+ list_t zl_lwb_list; /* in-flight log write list */
+ list_t zl_vdev_list; /* list of [vdev, seq] pairs */
+ uint8_t zl_vdev_bmap[ZIL_VDEV_BMSZ]; /* bitmap of vdevs */
+ taskq_t *zl_clean_taskq; /* runs lwb and itx clean tasks */
+ avl_tree_t zl_dva_tree; /* track DVAs during log parse */
+ clock_t zl_replay_time; /* lbolt of when replay started */
+ uint64_t zl_replay_blks; /* number of log blocks replayed */
+};
+
+typedef struct zil_dva_node {
+ dva_t zn_dva;
+ avl_node_t zn_node;
+} zil_dva_node_t;
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* _SYS_ZIL_IMPL_H */
--- /dev/null
+++ sys/cddl/contrib/opensolaris/uts/common/fs/zfs/sys/vdev_file.h
@@ -0,0 +1,46 @@
+/*
+ * CDDL HEADER START
+ *
+ * The contents of this file are subject to the terms of the
+ * Common Development and Distribution License, Version 1.0 only
+ * (the "License"). You may not use this file except in compliance
+ * with the License.
+ *
+ * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
+ * or http://www.opensolaris.org/os/licensing.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ *
+ * When distributing Covered Code, include this CDDL HEADER in each
+ * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
+ * If applicable, add the following below this CDDL HEADER, with the
+ * fields enclosed by brackets "[]" replaced with your own identifying
+ * information: Portions Copyright [yyyy] [name of copyright owner]
+ *
+ * CDDL HEADER END
+ */
+/*
+ * Copyright 2005 Sun Microsystems, Inc. All rights reserved.
+ * Use is subject to license terms.
+ */
+
+#ifndef _SYS_VDEV_FILE_H
+#define _SYS_VDEV_FILE_H
+
+#pragma ident "%Z%%M% %I% %E% SMI"
+
+#include <sys/vdev.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+typedef struct vdev_file {
+ vnode_t *vf_vnode;
+} vdev_file_t;
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* _SYS_VDEV_FILE_H */
--- /dev/null
+++ sys/cddl/contrib/opensolaris/uts/common/fs/zfs/sys/uberblock_impl.h
@@ -0,0 +1,63 @@
+/*
+ * CDDL HEADER START
+ *
+ * The contents of this file are subject to the terms of the
+ * Common Development and Distribution License (the "License").
+ * You may not use this file except in compliance with the License.
+ *
+ * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
+ * or http://www.opensolaris.org/os/licensing.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ *
+ * When distributing Covered Code, include this CDDL HEADER in each
+ * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
+ * If applicable, add the following below this CDDL HEADER, with the
+ * fields enclosed by brackets "[]" replaced with your own identifying
+ * information: Portions Copyright [yyyy] [name of copyright owner]
+ *
+ * CDDL HEADER END
+ */
+/*
+ * Copyright 2006 Sun Microsystems, Inc. All rights reserved.
+ * Use is subject to license terms.
+ */
+
+#ifndef _SYS_UBERBLOCK_IMPL_H
+#define _SYS_UBERBLOCK_IMPL_H
+
+#pragma ident "%Z%%M% %I% %E% SMI"
+
+#include <sys/uberblock.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/*
+ * The uberblock version is incremented whenever an incompatible on-disk
+ * format change is made to the SPA, DMU, or ZAP.
+ *
+ * Note: the first two fields should never be moved. When a storage pool
+ * is opened, the uberblock must be read off the disk before the version
+ * can be checked. If the ub_version field is moved, we may not detect
+ * version mismatch. If the ub_magic field is moved, applications that
+ * expect the magic number in the first word won't work.
+ */
+#define UBERBLOCK_MAGIC 0x00bab10c /* oo-ba-bloc! */
+#define UBERBLOCK_SHIFT 10 /* up to 1K */
+
+struct uberblock {
+ uint64_t ub_magic; /* UBERBLOCK_MAGIC */
+ uint64_t ub_version; /* ZFS_VERSION */
+ uint64_t ub_txg; /* txg of last sync */
+ uint64_t ub_guid_sum; /* sum of all vdev guids */
+ uint64_t ub_timestamp; /* UTC time of last sync */
+ blkptr_t ub_rootbp; /* MOS objset_phys_t */
+};
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* _SYS_UBERBLOCK_IMPL_H */
--- /dev/null
+++ sys/cddl/contrib/opensolaris/uts/common/fs/zfs/sys/refcount.h
@@ -0,0 +1,103 @@
+/*
+ * CDDL HEADER START
+ *
+ * The contents of this file are subject to the terms of the
+ * Common Development and Distribution License (the "License").
+ * You may not use this file except in compliance with the License.
+ *
+ * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
+ * or http://www.opensolaris.org/os/licensing.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ *
+ * When distributing Covered Code, include this CDDL HEADER in each
+ * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
+ * If applicable, add the following below this CDDL HEADER, with the
+ * fields enclosed by brackets "[]" replaced with your own identifying
+ * information: Portions Copyright [yyyy] [name of copyright owner]
+ *
+ * CDDL HEADER END
+ */
+/*
+ * Copyright 2006 Sun Microsystems, Inc. All rights reserved.
+ * Use is subject to license terms.
+ */
+
+#ifndef _SYS_REFCOUNT_H
+#define _SYS_REFCOUNT_H
+
+#pragma ident "%Z%%M% %I% %E% SMI"
+
+#include <sys/list.h>
+#include <sys/zfs_context.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/*
+ * If the reference is held only by the calling function and not any
+ * particular object, use FTAG (which is a string) for the holder_tag.
+ * Otherwise, use the object that holds the reference.
+ */
+#define FTAG ((char *)__func__)
+
+#if defined(DEBUG) || !defined(_KERNEL)
+typedef struct reference {
+ list_node_t ref_link;
+ void *ref_holder;
+ uint64_t ref_number;
+ uint8_t *ref_removed;
+} reference_t;
+
+typedef struct refcount {
+ kmutex_t rc_mtx;
+ list_t rc_list;
+ list_t rc_removed;
+ int64_t rc_count;
+ int64_t rc_removed_count;
+} refcount_t;
+
+/* Note: refcount_t should be initialized to zero before use. */
+
+void refcount_create(refcount_t *rc);
+void refcount_destroy(refcount_t *rc);
+void refcount_destroy_many(refcount_t *rc, uint64_t number);
+int refcount_is_zero(refcount_t *rc);
+int64_t refcount_count(refcount_t *rc);
+int64_t refcount_add(refcount_t *rc, void *holder_tag);
+int64_t refcount_remove(refcount_t *rc, void *holder_tag);
+int64_t refcount_add_many(refcount_t *rc, uint64_t number, void *holder_tag);
+int64_t refcount_remove_many(refcount_t *rc, uint64_t number, void *holder_tag);
+
+void refcount_init(void);
+void refcount_fini(void);
+
+#else /* DEBUG */
+
+typedef struct refcount {
+ uint64_t rc_count;
+} refcount_t;
+
+#define refcount_create(rc) ((rc)->rc_count = 0)
+#define refcount_destroy(rc) ((rc)->rc_count = 0)
+#define refcount_destroy_many(rc, number) ((rc)->rc_count = 0)
+#define refcount_is_zero(rc) ((rc)->rc_count == 0)
+#define refcount_count(rc) ((rc)->rc_count)
+#define refcount_add(rc, holder) atomic_add_64_nv(&(rc)->rc_count, 1)
+#define refcount_remove(rc, holder) atomic_add_64_nv(&(rc)->rc_count, -1)
+#define refcount_add_many(rc, number, holder) \
+ atomic_add_64_nv(&(rc)->rc_count, number)
+#define refcount_remove_many(rc, number, holder) \
+ atomic_add_64_nv(&(rc)->rc_count, -number)
+
+#define refcount_init()
+#define refcount_fini()
+
+#endif /* DEBUG */
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* _SYS_REFCOUNT_H */
--- /dev/null
+++ sys/cddl/contrib/opensolaris/uts/common/fs/zfs/sys/zvol.h
@@ -0,0 +1,68 @@
+/*
+ * CDDL HEADER START
+ *
+ * The contents of this file are subject to the terms of the
+ * Common Development and Distribution License (the "License").
+ * You may not use this file except in compliance with the License.
+ *
+ * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
+ * or http://www.opensolaris.org/os/licensing.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ *
+ * When distributing Covered Code, include this CDDL HEADER in each
+ * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
+ * If applicable, add the following below this CDDL HEADER, with the
+ * fields enclosed by brackets "[]" replaced with your own identifying
+ * information: Portions Copyright [yyyy] [name of copyright owner]
+ *
+ * CDDL HEADER END
+ */
+
+/*
+ * Copyright 2006 Sun Microsystems, Inc. All rights reserved.
+ * Use is subject to license terms.
+ */
+
+#ifndef _SYS_ZVOL_H
+#define _SYS_ZVOL_H
+
+#pragma ident "%Z%%M% %I% %E% SMI"
+
+#include <sys/zfs_context.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#ifdef _KERNEL
+extern int zvol_check_volsize(uint64_t volsize, uint64_t blocksize);
+extern int zvol_check_volblocksize(uint64_t volblocksize);
+extern int zvol_get_stats(objset_t *os, nvlist_t *nv);
+extern void zvol_create_cb(objset_t *os, void *arg, dmu_tx_t *tx);
+extern int zvol_create_minor(const char *, dev_t);
+extern int zvol_remove_minor(const char *);
+extern int zvol_set_volsize(const char *, dev_t, uint64_t);
+extern int zvol_set_volblocksize(const char *, uint64_t);
+
+extern int zvol_open(dev_t *devp, int flag, int otyp, cred_t *cr);
+extern int zvol_close(dev_t dev, int flag, int otyp, cred_t *cr);
+#ifndef __FreeBSD__
+extern int zvol_strategy(buf_t *bp);
+extern int zvol_read(dev_t dev, uio_t *uiop, cred_t *cr);
+extern int zvol_write(dev_t dev, uio_t *uiop, cred_t *cr);
+extern int zvol_aread(dev_t dev, struct aio_req *aio, cred_t *cr);
+extern int zvol_awrite(dev_t dev, struct aio_req *aio, cred_t *cr);
+#endif
+extern int zvol_ioctl(dev_t dev, int cmd, intptr_t arg, int flag, cred_t *cr,
+ int *rvalp);
+extern int zvol_busy(void);
+extern void zvol_init(void);
+extern void zvol_fini(void);
+#endif
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* _SYS_ZVOL_H */
--- /dev/null
+++ sys/cddl/contrib/opensolaris/uts/common/fs/zfs/sys/zap.h
@@ -0,0 +1,359 @@
+/*
+ * CDDL HEADER START
+ *
+ * The contents of this file are subject to the terms of the
+ * Common Development and Distribution License (the "License").
+ * You may not use this file except in compliance with the License.
+ *
+ * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
+ * or http://www.opensolaris.org/os/licensing.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ *
+ * When distributing Covered Code, include this CDDL HEADER in each
+ * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
+ * If applicable, add the following below this CDDL HEADER, with the
+ * fields enclosed by brackets "[]" replaced with your own identifying
+ * information: Portions Copyright [yyyy] [name of copyright owner]
+ *
+ * CDDL HEADER END
+ */
+/*
+ * Copyright 2006 Sun Microsystems, Inc. All rights reserved.
+ * Use is subject to license terms.
+ */
+
+#ifndef _SYS_ZAP_H
+#define _SYS_ZAP_H
+
+#pragma ident "%Z%%M% %I% %E% SMI"
+
+/*
+ * ZAP - ZFS Attribute Processor
+ *
+ * The ZAP is a module which sits on top of the DMU (Data Managemnt
+ * Unit) and implements a higher-level storage primitive using DMU
+ * objects. Its primary consumer is the ZPL (ZFS Posix Layer).
+ *
+ * A "zapobj" is a DMU object which the ZAP uses to stores attributes.
+ * Users should use only zap routines to access a zapobj - they should
+ * not access the DMU object directly using DMU routines.
+ *
+ * The attributes stored in a zapobj are name-value pairs. The name is
+ * a zero-terminated string of up to ZAP_MAXNAMELEN bytes (including
+ * terminating NULL). The value is an array of integers, which may be
+ * 1, 2, 4, or 8 bytes long. The total space used by the array (number
+ * of integers * integer length) can be up to ZAP_MAXVALUELEN bytes.
+ * Note that an 8-byte integer value can be used to store the location
+ * (object number) of another dmu object (which may be itself a zapobj).
+ * Note that you can use a zero-length attribute to store a single bit
+ * of information - the attribute is present or not.
+ *
+ * The ZAP routines are thread-safe. However, you must observe the
+ * DMU's restriction that a transaction may not be operated on
+ * concurrently.
+ *
+ * Any of the routines that return an int may return an I/O error (EIO
+ * or ECHECKSUM).
+ *
+ *
+ * Implementation / Performance Notes:
+ *
+ * The ZAP is intended to operate most efficiently on attributes with
+ * short (49 bytes or less) names and single 8-byte values, for which
+ * the microzap will be used. The ZAP should be efficient enough so
+ * that the user does not need to cache these attributes.
+ *
+ * The ZAP's locking scheme makes its routines thread-safe. Operations
+ * on different zapobjs will be processed concurrently. Operations on
+ * the same zapobj which only read data will be processed concurrently.
+ * Operations on the same zapobj which modify data will be processed
+ * concurrently when there are many attributes in the zapobj (because
+ * the ZAP uses per-block locking - more than 128 * (number of cpus)
+ * small attributes will suffice).
+ */
+
+/*
+ * We're using zero-terminated byte strings (ie. ASCII or UTF-8 C
+ * strings) for the names of attributes, rather than a byte string
+ * bounded by an explicit length. If some day we want to support names
+ * in character sets which have embedded zeros (eg. UTF-16, UTF-32),
+ * we'll have to add routines for using length-bounded strings.
+ */
+
+#include <sys/dmu.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#define ZAP_MAXNAMELEN 256
+#define ZAP_MAXVALUELEN 1024
+
+/*
+ * Create a new zapobj with no attributes and return its object number.
+ */
+uint64_t zap_create(objset_t *ds, dmu_object_type_t ot,
+ dmu_object_type_t bonustype, int bonuslen, dmu_tx_t *tx);
+
+/*
+ * Create a new zapobj with no attributes from the given (unallocated)
+ * object number.
+ */
+int zap_create_claim(objset_t *ds, uint64_t obj, dmu_object_type_t ot,
+ dmu_object_type_t bonustype, int bonuslen, dmu_tx_t *tx);
+
+/*
+ * The zapobj passed in must be a valid ZAP object for all of the
+ * following routines.
+ */
+
+/*
+ * Destroy this zapobj and all its attributes.
+ *
+ * Frees the object number using dmu_object_free.
+ */
+int zap_destroy(objset_t *ds, uint64_t zapobj, dmu_tx_t *tx);
+
+/*
+ * Manipulate attributes.
+ *
+ * 'integer_size' is in bytes, and must be 1, 2, 4, or 8.
+ */
+
+/*
+ * Retrieve the contents of the attribute with the given name.
+ *
+ * If the requested attribute does not exist, the call will fail and
+ * return ENOENT.
+ *
+ * If 'integer_size' is smaller than the attribute's integer size, the
+ * call will fail and return EINVAL.
+ *
+ * If 'integer_size' is equal to or larger than the attribute's integer
+ * size, the call will succeed and return 0. * When converting to a
+ * larger integer size, the integers will be treated as unsigned (ie. no
+ * sign-extension will be performed).
+ *
+ * 'num_integers' is the length (in integers) of 'buf'.
+ *
+ * If the attribute is longer than the buffer, as many integers as will
+ * fit will be transferred to 'buf'. If the entire attribute was not
+ * transferred, the call will return EOVERFLOW.
+ */
+int zap_lookup(objset_t *ds, uint64_t zapobj, const char *name,
+ uint64_t integer_size, uint64_t num_integers, void *buf);
+
+/*
+ * Create an attribute with the given name and value.
+ *
+ * If an attribute with the given name already exists, the call will
+ * fail and return EEXIST.
+ */
+int zap_add(objset_t *ds, uint64_t zapobj, const char *name,
+ int integer_size, uint64_t num_integers,
+ const void *val, dmu_tx_t *tx);
+
+/*
+ * Set the attribute with the given name to the given value. If an
+ * attribute with the given name does not exist, it will be created. If
+ * an attribute with the given name already exists, the previous value
+ * will be overwritten. The integer_size may be different from the
+ * existing attribute's integer size, in which case the attribute's
+ * integer size will be updated to the new value.
+ */
+int zap_update(objset_t *ds, uint64_t zapobj, const char *name,
+ int integer_size, uint64_t num_integers, const void *val, dmu_tx_t *tx);
+
+/*
+ * Get the length (in integers) and the integer size of the specified
+ * attribute.
+ *
+ * If the requested attribute does not exist, the call will fail and
+ * return ENOENT.
+ */
+int zap_length(objset_t *ds, uint64_t zapobj, const char *name,
+ uint64_t *integer_size, uint64_t *num_integers);
+
+/*
+ * Remove the specified attribute.
+ *
+ * If the specified attribute does not exist, the call will fail and
+ * return ENOENT.
+ */
+int zap_remove(objset_t *ds, uint64_t zapobj, const char *name, dmu_tx_t *tx);
+
+/*
+ * Returns (in *count) the number of attributes in the specified zap
+ * object.
+ */
+int zap_count(objset_t *ds, uint64_t zapobj, uint64_t *count);
+
+
+/*
+ * Returns (in name) the name of the entry whose value
+ * (za_first_integer) is value, or ENOENT if not found. The string
+ * pointed to by name must be at least 256 bytes long.
+ */
+int zap_value_search(objset_t *os, uint64_t zapobj, uint64_t value, char *name);
+
+struct zap;
+struct zap_leaf;
+typedef struct zap_cursor {
+ /* This structure is opaque! */
+ objset_t *zc_objset;
+ struct zap *zc_zap;
+ struct zap_leaf *zc_leaf;
+ uint64_t zc_zapobj;
+ uint64_t zc_hash;
+ uint32_t zc_cd;
+} zap_cursor_t;
+
+typedef struct {
+ int za_integer_length;
+ uint64_t za_num_integers;
+ uint64_t za_first_integer; /* no sign extension for <8byte ints */
+ char za_name[MAXNAMELEN];
+} zap_attribute_t;
+
+/*
+ * The interface for listing all the attributes of a zapobj can be
+ * thought of as cursor moving down a list of the attributes one by
+ * one. The cookie returned by the zap_cursor_serialize routine is
+ * persistent across system calls (and across reboot, even).
+ */
+
+/*
+ * Initialize a zap cursor, pointing to the "first" attribute of the
+ * zapobj. You must _fini the cursor when you are done with it.
+ */
+void zap_cursor_init(zap_cursor_t *zc, objset_t *ds, uint64_t zapobj);
+void zap_cursor_fini(zap_cursor_t *zc);
+
+/*
+ * Get the attribute currently pointed to by the cursor. Returns
+ * ENOENT if at the end of the attributes.
+ */
+int zap_cursor_retrieve(zap_cursor_t *zc, zap_attribute_t *za);
+
+/*
+ * Advance the cursor to the next attribute.
+ */
+void zap_cursor_advance(zap_cursor_t *zc);
+
+/*
+ * Get a persistent cookie pointing to the current position of the zap
+ * cursor. The low 4 bits in the cookie are always zero, and thus can
+ * be used as to differentiate a serialized cookie from a different type
+ * of value. The cookie will be less than 2^32 as long as there are
+ * fewer than 2^22 (4.2 million) entries in the zap object.
+ */
+uint64_t zap_cursor_serialize(zap_cursor_t *zc);
+
+/*
+ * Initialize a zap cursor pointing to the position recorded by
+ * zap_cursor_serialize (in the "serialized" argument). You can also
+ * use a "serialized" argument of 0 to start at the beginning of the
+ * zapobj (ie. zap_cursor_init_serialized(..., 0) is equivalent to
+ * zap_cursor_init(...).)
+ */
+void zap_cursor_init_serialized(zap_cursor_t *zc, objset_t *ds,
+ uint64_t zapobj, uint64_t serialized);
+
+
+#define ZAP_HISTOGRAM_SIZE 10
+
+typedef struct zap_stats {
+ /*
+ * Size of the pointer table (in number of entries).
+ * This is always a power of 2, or zero if it's a microzap.
+ * In general, it should be considerably greater than zs_num_leafs.
+ */
+ uint64_t zs_ptrtbl_len;
+
+ uint64_t zs_blocksize; /* size of zap blocks */
+
+ /*
+ * The number of blocks used. Note that some blocks may be
+ * wasted because old ptrtbl's and large name/value blocks are
+ * not reused. (Although their space is reclaimed, we don't
+ * reuse those offsets in the object.)
+ */
+ uint64_t zs_num_blocks;
+
+ /*
+ * Pointer table values from zap_ptrtbl in the zap_phys_t
+ */
+ uint64_t zs_ptrtbl_nextblk; /* next (larger) copy start block */
+ uint64_t zs_ptrtbl_blks_copied; /* number source blocks copied */
+ uint64_t zs_ptrtbl_zt_blk; /* starting block number */
+ uint64_t zs_ptrtbl_zt_numblks; /* number of blocks */
+ uint64_t zs_ptrtbl_zt_shift; /* bits to index it */
+
+ /*
+ * Values of the other members of the zap_phys_t
+ */
+ uint64_t zs_block_type; /* ZBT_HEADER */
+ uint64_t zs_magic; /* ZAP_MAGIC */
+ uint64_t zs_num_leafs; /* The number of leaf blocks */
+ uint64_t zs_num_entries; /* The number of zap entries */
+ uint64_t zs_salt; /* salt to stir into hash function */
+
+ /*
+ * Histograms. For all histograms, the last index
+ * (ZAP_HISTOGRAM_SIZE-1) includes any values which are greater
+ * than what can be represented. For example
+ * zs_leafs_with_n5_entries[ZAP_HISTOGRAM_SIZE-1] is the number
+ * of leafs with more than 45 entries.
+ */
+
+ /*
+ * zs_leafs_with_n_pointers[n] is the number of leafs with
+ * 2^n pointers to it.
+ */
+ uint64_t zs_leafs_with_2n_pointers[ZAP_HISTOGRAM_SIZE];
+
+ /*
+ * zs_leafs_with_n_entries[n] is the number of leafs with
+ * [n*5, (n+1)*5) entries. In the current implementation, there
+ * can be at most 55 entries in any block, but there may be
+ * fewer if the name or value is large, or the block is not
+ * completely full.
+ */
+ uint64_t zs_blocks_with_n5_entries[ZAP_HISTOGRAM_SIZE];
+
+ /*
+ * zs_leafs_n_tenths_full[n] is the number of leafs whose
+ * fullness is in the range [n/10, (n+1)/10).
+ */
+ uint64_t zs_blocks_n_tenths_full[ZAP_HISTOGRAM_SIZE];
+
+ /*
+ * zs_entries_using_n_chunks[n] is the number of entries which
+ * consume n 24-byte chunks. (Note, large names/values only use
+ * one chunk, but contribute to zs_num_blocks_large.)
+ */
+ uint64_t zs_entries_using_n_chunks[ZAP_HISTOGRAM_SIZE];
+
+ /*
+ * zs_buckets_with_n_entries[n] is the number of buckets (each
+ * leaf has 64 buckets) with n entries.
+ * zs_buckets_with_n_entries[1] should be very close to
+ * zs_num_entries.
+ */
+ uint64_t zs_buckets_with_n_entries[ZAP_HISTOGRAM_SIZE];
+} zap_stats_t;
+
+/*
+ * Get statistics about a ZAP object. Note: you need to be aware of the
+ * internal implementation of the ZAP to correctly interpret some of the
+ * statistics. This interface shouldn't be relied on unless you really
+ * know what you're doing.
+ */
+int zap_get_stats(objset_t *ds, uint64_t zapobj, zap_stats_t *zs);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* _SYS_ZAP_H */
--- /dev/null
+++ sys/cddl/contrib/opensolaris/uts/common/fs/zfs/sys/dsl_synctask.h
@@ -0,0 +1,77 @@
+/*
+ * CDDL HEADER START
+ *
+ * The contents of this file are subject to the terms of the
+ * Common Development and Distribution License (the "License").
+ * You may not use this file except in compliance with the License.
+ *
+ * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
+ * or http://www.opensolaris.org/os/licensing.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ *
+ * When distributing Covered Code, include this CDDL HEADER in each
+ * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
+ * If applicable, add the following below this CDDL HEADER, with the
+ * fields enclosed by brackets "[]" replaced with your own identifying
+ * information: Portions Copyright [yyyy] [name of copyright owner]
+ *
+ * CDDL HEADER END
+ */
+/*
+ * Copyright 2006 Sun Microsystems, Inc. All rights reserved.
+ * Use is subject to license terms.
+ */
+
+#ifndef _SYS_DSL_SYNCTASK_H
+#define _SYS_DSL_SYNCTASK_H
+
+#pragma ident "%Z%%M% %I% %E% SMI"
+
+#include <sys/txg.h>
+#include <sys/zfs_context.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+struct dsl_pool;
+
+typedef int (dsl_checkfunc_t)(void *, void *, dmu_tx_t *);
+typedef void (dsl_syncfunc_t)(void *, void *, dmu_tx_t *);
+
+typedef struct dsl_sync_task {
+ list_node_t dst_node;
+ dsl_checkfunc_t *dst_checkfunc;
+ dsl_syncfunc_t *dst_syncfunc;
+ void *dst_arg1;
+ void *dst_arg2;
+ int dst_err;
+} dsl_sync_task_t;
+
+typedef struct dsl_sync_task_group {
+ txg_node_t dstg_node;
+ list_t dstg_tasks;
+ struct dsl_pool *dstg_pool;
+ uint64_t dstg_txg;
+ int dstg_err;
+ int dstg_space;
+} dsl_sync_task_group_t;
+
+dsl_sync_task_group_t *dsl_sync_task_group_create(struct dsl_pool *dp);
+void dsl_sync_task_create(dsl_sync_task_group_t *dstg,
+ dsl_checkfunc_t *, dsl_syncfunc_t *,
+ void *arg1, void *arg2, int blocks_modified);
+int dsl_sync_task_group_wait(dsl_sync_task_group_t *dstg);
+void dsl_sync_task_group_destroy(dsl_sync_task_group_t *dstg);
+void dsl_sync_task_group_sync(dsl_sync_task_group_t *dstg, dmu_tx_t *tx);
+
+int dsl_sync_task_do(struct dsl_pool *dp,
+ dsl_checkfunc_t *checkfunc, dsl_syncfunc_t *syncfunc,
+ void *arg1, void *arg2, int blocks_modified);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* _SYS_DSL_SYNCTASK_H */
--- /dev/null
+++ sys/cddl/contrib/opensolaris/uts/common/fs/zfs/sys/zfs_rlock.h
@@ -0,0 +1,89 @@
+/*
+ * CDDL HEADER START
+ *
+ * The contents of this file are subject to the terms of the
+ * Common Development and Distribution License (the "License").
+ * You may not use this file except in compliance with the License.
+ *
+ * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
+ * or http://www.opensolaris.org/os/licensing.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ *
+ * When distributing Covered Code, include this CDDL HEADER in each
+ * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
+ * If applicable, add the following below this CDDL HEADER, with the
+ * fields enclosed by brackets "[]" replaced with your own identifying
+ * information: Portions Copyright [yyyy] [name of copyright owner]
+ *
+ * CDDL HEADER END
+ */
+/*
+ * Copyright 2006 Sun Microsystems, Inc. All rights reserved.
+ * Use is subject to license terms.
+ */
+
+#ifndef _SYS_FS_ZFS_RLOCK_H
+#define _SYS_FS_ZFS_RLOCK_H
+
+#pragma ident "%Z%%M% %I% %E% SMI"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#ifdef _KERNEL
+
+#include <sys/zfs_znode.h>
+
+typedef enum {
+ RL_READER,
+ RL_WRITER,
+ RL_APPEND
+} rl_type_t;
+
+typedef struct rl {
+ znode_t *r_zp; /* znode this lock applies to */
+ avl_node_t r_node; /* avl node link */
+ uint64_t r_off; /* file range offset */
+ uint64_t r_len; /* file range length */
+ uint_t r_cnt; /* range reference count in tree */
+ rl_type_t r_type; /* range type */
+ kcondvar_t r_wr_cv; /* cv for waiting writers */
+ kcondvar_t r_rd_cv; /* cv for waiting readers */
+ uint8_t r_proxy; /* acting for original range */
+ uint8_t r_write_wanted; /* writer wants to lock this range */
+ uint8_t r_read_wanted; /* reader wants to lock this range */
+} rl_t;
+
+/*
+ * Lock a range (offset, length) as either shared (READER)
+ * or exclusive (WRITER or APPEND). APPEND is a special type that
+ * is converted to WRITER that specified to lock from the start of the
+ * end of file. zfs_range_lock() returns the range lock structure.
+ */
+rl_t *zfs_range_lock(znode_t *zp, uint64_t off, uint64_t len, rl_type_t type);
+
+/*
+ * Unlock range and destroy range lock structure.
+ */
+void zfs_range_unlock(rl_t *rl);
+
+/*
+ * Reduce range locked as RW_WRITER from whole file to specified range.
+ * Asserts the whole file was previously locked.
+ */
+void zfs_range_reduce(rl_t *rl, uint64_t off, uint64_t len);
+
+/*
+ * AVL comparison function used to compare range locks
+ */
+int zfs_range_compare(const void *arg1, const void *arg2);
+
+#endif /* _KERNEL */
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* _SYS_FS_ZFS_RLOCK_H */
--- /dev/null
+++ sys/cddl/contrib/opensolaris/uts/common/fs/zfs/sys/dsl_dir.h
@@ -0,0 +1,143 @@
+/*
+ * CDDL HEADER START
+ *
+ * The contents of this file are subject to the terms of the
+ * Common Development and Distribution License (the "License").
+ * You may not use this file except in compliance with the License.
+ *
+ * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
+ * or http://www.opensolaris.org/os/licensing.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ *
+ * When distributing Covered Code, include this CDDL HEADER in each
+ * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
+ * If applicable, add the following below this CDDL HEADER, with the
+ * fields enclosed by brackets "[]" replaced with your own identifying
+ * information: Portions Copyright [yyyy] [name of copyright owner]
+ *
+ * CDDL HEADER END
+ */
+/*
+ * Copyright 2007 Sun Microsystems, Inc. All rights reserved.
+ * Use is subject to license terms.
+ */
+
+#ifndef _SYS_DSL_DIR_H
+#define _SYS_DSL_DIR_H
+
+#pragma ident "%Z%%M% %I% %E% SMI"
+
+#include <sys/dmu.h>
+#include <sys/dsl_pool.h>
+#include <sys/dsl_synctask.h>
+#include <sys/refcount.h>
+#include <sys/zfs_context.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+struct dsl_dataset;
+
+typedef struct dsl_dir_phys {
+ uint64_t dd_creation_time; /* not actually used */
+ uint64_t dd_head_dataset_obj;
+ uint64_t dd_parent_obj;
+ uint64_t dd_clone_parent_obj;
+ uint64_t dd_child_dir_zapobj;
+ /*
+ * how much space our children are accounting for; for leaf
+ * datasets, == physical space used by fs + snaps
+ */
+ uint64_t dd_used_bytes;
+ uint64_t dd_compressed_bytes;
+ uint64_t dd_uncompressed_bytes;
+ /* Administrative quota setting */
+ uint64_t dd_quota;
+ /* Administrative reservation setting */
+ uint64_t dd_reserved;
+ uint64_t dd_props_zapobj;
+ uint64_t dd_pad[21]; /* pad out to 256 bytes for good measure */
+} dsl_dir_phys_t;
+
+struct dsl_dir {
+ /* These are immutable; no lock needed: */
+ uint64_t dd_object;
+ dsl_dir_phys_t *dd_phys;
+ dmu_buf_t *dd_dbuf;
+ dsl_pool_t *dd_pool;
+
+ /* protected by lock on pool's dp_dirty_dirs list */
+ txg_node_t dd_dirty_link;
+
+ /* protected by dp_config_rwlock */
+ dsl_dir_t *dd_parent;
+
+ /* Protected by dd_lock */
+ kmutex_t dd_lock;
+ list_t dd_prop_cbs; /* list of dsl_prop_cb_record_t's */
+
+ /* Accounting */
+ /* reflects any changes to dd_phys->dd_used_bytes made this syncing */
+ int64_t dd_used_bytes;
+ /* gross estimate of space used by in-flight tx's */
+ uint64_t dd_tempreserved[TXG_SIZE];
+ /* amount of space we expect to write; == amount of dirty data */
+ int64_t dd_space_towrite[TXG_SIZE];
+
+ /* protected by dd_lock; keep at end of struct for better locality */
+ char dd_myname[MAXNAMELEN];
+};
+
+void dsl_dir_close(dsl_dir_t *dd, void *tag);
+int dsl_dir_open(const char *name, void *tag, dsl_dir_t **, const char **tail);
+int dsl_dir_open_spa(spa_t *spa, const char *name, void *tag, dsl_dir_t **,
+ const char **tailp);
+int dsl_dir_open_obj(dsl_pool_t *dp, uint64_t ddobj,
+ const char *tail, void *tag, dsl_dir_t **);
+void dsl_dir_name(dsl_dir_t *dd, char *buf);
+int dsl_dir_namelen(dsl_dir_t *dd);
+int dsl_dir_is_private(dsl_dir_t *dd);
+uint64_t dsl_dir_create_sync(dsl_dir_t *pds, const char *name, dmu_tx_t *tx);
+void dsl_dir_create_root(objset_t *mos, uint64_t *ddobjp, dmu_tx_t *tx);
+dsl_checkfunc_t dsl_dir_destroy_check;
+dsl_syncfunc_t dsl_dir_destroy_sync;
+void dsl_dir_stats(dsl_dir_t *dd, nvlist_t *nv);
+uint64_t dsl_dir_space_available(dsl_dir_t *dd,
+ dsl_dir_t *ancestor, int64_t delta, int ondiskonly);
+void dsl_dir_dirty(dsl_dir_t *dd, dmu_tx_t *tx);
+void dsl_dir_sync(dsl_dir_t *dd, dmu_tx_t *tx);
+int dsl_dir_tempreserve_space(dsl_dir_t *dd, uint64_t mem,
+ uint64_t asize, uint64_t fsize, void **tr_cookiep, dmu_tx_t *tx);
+void dsl_dir_tempreserve_clear(void *tr_cookie, dmu_tx_t *tx);
+void dsl_dir_willuse_space(dsl_dir_t *dd, int64_t space, dmu_tx_t *tx);
+void dsl_dir_diduse_space(dsl_dir_t *dd,
+ int64_t used, int64_t compressed, int64_t uncompressed, dmu_tx_t *tx);
+int dsl_dir_set_quota(const char *ddname, uint64_t quota);
+int dsl_dir_set_reservation(const char *ddname, uint64_t reservation);
+int dsl_dir_rename(dsl_dir_t *dd, const char *newname);
+int dsl_dir_transfer_possible(dsl_dir_t *sdd, dsl_dir_t *tdd, uint64_t space);
+
+/* internal reserved dir name */
+#define MOS_DIR_NAME "$MOS"
+
+#ifdef ZFS_DEBUG
+#define dprintf_dd(dd, fmt, ...) do { \
+ if (zfs_flags & ZFS_DEBUG_DPRINTF) { \
+ char *__ds_name = kmem_alloc(MAXNAMELEN + strlen(MOS_DIR_NAME) + 1, \
+ KM_SLEEP); \
+ dsl_dir_name(dd, __ds_name); \
+ dprintf("dd=%s " fmt, __ds_name, __VA_ARGS__); \
+ kmem_free(__ds_name, MAXNAMELEN + strlen(MOS_DIR_NAME) + 1); \
+ } \
+_NOTE(CONSTCOND) } while (0)
+#else
+#define dprintf_dd(dd, fmt, ...)
+#endif
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* _SYS_DSL_DIR_H */
--- /dev/null
+++ sys/cddl/contrib/opensolaris/uts/common/fs/zfs/sys/zio_impl.h
@@ -0,0 +1,205 @@
+/*
+ * CDDL HEADER START
+ *
+ * The contents of this file are subject to the terms of the
+ * Common Development and Distribution License (the "License").
+ * You may not use this file except in compliance with the License.
+ *
+ * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
+ * or http://www.opensolaris.org/os/licensing.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ *
+ * When distributing Covered Code, include this CDDL HEADER in each
+ * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
+ * If applicable, add the following below this CDDL HEADER, with the
+ * fields enclosed by brackets "[]" replaced with your own identifying
+ * information: Portions Copyright [yyyy] [name of copyright owner]
+ *
+ * CDDL HEADER END
+ */
+/*
+ * Copyright 2006 Sun Microsystems, Inc. All rights reserved.
+ * Use is subject to license terms.
+ */
+
+#ifndef _ZIO_IMPL_H
+#define _ZIO_IMPL_H
+
+#pragma ident "%Z%%M% %I% %E% SMI"
+
+#include <sys/zfs_context.h>
+#include <sys/zio.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/*
+ * I/O Groups: pipeline stage definitions.
+ */
+
+typedef enum zio_stage {
+ ZIO_STAGE_OPEN = 0, /* RWFCI */
+ ZIO_STAGE_WAIT_CHILDREN_READY, /* RWFCI */
+
+ ZIO_STAGE_WRITE_COMPRESS, /* -W--- */
+ ZIO_STAGE_CHECKSUM_GENERATE, /* -W--- */
+
+ ZIO_STAGE_GANG_PIPELINE, /* -WFC- */
+
+ ZIO_STAGE_GET_GANG_HEADER, /* -WFC- */
+ ZIO_STAGE_REWRITE_GANG_MEMBERS, /* -W--- */
+ ZIO_STAGE_FREE_GANG_MEMBERS, /* --F-- */
+ ZIO_STAGE_CLAIM_GANG_MEMBERS, /* ---C- */
+
+ ZIO_STAGE_DVA_ALLOCATE, /* -W--- */
+ ZIO_STAGE_DVA_FREE, /* --F-- */
+ ZIO_STAGE_DVA_CLAIM, /* ---C- */
+
+ ZIO_STAGE_GANG_CHECKSUM_GENERATE, /* -W--- */
+
+ ZIO_STAGE_READY, /* RWFCI */
+
+ ZIO_STAGE_VDEV_IO_START, /* RW--I */
+ ZIO_STAGE_VDEV_IO_DONE, /* RW--I */
+ ZIO_STAGE_VDEV_IO_ASSESS, /* RW--I */
+
+ ZIO_STAGE_WAIT_CHILDREN_DONE, /* RWFCI */
+
+ ZIO_STAGE_CHECKSUM_VERIFY, /* R---- */
+ ZIO_STAGE_READ_GANG_MEMBERS, /* R---- */
+ ZIO_STAGE_READ_DECOMPRESS, /* R---- */
+
+ ZIO_STAGE_DONE /* RWFCI */
+} zio_stage_t;
+
+/*
+ * The stages for which there's some performance value in going async.
+ * When compression is enabled, ZIO_STAGE_WRITE_COMPRESS is ORed in as well.
+ */
+#define ZIO_ASYNC_PIPELINE_STAGES \
+ ((1U << ZIO_STAGE_CHECKSUM_GENERATE) | \
+ (1U << ZIO_STAGE_VDEV_IO_DONE) | \
+ (1U << ZIO_STAGE_CHECKSUM_VERIFY) | \
+ (1U << ZIO_STAGE_READ_DECOMPRESS))
+
+#define ZIO_VDEV_IO_PIPELINE \
+ ((1U << ZIO_STAGE_VDEV_IO_START) | \
+ (1U << ZIO_STAGE_VDEV_IO_DONE) | \
+ (1U << ZIO_STAGE_VDEV_IO_ASSESS))
+
+#define ZIO_READ_PHYS_PIPELINE \
+ ((1U << ZIO_STAGE_OPEN) | \
+ (1U << ZIO_STAGE_WAIT_CHILDREN_READY) | \
+ (1U << ZIO_STAGE_READY) | \
+ ZIO_VDEV_IO_PIPELINE | \
+ (1U << ZIO_STAGE_WAIT_CHILDREN_DONE) | \
+ (1U << ZIO_STAGE_CHECKSUM_VERIFY) | \
+ (1U << ZIO_STAGE_DONE))
+
+#define ZIO_READ_PIPELINE \
+ ZIO_READ_PHYS_PIPELINE
+
+#define ZIO_WRITE_PHYS_PIPELINE \
+ ((1U << ZIO_STAGE_OPEN) | \
+ (1U << ZIO_STAGE_WAIT_CHILDREN_READY) | \
+ (1U << ZIO_STAGE_CHECKSUM_GENERATE) | \
+ (1U << ZIO_STAGE_READY) | \
+ ZIO_VDEV_IO_PIPELINE | \
+ (1U << ZIO_STAGE_WAIT_CHILDREN_DONE) | \
+ (1U << ZIO_STAGE_DONE))
+
+#define ZIO_WRITE_COMMON_PIPELINE \
+ ZIO_WRITE_PHYS_PIPELINE
+
+#define ZIO_WRITE_PIPELINE \
+ ((1U << ZIO_STAGE_WRITE_COMPRESS) | \
+ ZIO_WRITE_COMMON_PIPELINE)
+
+#define ZIO_GANG_STAGES \
+ ((1U << ZIO_STAGE_GET_GANG_HEADER) | \
+ (1U << ZIO_STAGE_REWRITE_GANG_MEMBERS) | \
+ (1U << ZIO_STAGE_FREE_GANG_MEMBERS) | \
+ (1U << ZIO_STAGE_CLAIM_GANG_MEMBERS) | \
+ (1U << ZIO_STAGE_GANG_CHECKSUM_GENERATE) | \
+ (1U << ZIO_STAGE_READ_GANG_MEMBERS))
+
+#define ZIO_REWRITE_PIPELINE \
+ ((1U << ZIO_STAGE_GANG_PIPELINE) | \
+ (1U << ZIO_STAGE_GET_GANG_HEADER) | \
+ (1U << ZIO_STAGE_REWRITE_GANG_MEMBERS) | \
+ (1U << ZIO_STAGE_GANG_CHECKSUM_GENERATE) | \
+ ZIO_WRITE_COMMON_PIPELINE)
+
+#define ZIO_WRITE_ALLOCATE_PIPELINE \
+ ((1U << ZIO_STAGE_DVA_ALLOCATE) | \
+ ZIO_WRITE_COMMON_PIPELINE)
+
+#define ZIO_GANG_FREE_STAGES \
+ ((1U << ZIO_STAGE_GET_GANG_HEADER) | \
+ (1U << ZIO_STAGE_FREE_GANG_MEMBERS))
+
+#define ZIO_FREE_PIPELINE \
+ ((1U << ZIO_STAGE_OPEN) | \
+ (1U << ZIO_STAGE_WAIT_CHILDREN_READY) | \
+ (1U << ZIO_STAGE_GANG_PIPELINE) | \
+ (1U << ZIO_STAGE_GET_GANG_HEADER) | \
+ (1U << ZIO_STAGE_FREE_GANG_MEMBERS) | \
+ (1U << ZIO_STAGE_DVA_FREE) | \
+ (1U << ZIO_STAGE_READY) | \
+ (1U << ZIO_STAGE_WAIT_CHILDREN_DONE) | \
+ (1U << ZIO_STAGE_DONE))
+
+#define ZIO_CLAIM_PIPELINE \
+ ((1U << ZIO_STAGE_OPEN) | \
+ (1U << ZIO_STAGE_WAIT_CHILDREN_READY) | \
+ (1U << ZIO_STAGE_GANG_PIPELINE) | \
+ (1U << ZIO_STAGE_GET_GANG_HEADER) | \
+ (1U << ZIO_STAGE_CLAIM_GANG_MEMBERS) | \
+ (1U << ZIO_STAGE_DVA_CLAIM) | \
+ (1U << ZIO_STAGE_READY) | \
+ (1U << ZIO_STAGE_WAIT_CHILDREN_DONE) | \
+ (1U << ZIO_STAGE_DONE))
+
+#define ZIO_IOCTL_PIPELINE \
+ ((1U << ZIO_STAGE_OPEN) | \
+ (1U << ZIO_STAGE_WAIT_CHILDREN_READY) | \
+ (1U << ZIO_STAGE_READY) | \
+ ZIO_VDEV_IO_PIPELINE | \
+ (1U << ZIO_STAGE_WAIT_CHILDREN_DONE) | \
+ (1U << ZIO_STAGE_DONE))
+
+#define ZIO_WAIT_FOR_CHILDREN_PIPELINE \
+ ((1U << ZIO_STAGE_WAIT_CHILDREN_READY) | \
+ (1U << ZIO_STAGE_READY) | \
+ (1U << ZIO_STAGE_WAIT_CHILDREN_DONE) | \
+ (1U << ZIO_STAGE_DONE))
+
+#define ZIO_WAIT_FOR_CHILDREN_DONE_PIPELINE \
+ ((1U << ZIO_STAGE_WAIT_CHILDREN_DONE) | \
+ (1U << ZIO_STAGE_DONE))
+
+#define ZIO_VDEV_CHILD_PIPELINE \
+ (ZIO_WAIT_FOR_CHILDREN_DONE_PIPELINE | \
+ ZIO_VDEV_IO_PIPELINE)
+
+#define ZIO_ERROR_PIPELINE_MASK \
+ ZIO_WAIT_FOR_CHILDREN_PIPELINE
+
+typedef struct zio_transform zio_transform_t;
+struct zio_transform {
+ void *zt_data;
+ uint64_t zt_size;
+ uint64_t zt_bufsize;
+ zio_transform_t *zt_next;
+};
+
+extern void zio_inject_init(void);
+extern void zio_inject_fini(void);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* _ZIO_IMPL_H */
--- /dev/null
+++ sys/cddl/contrib/opensolaris/uts/common/fs/zfs/sys/dnode.h
@@ -0,0 +1,267 @@
+/*
+ * CDDL HEADER START
+ *
+ * The contents of this file are subject to the terms of the
+ * Common Development and Distribution License (the "License").
+ * You may not use this file except in compliance with the License.
+ *
+ * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
+ * or http://www.opensolaris.org/os/licensing.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ *
+ * When distributing Covered Code, include this CDDL HEADER in each
+ * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
+ * If applicable, add the following below this CDDL HEADER, with the
+ * fields enclosed by brackets "[]" replaced with your own identifying
+ * information: Portions Copyright [yyyy] [name of copyright owner]
+ *
+ * CDDL HEADER END
+ */
+/*
+ * Copyright 2007 Sun Microsystems, Inc. All rights reserved.
+ * Use is subject to license terms.
+ */
+
+#ifndef _SYS_DNODE_H
+#define _SYS_DNODE_H
+
+#pragma ident "%Z%%M% %I% %E% SMI"
+
+#include <sys/zfs_context.h>
+#include <sys/avl.h>
+#include <sys/spa.h>
+#include <sys/txg.h>
+#include <sys/zio.h>
+#include <sys/refcount.h>
+#include <sys/dmu_zfetch.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/*
+ * Flags.
+ */
+#define DNODE_MUST_BE_ALLOCATED 1
+#define DNODE_MUST_BE_FREE 2
+
+/*
+ * Fixed constants.
+ */
+#define DNODE_SHIFT 9 /* 512 bytes */
+#define DN_MIN_INDBLKSHIFT 10 /* 1k */
+#define DN_MAX_INDBLKSHIFT 14 /* 16k */
+#define DNODE_BLOCK_SHIFT 14 /* 16k */
+#define DNODE_CORE_SIZE 64 /* 64 bytes for dnode sans blkptrs */
+#define DN_MAX_OBJECT_SHIFT 48 /* 256 trillion (zfs_fid_t limit) */
+#define DN_MAX_OFFSET_SHIFT 64 /* 2^64 bytes in a dnode */
+
+/*
+ * Derived constants.
+ */
+#define DNODE_SIZE (1 << DNODE_SHIFT)
+#define DN_MAX_NBLKPTR ((DNODE_SIZE - DNODE_CORE_SIZE) >> SPA_BLKPTRSHIFT)
+#define DN_MAX_BONUSLEN (DNODE_SIZE - DNODE_CORE_SIZE - (1 << SPA_BLKPTRSHIFT))
+#define DN_MAX_OBJECT (1ULL << DN_MAX_OBJECT_SHIFT)
+
+#define DNODES_PER_BLOCK_SHIFT (DNODE_BLOCK_SHIFT - DNODE_SHIFT)
+#define DNODES_PER_BLOCK (1ULL << DNODES_PER_BLOCK_SHIFT)
+#define DNODES_PER_LEVEL_SHIFT (DN_MAX_INDBLKSHIFT - SPA_BLKPTRSHIFT)
+
+/* The +2 here is a cheesy way to round up */
+#define DN_MAX_LEVELS (2 + ((DN_MAX_OFFSET_SHIFT - SPA_MINBLOCKSHIFT) / \
+ (DN_MIN_INDBLKSHIFT - SPA_BLKPTRSHIFT)))
+
+#define DN_BONUS(dnp) ((void*)((dnp)->dn_bonus + \
+ (((dnp)->dn_nblkptr - 1) * sizeof (blkptr_t))))
+
+#define DN_USED_BYTES(dnp) (((dnp)->dn_flags & DNODE_FLAG_USED_BYTES) ? \
+ (dnp)->dn_used : (dnp)->dn_used << SPA_MINBLOCKSHIFT)
+
+#define EPB(blkshift, typeshift) (1 << (blkshift - typeshift))
+
+struct dmu_buf_impl;
+struct objset_impl;
+struct zio;
+
+enum dnode_dirtycontext {
+ DN_UNDIRTIED,
+ DN_DIRTY_OPEN,
+ DN_DIRTY_SYNC
+};
+
+/* Is dn_used in bytes? if not, it's in multiples of SPA_MINBLOCKSIZE */
+#define DNODE_FLAG_USED_BYTES (1<<0)
+
+typedef struct dnode_phys {
+ uint8_t dn_type; /* dmu_object_type_t */
+ uint8_t dn_indblkshift; /* ln2(indirect block size) */
+ uint8_t dn_nlevels; /* 1=dn_blkptr->data blocks */
+ uint8_t dn_nblkptr; /* length of dn_blkptr */
+ uint8_t dn_bonustype; /* type of data in bonus buffer */
+ uint8_t dn_checksum; /* ZIO_CHECKSUM type */
+ uint8_t dn_compress; /* ZIO_COMPRESS type */
+ uint8_t dn_flags; /* DNODE_FLAG_* */
+ uint16_t dn_datablkszsec; /* data block size in 512b sectors */
+ uint16_t dn_bonuslen; /* length of dn_bonus */
+ uint8_t dn_pad2[4];
+
+ /* accounting is protected by dn_dirty_mtx */
+ uint64_t dn_maxblkid; /* largest allocated block ID */
+ uint64_t dn_used; /* bytes (or sectors) of disk space */
+
+ uint64_t dn_pad3[4];
+
+ blkptr_t dn_blkptr[1];
+ uint8_t dn_bonus[DN_MAX_BONUSLEN];
+} dnode_phys_t;
+
+typedef struct dnode {
+ /*
+ * dn_struct_rwlock protects the structure of the dnode,
+ * including the number of levels of indirection (dn_nlevels),
+ * dn_maxblkid, and dn_next_*
+ */
+ krwlock_t dn_struct_rwlock;
+
+ /*
+ * Our link on dataset's dd_dnodes list.
+ * Protected by dd_accounting_mtx.
+ */
+ list_node_t dn_link;
+
+ /* immutable: */
+ struct objset_impl *dn_objset;
+ uint64_t dn_object;
+ struct dmu_buf_impl *dn_dbuf;
+ dnode_phys_t *dn_phys; /* pointer into dn->dn_dbuf->db.db_data */
+
+ /*
+ * Copies of stuff in dn_phys. They're valid in the open
+ * context (eg. even before the dnode is first synced).
+ * Where necessary, these are protected by dn_struct_rwlock.
+ */
+ dmu_object_type_t dn_type; /* object type */
+ uint16_t dn_bonuslen; /* bonus length */
+ uint8_t dn_bonustype; /* bonus type */
+ uint8_t dn_nblkptr; /* number of blkptrs (immutable) */
+ uint8_t dn_checksum; /* ZIO_CHECKSUM type */
+ uint8_t dn_compress; /* ZIO_COMPRESS type */
+ uint8_t dn_nlevels;
+ uint8_t dn_indblkshift;
+ uint8_t dn_datablkshift; /* zero if blksz not power of 2! */
+ uint16_t dn_datablkszsec; /* in 512b sectors */
+ uint32_t dn_datablksz; /* in bytes */
+ uint64_t dn_maxblkid;
+ uint8_t dn_next_nlevels[TXG_SIZE];
+ uint8_t dn_next_indblkshift[TXG_SIZE];
+ uint32_t dn_next_blksz[TXG_SIZE]; /* next block size in bytes */
+
+ /* protected by os_lock: */
+ list_node_t dn_dirty_link[TXG_SIZE]; /* next on dataset's dirty */
+
+ /* protected by dn_mtx: */
+ kmutex_t dn_mtx;
+ list_t dn_dirty_records[TXG_SIZE];
+ avl_tree_t dn_ranges[TXG_SIZE];
+ uint64_t dn_allocated_txg;
+ uint64_t dn_free_txg;
+ uint64_t dn_assigned_txg;
+ kcondvar_t dn_notxholds;
+ enum dnode_dirtycontext dn_dirtyctx;
+ uint8_t *dn_dirtyctx_firstset; /* dbg: contents meaningless */
+
+ /* protected by own devices */
+ refcount_t dn_tx_holds;
+ refcount_t dn_holds;
+
+ kmutex_t dn_dbufs_mtx;
+ list_t dn_dbufs; /* linked list of descendent dbuf_t's */
+ struct dmu_buf_impl *dn_bonus; /* bonus buffer dbuf */
+
+ /* parent IO for current sync write */
+ zio_t *dn_zio;
+
+ /* holds prefetch structure */
+ struct zfetch dn_zfetch;
+} dnode_t;
+
+typedef struct free_range {
+ avl_node_t fr_node;
+ uint64_t fr_blkid;
+ uint64_t fr_nblks;
+} free_range_t;
+
+dnode_t *dnode_special_open(struct objset_impl *dd, dnode_phys_t *dnp,
+ uint64_t object);
+void dnode_special_close(dnode_t *dn);
+
+int dnode_hold(struct objset_impl *dd, uint64_t object,
+ void *ref, dnode_t **dnp);
+int dnode_hold_impl(struct objset_impl *dd, uint64_t object, int flag,
+ void *ref, dnode_t **dnp);
+void dnode_add_ref(dnode_t *dn, void *ref);
+void dnode_rele(dnode_t *dn, void *ref);
+void dnode_setdirty(dnode_t *dn, dmu_tx_t *tx);
+void dnode_sync(dnode_t *dn, dmu_tx_t *tx);
+void dnode_allocate(dnode_t *dn, dmu_object_type_t ot, int blocksize, int ibs,
+ dmu_object_type_t bonustype, int bonuslen, dmu_tx_t *tx);
+void dnode_reallocate(dnode_t *dn, dmu_object_type_t ot, int blocksize,
+ dmu_object_type_t bonustype, int bonuslen, dmu_tx_t *tx);
+void dnode_free(dnode_t *dn, dmu_tx_t *tx);
+void dnode_byteswap(dnode_phys_t *dnp);
+void dnode_buf_byteswap(void *buf, size_t size);
+void dnode_verify(dnode_t *dn);
+int dnode_set_blksz(dnode_t *dn, uint64_t size, int ibs, dmu_tx_t *tx);
+uint64_t dnode_current_max_length(dnode_t *dn);
+void dnode_free_range(dnode_t *dn, uint64_t off, uint64_t len, dmu_tx_t *tx);
+void dnode_clear_range(dnode_t *dn, uint64_t blkid,
+ uint64_t nblks, dmu_tx_t *tx);
+void dnode_diduse_space(dnode_t *dn, int64_t space);
+void dnode_willuse_space(dnode_t *dn, int64_t space, dmu_tx_t *tx);
+void dnode_new_blkid(dnode_t *dn, uint64_t blkid, dmu_tx_t *tx);
+uint64_t dnode_block_freed(dnode_t *dn, uint64_t blkid);
+void dnode_init(void);
+void dnode_fini(void);
+int dnode_next_offset(dnode_t *dn, boolean_t hole, uint64_t *off, int minlvl,
+ uint64_t blkfill, uint64_t txg);
+int dnode_evict_dbufs(dnode_t *dn, int try);
+
+#ifdef ZFS_DEBUG
+
+/*
+ * There should be a ## between the string literal and fmt, to make it
+ * clear that we're joining two strings together, but that piece of shit
+ * gcc doesn't support that preprocessor token.
+ */
+#define dprintf_dnode(dn, fmt, ...) do { \
+ if (zfs_flags & ZFS_DEBUG_DPRINTF) { \
+ char __db_buf[32]; \
+ uint64_t __db_obj = (dn)->dn_object; \
+ if (__db_obj == DMU_META_DNODE_OBJECT) \
+ (void) strcpy(__db_buf, "mdn"); \
+ else \
+ (void) snprintf(__db_buf, sizeof (__db_buf), "%lld", \
+ (u_longlong_t)__db_obj);\
+ dprintf_ds((dn)->dn_objset->os_dsl_dataset, "obj=%s " fmt, \
+ __db_buf, __VA_ARGS__); \
+ } \
+_NOTE(CONSTCOND) } while (0)
+
+#define DNODE_VERIFY(dn) dnode_verify(dn)
+#define FREE_VERIFY(db, start, end, tx) free_verify(db, start, end, tx)
+
+#else
+
+#define dprintf_dnode(db, fmt, ...)
+#define DNODE_VERIFY(dn)
+#define FREE_VERIFY(db, start, end, tx)
+
+#endif
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* _SYS_DNODE_H */
--- /dev/null
+++ sys/cddl/contrib/opensolaris/uts/common/fs/zfs/sys/zio.h
@@ -0,0 +1,366 @@
+/*
+ * CDDL HEADER START
+ *
+ * The contents of this file are subject to the terms of the
+ * Common Development and Distribution License (the "License").
+ * You may not use this file except in compliance with the License.
+ *
+ * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
+ * or http://www.opensolaris.org/os/licensing.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ *
+ * When distributing Covered Code, include this CDDL HEADER in each
+ * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
+ * If applicable, add the following below this CDDL HEADER, with the
+ * fields enclosed by brackets "[]" replaced with your own identifying
+ * information: Portions Copyright [yyyy] [name of copyright owner]
+ *
+ * CDDL HEADER END
+ */
+
+/*
+ * Copyright 2007 Sun Microsystems, Inc. All rights reserved.
+ * Use is subject to license terms.
+ */
+
+#ifndef _ZIO_H
+#define _ZIO_H
+
+#pragma ident "%Z%%M% %I% %E% SMI"
+
+#include <sys/zfs_context.h>
+#include <sys/spa.h>
+#include <sys/txg.h>
+#include <sys/avl.h>
+#include <sys/dkio.h>
+#include <sys/fs/zfs.h>
+#include <sys/zio_impl.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#define ZBT_MAGIC 0x210da7ab10c7a11ULL /* zio data bloc tail */
+
+typedef struct zio_block_tail {
+ uint64_t zbt_magic; /* for validation, endianness */
+ zio_cksum_t zbt_cksum; /* 256-bit checksum */
+} zio_block_tail_t;
+
+/*
+ * Gang block headers are self-checksumming and contain an array
+ * of block pointers.
+ */
+#define SPA_GANGBLOCKSIZE SPA_MINBLOCKSIZE
+#define SPA_GBH_NBLKPTRS ((SPA_GANGBLOCKSIZE - \
+ sizeof (zio_block_tail_t)) / sizeof (blkptr_t))
+#define SPA_GBH_FILLER ((SPA_GANGBLOCKSIZE - \
+ sizeof (zio_block_tail_t) - \
+ (SPA_GBH_NBLKPTRS * sizeof (blkptr_t))) /\
+ sizeof (uint64_t))
+
+#define ZIO_GET_IOSIZE(zio) \
+ (BP_IS_GANG((zio)->io_bp) ? \
+ SPA_GANGBLOCKSIZE : BP_GET_PSIZE((zio)->io_bp))
+
+typedef struct zio_gbh {
+ blkptr_t zg_blkptr[SPA_GBH_NBLKPTRS];
+ uint64_t zg_filler[SPA_GBH_FILLER];
+ zio_block_tail_t zg_tail;
+} zio_gbh_phys_t;
+
+enum zio_checksum {
+ ZIO_CHECKSUM_INHERIT = 0,
+ ZIO_CHECKSUM_ON,
+ ZIO_CHECKSUM_OFF,
+ ZIO_CHECKSUM_LABEL,
+ ZIO_CHECKSUM_GANG_HEADER,
+ ZIO_CHECKSUM_ZILOG,
+ ZIO_CHECKSUM_FLETCHER_2,
+ ZIO_CHECKSUM_FLETCHER_4,
+ ZIO_CHECKSUM_SHA256,
+ ZIO_CHECKSUM_FUNCTIONS
+};
+
+#define ZIO_CHECKSUM_ON_VALUE ZIO_CHECKSUM_FLETCHER_2
+#define ZIO_CHECKSUM_DEFAULT ZIO_CHECKSUM_ON
+
+enum zio_compress {
+ ZIO_COMPRESS_INHERIT = 0,
+ ZIO_COMPRESS_ON,
+ ZIO_COMPRESS_OFF,
+ ZIO_COMPRESS_LZJB,
+ ZIO_COMPRESS_EMPTY,
+ ZIO_COMPRESS_GZIP_1,
+ ZIO_COMPRESS_GZIP_2,
+ ZIO_COMPRESS_GZIP_3,
+ ZIO_COMPRESS_GZIP_4,
+ ZIO_COMPRESS_GZIP_5,
+ ZIO_COMPRESS_GZIP_6,
+ ZIO_COMPRESS_GZIP_7,
+ ZIO_COMPRESS_GZIP_8,
+ ZIO_COMPRESS_GZIP_9,
+ ZIO_COMPRESS_FUNCTIONS
+};
+
+#define ZIO_COMPRESS_ON_VALUE ZIO_COMPRESS_LZJB
+#define ZIO_COMPRESS_DEFAULT ZIO_COMPRESS_OFF
+
+#define ZIO_PRIORITY_NOW (zio_priority_table[0])
+#define ZIO_PRIORITY_SYNC_READ (zio_priority_table[1])
+#define ZIO_PRIORITY_SYNC_WRITE (zio_priority_table[2])
+#define ZIO_PRIORITY_ASYNC_READ (zio_priority_table[3])
+#define ZIO_PRIORITY_ASYNC_WRITE (zio_priority_table[4])
+#define ZIO_PRIORITY_FREE (zio_priority_table[5])
+#define ZIO_PRIORITY_CACHE_FILL (zio_priority_table[6])
+#define ZIO_PRIORITY_LOG_WRITE (zio_priority_table[7])
+#define ZIO_PRIORITY_RESILVER (zio_priority_table[8])
+#define ZIO_PRIORITY_SCRUB (zio_priority_table[9])
+#define ZIO_PRIORITY_TABLE_SIZE 10
+
+#define ZIO_FLAG_MUSTSUCCEED 0x00000
+#define ZIO_FLAG_CANFAIL 0x00001
+#define ZIO_FLAG_FAILFAST 0x00002
+#define ZIO_FLAG_CONFIG_HELD 0x00004
+#define ZIO_FLAG_CONFIG_GRABBED 0x00008
+
+#define ZIO_FLAG_DONT_CACHE 0x00010
+#define ZIO_FLAG_DONT_QUEUE 0x00020
+#define ZIO_FLAG_DONT_PROPAGATE 0x00040
+#define ZIO_FLAG_DONT_RETRY 0x00080
+
+#define ZIO_FLAG_PHYSICAL 0x00100
+#define ZIO_FLAG_IO_BYPASS 0x00200
+#define ZIO_FLAG_IO_REPAIR 0x00400
+#define ZIO_FLAG_SPECULATIVE 0x00800
+
+#define ZIO_FLAG_RESILVER 0x01000
+#define ZIO_FLAG_SCRUB 0x02000
+#define ZIO_FLAG_SCRUB_THREAD 0x04000
+#define ZIO_FLAG_SUBBLOCK 0x08000
+
+#define ZIO_FLAG_NOBOOKMARK 0x10000
+#define ZIO_FLAG_USER 0x20000
+
+#define ZIO_FLAG_METADATA 0x40000
+
+#define ZIO_FLAG_GANG_INHERIT \
+ (ZIO_FLAG_CANFAIL | \
+ ZIO_FLAG_FAILFAST | \
+ ZIO_FLAG_CONFIG_HELD | \
+ ZIO_FLAG_DONT_RETRY | \
+ ZIO_FLAG_IO_REPAIR | \
+ ZIO_FLAG_SPECULATIVE | \
+ ZIO_FLAG_RESILVER | \
+ ZIO_FLAG_SCRUB | \
+ ZIO_FLAG_SCRUB_THREAD)
+
+#define ZIO_FLAG_VDEV_INHERIT \
+ (ZIO_FLAG_GANG_INHERIT | \
+ ZIO_FLAG_DONT_CACHE | \
+ ZIO_FLAG_PHYSICAL)
+
+/*
+ * We'll take the EILSEQ (Illegal byte sequence) errno
+ * to indicate checksum errors.
+ */
+#define ECKSUM EILSEQ
+
+typedef struct zio zio_t;
+typedef void zio_done_func_t(zio_t *zio);
+
+extern uint8_t zio_priority_table[ZIO_PRIORITY_TABLE_SIZE];
+extern char *zio_type_name[ZIO_TYPES];
+
+/*
+ * A bookmark is a four-tuple <objset, object, level, blkid> that uniquely
+ * identifies any block in the pool. By convention, the meta-objset (MOS)
+ * is objset 0, the meta-dnode is object 0, the root block (osphys_t) is
+ * level -1 of the meta-dnode, and intent log blocks (which are chained
+ * off the root block) have blkid == sequence number. In summary:
+ *
+ * mos is objset 0
+ * meta-dnode is object 0
+ * root block is <objset, 0, -1, 0>
+ * intent log is <objset, 0, -1, ZIL sequence number>
+ *
+ * Note: this structure is called a bookmark because its first purpose was
+ * to remember where to resume a pool-wide traverse. The absolute ordering
+ * for block visitation during traversal is defined in compare_bookmark().
+ *
+ * Note: this structure is passed between userland and the kernel.
+ * Therefore it must not change size or alignment between 32/64 bit
+ * compilation options.
+ */
+typedef struct zbookmark {
+ uint64_t zb_objset;
+ uint64_t zb_object;
+ int64_t zb_level;
+ uint64_t zb_blkid;
+} zbookmark_t;
+
+struct zio {
+ /* Core information about this I/O */
+ zio_t *io_parent;
+ zio_t *io_root;
+ spa_t *io_spa;
+ zbookmark_t io_bookmark;
+ enum zio_checksum io_checksum;
+ enum zio_compress io_compress;
+ int io_ndvas;
+ uint64_t io_txg;
+ blkptr_t *io_bp;
+ blkptr_t io_bp_copy;
+ zio_t *io_child;
+ zio_t *io_sibling_prev;
+ zio_t *io_sibling_next;
+ zio_transform_t *io_transform_stack;
+ zio_t *io_logical;
+
+ /* Callback info */
+ zio_done_func_t *io_ready;
+ zio_done_func_t *io_done;
+ void *io_private;
+ blkptr_t io_bp_orig;
+
+ /* Data represented by this I/O */
+ void *io_data;
+ uint64_t io_size;
+
+ /* Stuff for the vdev stack */
+ vdev_t *io_vd;
+ void *io_vsd;
+ uint64_t io_offset;
+ uint64_t io_deadline;
+ uint64_t io_timestamp;
+ avl_node_t io_offset_node;
+ avl_node_t io_deadline_node;
+ avl_tree_t *io_vdev_tree;
+ zio_t *io_delegate_list;
+ zio_t *io_delegate_next;
+
+ /* Internal pipeline state */
+ int io_flags;
+ enum zio_type io_type;
+ enum zio_stage io_stage;
+ uint8_t io_stalled;
+ uint8_t io_priority;
+ struct dk_callback io_dk_callback;
+ int io_cmd;
+ int io_retries;
+ int io_error;
+ uint32_t io_numerrors;
+ uint32_t io_pipeline;
+ uint32_t io_async_stages;
+ uint64_t io_children_notready;
+ uint64_t io_children_notdone;
+ void *io_waiter;
+ kmutex_t io_lock;
+ kcondvar_t io_cv;
+
+ /* FMA state */
+ uint64_t io_ena;
+};
+
+extern zio_t *zio_null(zio_t *pio, spa_t *spa,
+ zio_done_func_t *done, void *private, int flags);
+
+extern zio_t *zio_root(spa_t *spa,
+ zio_done_func_t *done, void *private, int flags);
+
+extern zio_t *zio_read(zio_t *pio, spa_t *spa, blkptr_t *bp, void *data,
+ uint64_t size, zio_done_func_t *done, void *private,
+ int priority, int flags, zbookmark_t *zb);
+
+extern zio_t *zio_write(zio_t *pio, spa_t *spa, int checksum, int compress,
+ int ncopies, uint64_t txg, blkptr_t *bp, void *data, uint64_t size,
+ zio_done_func_t *ready, zio_done_func_t *done, void *private, int priority,
+ int flags, zbookmark_t *zb);
+
+extern zio_t *zio_rewrite(zio_t *pio, spa_t *spa, int checksum,
+ uint64_t txg, blkptr_t *bp, void *data, uint64_t size,
+ zio_done_func_t *done, void *private, int priority, int flags,
+ zbookmark_t *zb);
+
+extern zio_t *zio_free(zio_t *pio, spa_t *spa, uint64_t txg, blkptr_t *bp,
+ zio_done_func_t *done, void *private);
+
+extern zio_t *zio_claim(zio_t *pio, spa_t *spa, uint64_t txg, blkptr_t *bp,
+ zio_done_func_t *done, void *private);
+
+extern zio_t *zio_ioctl(zio_t *pio, spa_t *spa, vdev_t *vd, int cmd,
+ zio_done_func_t *done, void *private, int priority, int flags);
+
+extern zio_t *zio_read_phys(zio_t *pio, vdev_t *vd, uint64_t offset,
+ uint64_t size, void *data, int checksum,
+ zio_done_func_t *done, void *private, int priority, int flags);
+
+extern zio_t *zio_write_phys(zio_t *pio, vdev_t *vd, uint64_t offset,
+ uint64_t size, void *data, int checksum,
+ zio_done_func_t *done, void *private, int priority, int flags);
+
+extern int zio_alloc_blk(spa_t *spa, uint64_t size, blkptr_t *new_bp,
+ blkptr_t *old_bp, uint64_t txg);
+extern void zio_free_blk(spa_t *spa, blkptr_t *bp, uint64_t txg);
+
+extern int zio_wait(zio_t *zio);
+extern void zio_nowait(zio_t *zio);
+
+extern void *zio_buf_alloc(size_t size);
+extern void zio_buf_free(void *buf, size_t size);
+extern void *zio_data_buf_alloc(size_t size);
+extern void zio_data_buf_free(void *buf, size_t size);
+
+/*
+ * Move an I/O to the next stage of the pipeline and execute that stage.
+ * There's no locking on io_stage because there's no legitimate way for
+ * multiple threads to be attempting to process the same I/O.
+ */
+extern void zio_next_stage(zio_t *zio);
+extern void zio_next_stage_async(zio_t *zio);
+extern void zio_wait_children_done(zio_t *zio);
+
+/*
+ * Delegate I/O to a child vdev.
+ */
+extern zio_t *zio_vdev_child_io(zio_t *zio, blkptr_t *bp, vdev_t *vd,
+ uint64_t offset, void *data, uint64_t size, int type, int priority,
+ int flags, zio_done_func_t *done, void *private);
+
+extern void zio_vdev_io_bypass(zio_t *zio);
+extern void zio_vdev_io_reissue(zio_t *zio);
+extern void zio_vdev_io_redone(zio_t *zio);
+
+extern void zio_checksum_verified(zio_t *zio);
+extern void zio_set_gang_verifier(zio_t *zio, zio_cksum_t *zcp);
+
+extern uint8_t zio_checksum_select(uint8_t child, uint8_t parent);
+extern uint8_t zio_compress_select(uint8_t child, uint8_t parent);
+
+boolean_t zio_should_retry(zio_t *zio);
+
+/*
+ * Initial setup and teardown.
+ */
+extern void zio_init(void);
+extern void zio_fini(void);
+
+/*
+ * Fault injection
+ */
+struct zinject_record;
+extern uint32_t zio_injection_enabled;
+extern int zio_inject_fault(char *name, int flags, int *id,
+ struct zinject_record *record);
+extern int zio_inject_list_next(int *id, char *name, size_t buflen,
+ struct zinject_record *record);
+extern int zio_clear_fault(int id);
+extern int zio_handle_fault_injection(zio_t *zio, int error);
+extern int zio_handle_device_injection(vdev_t *vd, int error);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* _ZIO_H */
--- /dev/null
+++ sys/cddl/contrib/opensolaris/uts/common/fs/zfs/sys/bplist.h
@@ -0,0 +1,89 @@
+/*
+ * CDDL HEADER START
+ *
+ * The contents of this file are subject to the terms of the
+ * Common Development and Distribution License (the "License").
+ * You may not use this file except in compliance with the License.
+ *
+ * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
+ * or http://www.opensolaris.org/os/licensing.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ *
+ * When distributing Covered Code, include this CDDL HEADER in each
+ * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
+ * If applicable, add the following below this CDDL HEADER, with the
+ * fields enclosed by brackets "[]" replaced with your own identifying
+ * information: Portions Copyright [yyyy] [name of copyright owner]
+ *
+ * CDDL HEADER END
+ */
+/*
+ * Copyright 2006 Sun Microsystems, Inc. All rights reserved.
+ * Use is subject to license terms.
+ */
+
+#ifndef _SYS_BPLIST_H
+#define _SYS_BPLIST_H
+
+#pragma ident "%Z%%M% %I% %E% SMI"
+
+#include <sys/dmu.h>
+#include <sys/spa.h>
+#include <sys/txg.h>
+#include <sys/zfs_context.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+typedef struct bplist_phys {
+ /*
+ * This is the bonus buffer for the dead lists. The object's
+ * contents is an array of bpl_entries blkptr_t's, representing
+ * a total of bpl_bytes physical space.
+ */
+ uint64_t bpl_entries;
+ uint64_t bpl_bytes;
+ uint64_t bpl_comp;
+ uint64_t bpl_uncomp;
+} bplist_phys_t;
+
+#define BPLIST_SIZE_V0 (2 * sizeof (uint64_t))
+
+typedef struct bplist_q {
+ blkptr_t bpq_blk;
+ void *bpq_next;
+} bplist_q_t;
+
+typedef struct bplist {
+ kmutex_t bpl_lock;
+ objset_t *bpl_mos;
+ uint64_t bpl_object;
+ uint8_t bpl_blockshift;
+ uint8_t bpl_bpshift;
+ uint8_t bpl_havecomp;
+ bplist_q_t *bpl_queue;
+ bplist_phys_t *bpl_phys;
+ dmu_buf_t *bpl_dbuf;
+ dmu_buf_t *bpl_cached_dbuf;
+} bplist_t;
+
+extern uint64_t bplist_create(objset_t *mos, int blocksize, dmu_tx_t *tx);
+extern void bplist_destroy(objset_t *mos, uint64_t object, dmu_tx_t *tx);
+extern int bplist_open(bplist_t *bpl, objset_t *mos, uint64_t object);
+extern void bplist_close(bplist_t *bpl);
+extern boolean_t bplist_empty(bplist_t *bpl);
+extern int bplist_iterate(bplist_t *bpl, uint64_t *itorp, blkptr_t *bp);
+extern int bplist_enqueue(bplist_t *bpl, blkptr_t *bp, dmu_tx_t *tx);
+extern void bplist_enqueue_deferred(bplist_t *bpl, blkptr_t *bp);
+extern void bplist_sync(bplist_t *bpl, dmu_tx_t *tx);
+extern void bplist_vacate(bplist_t *bpl, dmu_tx_t *tx);
+extern int bplist_space(bplist_t *bpl,
+ uint64_t *usedp, uint64_t *compp, uint64_t *uncompp);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* _SYS_BPLIST_H */
--- /dev/null
+++ sys/cddl/contrib/opensolaris/uts/common/fs/zfs/sys/unique.h
@@ -0,0 +1,56 @@
+/*
+ * CDDL HEADER START
+ *
+ * The contents of this file are subject to the terms of the
+ * Common Development and Distribution License, Version 1.0 only
+ * (the "License"). You may not use this file except in compliance
+ * with the License.
+ *
+ * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
+ * or http://www.opensolaris.org/os/licensing.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ *
+ * When distributing Covered Code, include this CDDL HEADER in each
+ * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
+ * If applicable, add the following below this CDDL HEADER, with the
+ * fields enclosed by brackets "[]" replaced with your own identifying
+ * information: Portions Copyright [yyyy] [name of copyright owner]
+ *
+ * CDDL HEADER END
+ */
+/*
+ * Copyright 2005 Sun Microsystems, Inc. All rights reserved.
+ * Use is subject to license terms.
+ */
+
+#ifndef _SYS_UNIQUE_H
+#define _SYS_UNIQUE_H
+
+#pragma ident "%Z%%M% %I% %E% SMI"
+
+#include <sys/zfs_context.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/* The number of significant bits in each unique value. */
+#define UNIQUE_BITS 56
+
+void unique_init(void);
+
+/* Return a new unique value. */
+uint64_t unique_create(void);
+
+/* Return a unique value, which equals the one passed in if possible. */
+uint64_t unique_insert(uint64_t value);
+
+/* Indicate that this value no longer needs to be uniquified against. */
+void unique_remove(uint64_t value);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* _SYS_UNIQUE_H */
--- /dev/null
+++ sys/cddl/contrib/opensolaris/uts/common/fs/zfs/sys/zio_checksum.h
@@ -0,0 +1,75 @@
+/*
+ * CDDL HEADER START
+ *
+ * The contents of this file are subject to the terms of the
+ * Common Development and Distribution License (the "License").
+ * You may not use this file except in compliance with the License.
+ *
+ * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
+ * or http://www.opensolaris.org/os/licensing.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ *
+ * When distributing Covered Code, include this CDDL HEADER in each
+ * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
+ * If applicable, add the following below this CDDL HEADER, with the
+ * fields enclosed by brackets "[]" replaced with your own identifying
+ * information: Portions Copyright [yyyy] [name of copyright owner]
+ *
+ * CDDL HEADER END
+ */
+/*
+ * Copyright 2006 Sun Microsystems, Inc. All rights reserved.
+ * Use is subject to license terms.
+ */
+
+#ifndef _SYS_ZIO_CHECKSUM_H
+#define _SYS_ZIO_CHECKSUM_H
+
+#pragma ident "%Z%%M% %I% %E% SMI"
+
+#include <sys/zio.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/*
+ * Signature for checksum functions.
+ */
+typedef void zio_checksum_t(const void *data, uint64_t size, zio_cksum_t *zcp);
+
+/*
+ * Information about each checksum function.
+ */
+typedef struct zio_checksum_info {
+ zio_checksum_t *ci_func[2]; /* checksum function for each byteorder */
+ int ci_correctable; /* number of correctable bits */
+ int ci_zbt; /* uses zio block tail? */
+ char *ci_name; /* descriptive name */
+} zio_checksum_info_t;
+
+extern zio_checksum_info_t zio_checksum_table[ZIO_CHECKSUM_FUNCTIONS];
+
+/*
+ * Checksum routines.
+ */
+extern zio_checksum_t fletcher_2_native;
+extern zio_checksum_t fletcher_4_native;
+extern zio_checksum_t fletcher_4_incremental_native;
+
+extern zio_checksum_t fletcher_2_byteswap;
+extern zio_checksum_t fletcher_4_byteswap;
+extern zio_checksum_t fletcher_4_incremental_byteswap;
+
+extern zio_checksum_t zio_checksum_SHA256;
+
+extern void zio_checksum(uint_t checksum, zio_cksum_t *zcp,
+ void *data, uint64_t size);
+extern int zio_checksum_error(zio_t *zio);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* _SYS_ZIO_CHECKSUM_H */
--- /dev/null
+++ sys/cddl/contrib/opensolaris/uts/common/fs/zfs/sys/dmu_tx.h
@@ -0,0 +1,134 @@
+/*
+ * CDDL HEADER START
+ *
+ * The contents of this file are subject to the terms of the
+ * Common Development and Distribution License (the "License").
+ * You may not use this file except in compliance with the License.
+ *
+ * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
+ * or http://www.opensolaris.org/os/licensing.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ *
+ * When distributing Covered Code, include this CDDL HEADER in each
+ * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
+ * If applicable, add the following below this CDDL HEADER, with the
+ * fields enclosed by brackets "[]" replaced with your own identifying
+ * information: Portions Copyright [yyyy] [name of copyright owner]
+ *
+ * CDDL HEADER END
+ */
+/*
+ * Copyright 2006 Sun Microsystems, Inc. All rights reserved.
+ * Use is subject to license terms.
+ */
+
+#ifndef _SYS_DMU_TX_H
+#define _SYS_DMU_TX_H
+
+#pragma ident "%Z%%M% %I% %E% SMI"
+
+#include <sys/dmu.h>
+#include <sys/txg.h>
+#include <sys/refcount.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+struct dmu_buf_impl;
+struct dmu_tx_hold;
+struct dnode_link;
+struct dsl_pool;
+struct dnode;
+struct dsl_dir;
+
+struct dmu_tx {
+ /*
+ * No synchronization is needed because a tx can only be handled
+ * by one thread.
+ */
+ list_t tx_holds; /* list of dmu_tx_hold_t */
+ objset_t *tx_objset;
+ struct dsl_dir *tx_dir;
+ struct dsl_pool *tx_pool;
+ uint64_t tx_txg;
+ uint64_t tx_lastsnap_txg;
+ uint64_t tx_lasttried_txg;
+ txg_handle_t tx_txgh;
+ void *tx_tempreserve_cookie;
+ struct dmu_tx_hold *tx_needassign_txh;
+ uint8_t tx_anyobj;
+ int tx_err;
+#ifdef ZFS_DEBUG
+ uint64_t tx_space_towrite;
+ uint64_t tx_space_tofree;
+ uint64_t tx_space_tooverwrite;
+ refcount_t tx_space_written;
+ refcount_t tx_space_freed;
+#endif
+};
+
+enum dmu_tx_hold_type {
+ THT_NEWOBJECT,
+ THT_WRITE,
+ THT_BONUS,
+ THT_FREE,
+ THT_ZAP,
+ THT_SPACE,
+ THT_NUMTYPES
+};
+
+typedef struct dmu_tx_hold {
+ dmu_tx_t *txh_tx;
+ list_node_t txh_node;
+ struct dnode *txh_dnode;
+ uint64_t txh_space_towrite;
+ uint64_t txh_space_tofree;
+ uint64_t txh_space_tooverwrite;
+#ifdef ZFS_DEBUG
+ enum dmu_tx_hold_type txh_type;
+ uint64_t txh_arg1;
+ uint64_t txh_arg2;
+#endif
+} dmu_tx_hold_t;
+
+
+/*
+ * These routines are defined in dmu.h, and are called by the user.
+ */
+dmu_tx_t *dmu_tx_create(objset_t *dd);
+int dmu_tx_assign(dmu_tx_t *tx, uint64_t txg_how);
+void dmu_tx_commit(dmu_tx_t *tx);
+void dmu_tx_abort(dmu_tx_t *tx);
+uint64_t dmu_tx_get_txg(dmu_tx_t *tx);
+void dmu_tx_wait(dmu_tx_t *tx);
+
+/*
+ * These routines are defined in dmu_spa.h, and are called by the SPA.
+ */
+extern dmu_tx_t *dmu_tx_create_assigned(struct dsl_pool *dp, uint64_t txg);
+
+/*
+ * These routines are only called by the DMU.
+ */
+dmu_tx_t *dmu_tx_create_dd(dsl_dir_t *dd);
+int dmu_tx_is_syncing(dmu_tx_t *tx);
+int dmu_tx_private_ok(dmu_tx_t *tx);
+void dmu_tx_add_new_object(dmu_tx_t *tx, objset_t *os, uint64_t object);
+void dmu_tx_willuse_space(dmu_tx_t *tx, int64_t delta);
+void dmu_tx_dirty_buf(dmu_tx_t *tx, struct dmu_buf_impl *db);
+int dmu_tx_holds(dmu_tx_t *tx, uint64_t object);
+void dmu_tx_hold_space(dmu_tx_t *tx, uint64_t space);
+
+#ifdef ZFS_DEBUG
+#define DMU_TX_DIRTY_BUF(tx, db) dmu_tx_dirty_buf(tx, db)
+#else
+#define DMU_TX_DIRTY_BUF(tx, db)
+#endif
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* _SYS_DMU_TX_H */
--- /dev/null
+++ sys/cddl/contrib/opensolaris/uts/common/fs/zfs/sys/dsl_dataset.h
@@ -0,0 +1,185 @@
+/*
+ * CDDL HEADER START
+ *
+ * The contents of this file are subject to the terms of the
+ * Common Development and Distribution License (the "License").
+ * You may not use this file except in compliance with the License.
+ *
+ * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
+ * or http://www.opensolaris.org/os/licensing.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ *
+ * When distributing Covered Code, include this CDDL HEADER in each
+ * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
+ * If applicable, add the following below this CDDL HEADER, with the
+ * fields enclosed by brackets "[]" replaced with your own identifying
+ * information: Portions Copyright [yyyy] [name of copyright owner]
+ *
+ * CDDL HEADER END
+ */
+/*
+ * Copyright 2007 Sun Microsystems, Inc. All rights reserved.
+ * Use is subject to license terms.
+ */
+
+#ifndef _SYS_DSL_DATASET_H
+#define _SYS_DSL_DATASET_H
+
+#pragma ident "%Z%%M% %I% %E% SMI"
+
+#include <sys/dmu.h>
+#include <sys/spa.h>
+#include <sys/txg.h>
+#include <sys/zio.h>
+#include <sys/bplist.h>
+#include <sys/dsl_synctask.h>
+#include <sys/zfs_context.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+struct dsl_dataset;
+struct dsl_dir;
+struct dsl_pool;
+
+typedef void dsl_dataset_evict_func_t(struct dsl_dataset *, void *);
+
+#define DS_FLAG_INCONSISTENT (1ULL<<0)
+/*
+ * NB: nopromote can not yet be set, but we want support for it in this
+ * on-disk version, so that we don't need to upgrade for it later. It
+ * will be needed when we implement 'zfs split' (where the split off
+ * clone should not be promoted).
+ */
+#define DS_FLAG_NOPROMOTE (1ULL<<1)
+
+typedef struct dsl_dataset_phys {
+ uint64_t ds_dir_obj;
+ uint64_t ds_prev_snap_obj;
+ uint64_t ds_prev_snap_txg;
+ uint64_t ds_next_snap_obj;
+ uint64_t ds_snapnames_zapobj; /* zap obj of snaps; ==0 for snaps */
+ uint64_t ds_num_children; /* clone/snap children; ==0 for head */
+ uint64_t ds_creation_time; /* seconds since 1970 */
+ uint64_t ds_creation_txg;
+ uint64_t ds_deadlist_obj;
+ uint64_t ds_used_bytes;
+ uint64_t ds_compressed_bytes;
+ uint64_t ds_uncompressed_bytes;
+ uint64_t ds_unique_bytes; /* only relevant to snapshots */
+ /*
+ * The ds_fsid_guid is a 56-bit ID that can change to avoid
+ * collisions. The ds_guid is a 64-bit ID that will never
+ * change, so there is a small probability that it will collide.
+ */
+ uint64_t ds_fsid_guid;
+ uint64_t ds_guid;
+ uint64_t ds_flags;
+ blkptr_t ds_bp;
+ uint64_t ds_pad[8]; /* pad out to 320 bytes for good measure */
+} dsl_dataset_phys_t;
+
+typedef struct dsl_dataset {
+ /* Immutable: */
+ struct dsl_dir *ds_dir;
+ dsl_dataset_phys_t *ds_phys;
+ dmu_buf_t *ds_dbuf;
+ uint64_t ds_object;
+
+ /* only used in syncing context: */
+ struct dsl_dataset *ds_prev; /* only valid for non-snapshots */
+
+ /* has internal locking: */
+ bplist_t ds_deadlist;
+
+ /* protected by lock on pool's dp_dirty_datasets list */
+ txg_node_t ds_dirty_link;
+ list_node_t ds_synced_link;
+
+ /*
+ * ds_phys->ds_<accounting> is also protected by ds_lock.
+ * Protected by ds_lock:
+ */
+ kmutex_t ds_lock;
+ void *ds_user_ptr;
+ dsl_dataset_evict_func_t *ds_user_evict_func;
+ uint64_t ds_open_refcount;
+
+ /* no locking; only for making guesses */
+ uint64_t ds_trysnap_txg;
+
+ /* Protected by ds_lock; keep at end of struct for better locality */
+ char ds_snapname[MAXNAMELEN];
+} dsl_dataset_t;
+
+#define dsl_dataset_is_snapshot(ds) \
+ ((ds)->ds_phys->ds_num_children != 0)
+
+int dsl_dataset_open_spa(spa_t *spa, const char *name, int mode,
+ void *tag, dsl_dataset_t **dsp);
+int dsl_dataset_open(const char *name, int mode, void *tag,
+ dsl_dataset_t **dsp);
+int dsl_dataset_open_obj(struct dsl_pool *dp, uint64_t dsobj,
+ const char *tail, int mode, void *tag, dsl_dataset_t **);
+void dsl_dataset_name(dsl_dataset_t *ds, char *name);
+void dsl_dataset_close(dsl_dataset_t *ds, int mode, void *tag);
+uint64_t dsl_dataset_create_sync(dsl_dir_t *pds,
+ const char *lastname, dsl_dataset_t *clone_parent, dmu_tx_t *tx);
+int dsl_dataset_destroy(const char *name);
+int dsl_snapshots_destroy(char *fsname, char *snapname);
+dsl_checkfunc_t dsl_dataset_snapshot_check;
+dsl_syncfunc_t dsl_dataset_snapshot_sync;
+int dsl_dataset_rollback(dsl_dataset_t *ds);
+int dsl_dataset_rename(char *name, const char *newname, boolean_t recursive);
+int dsl_dataset_promote(const char *name);
+
+void *dsl_dataset_set_user_ptr(dsl_dataset_t *ds,
+ void *p, dsl_dataset_evict_func_t func);
+void *dsl_dataset_get_user_ptr(dsl_dataset_t *ds);
+
+blkptr_t *dsl_dataset_get_blkptr(dsl_dataset_t *ds);
+void dsl_dataset_set_blkptr(dsl_dataset_t *ds, blkptr_t *bp, dmu_tx_t *tx);
+
+spa_t *dsl_dataset_get_spa(dsl_dataset_t *ds);
+
+void dsl_dataset_sync(dsl_dataset_t *os, zio_t *zio, dmu_tx_t *tx);
+
+void dsl_dataset_block_born(dsl_dataset_t *ds, blkptr_t *bp, dmu_tx_t *tx);
+void dsl_dataset_block_kill(dsl_dataset_t *ds, blkptr_t *bp, zio_t *pio,
+ dmu_tx_t *tx);
+int dsl_dataset_block_freeable(dsl_dataset_t *ds, uint64_t blk_birth);
+uint64_t dsl_dataset_prev_snap_txg(dsl_dataset_t *ds);
+
+void dsl_dataset_dirty(dsl_dataset_t *ds, dmu_tx_t *tx);
+void dsl_dataset_stats(dsl_dataset_t *os, nvlist_t *nv);
+void dsl_dataset_fast_stat(dsl_dataset_t *ds, dmu_objset_stats_t *stat);
+void dsl_dataset_space(dsl_dataset_t *ds,
+ uint64_t *refdbytesp, uint64_t *availbytesp,
+ uint64_t *usedobjsp, uint64_t *availobjsp);
+uint64_t dsl_dataset_fsid_guid(dsl_dataset_t *ds);
+
+void dsl_dataset_create_root(struct dsl_pool *dp, uint64_t *ddobjp,
+ dmu_tx_t *tx);
+
+int dsl_dsobj_to_dsname(char *pname, uint64_t obj, char *buf);
+
+#ifdef ZFS_DEBUG
+#define dprintf_ds(ds, fmt, ...) do { \
+ if (zfs_flags & ZFS_DEBUG_DPRINTF) { \
+ char *__ds_name = kmem_alloc(MAXNAMELEN, KM_SLEEP); \
+ dsl_dataset_name(ds, __ds_name); \
+ dprintf("ds=%s " fmt, __ds_name, __VA_ARGS__); \
+ kmem_free(__ds_name, MAXNAMELEN); \
+ } \
+_NOTE(CONSTCOND) } while (0)
+#else
+#define dprintf_ds(dd, fmt, ...)
+#endif
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* _SYS_DSL_DATASET_H */
--- /dev/null
+++ sys/cddl/contrib/opensolaris/uts/common/fs/zfs/sys/dbuf.h
@@ -0,0 +1,334 @@
+/*
+ * CDDL HEADER START
+ *
+ * The contents of this file are subject to the terms of the
+ * Common Development and Distribution License (the "License").
+ * You may not use this file except in compliance with the License.
+ *
+ * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
+ * or http://www.opensolaris.org/os/licensing.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ *
+ * When distributing Covered Code, include this CDDL HEADER in each
+ * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
+ * If applicable, add the following below this CDDL HEADER, with the
+ * fields enclosed by brackets "[]" replaced with your own identifying
+ * information: Portions Copyright [yyyy] [name of copyright owner]
+ *
+ * CDDL HEADER END
+ */
+/*
+ * Copyright 2007 Sun Microsystems, Inc. All rights reserved.
+ * Use is subject to license terms.
+ */
+
+#ifndef _SYS_DBUF_H
+#define _SYS_DBUF_H
+
+#pragma ident "%Z%%M% %I% %E% SMI"
+
+#include <sys/dmu.h>
+#include <sys/spa.h>
+#include <sys/txg.h>
+#include <sys/zio.h>
+#include <sys/arc.h>
+#include <sys/zfs_context.h>
+#include <sys/refcount.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#define DB_BONUS_BLKID (-1ULL)
+#define IN_DMU_SYNC 2
+
+/*
+ * define flags for dbuf_read
+ */
+
+#define DB_RF_MUST_SUCCEED (1 << 0)
+#define DB_RF_CANFAIL (1 << 1)
+#define DB_RF_HAVESTRUCT (1 << 2)
+#define DB_RF_NOPREFETCH (1 << 3)
+#define DB_RF_NEVERWAIT (1 << 4)
+#define DB_RF_CACHED (1 << 5)
+
+/*
+ * The state transition diagram for dbufs looks like:
+ *
+ * +----> READ ----+
+ * | |
+ * | V
+ * (alloc)-->UNCACHED CACHED-->EVICTING-->(free)
+ * | ^
+ * | |
+ * +----> FILL ----+
+ */
+typedef enum dbuf_states {
+ DB_UNCACHED,
+ DB_FILL,
+ DB_READ,
+ DB_CACHED,
+ DB_EVICTING
+} dbuf_states_t;
+
+struct objset_impl;
+struct dnode;
+struct dmu_tx;
+
+/*
+ * level = 0 means the user data
+ * level = 1 means the single indirect block
+ * etc.
+ */
+
+#define LIST_LINK_INACTIVE(link) \
+ ((link)->list_next == NULL && (link)->list_prev == NULL)
+
+struct dmu_buf_impl;
+
+typedef enum override_states {
+ DR_NOT_OVERRIDDEN,
+ DR_IN_DMU_SYNC,
+ DR_OVERRIDDEN
+} override_states_t;
+
+typedef struct dbuf_dirty_record {
+ /* link on our parents dirty list */
+ list_node_t dr_dirty_node;
+
+ /* transaction group this data will sync in */
+ uint64_t dr_txg;
+
+ /* zio of outstanding write IO */
+ zio_t *dr_zio;
+
+ /* pointer back to our dbuf */
+ struct dmu_buf_impl *dr_dbuf;
+
+ /* pointer to next dirty record */
+ struct dbuf_dirty_record *dr_next;
+
+ /* pointer to parent dirty record */
+ struct dbuf_dirty_record *dr_parent;
+
+ union dirty_types {
+ struct dirty_indirect {
+
+ /* protect access to list */
+ kmutex_t dr_mtx;
+
+ /* Our list of dirty children */
+ list_t dr_children;
+ } di;
+ struct dirty_leaf {
+
+ /*
+ * dr_data is set when we dirty the buffer
+ * so that we can retain the pointer even if it
+ * gets COW'd in a subsequent transaction group.
+ */
+ arc_buf_t *dr_data;
+ blkptr_t dr_overridden_by;
+ override_states_t dr_override_state;
+ } dl;
+ } dt;
+} dbuf_dirty_record_t;
+
+typedef struct dmu_buf_impl {
+ /*
+ * The following members are immutable, with the exception of
+ * db.db_data, which is protected by db_mtx.
+ */
+
+ /* the publicly visible structure */
+ dmu_buf_t db;
+
+ /* the objset we belong to */
+ struct objset_impl *db_objset;
+
+ /*
+ * the dnode we belong to (NULL when evicted)
+ */
+ struct dnode *db_dnode;
+
+ /*
+ * our parent buffer; if the dnode points to us directly,
+ * db_parent == db_dnode->dn_dbuf
+ * only accessed by sync thread ???
+ * (NULL when evicted)
+ */
+ struct dmu_buf_impl *db_parent;
+
+ /*
+ * link for hash table of all dmu_buf_impl_t's
+ */
+ struct dmu_buf_impl *db_hash_next;
+
+ /* our block number */
+ uint64_t db_blkid;
+
+ /*
+ * Pointer to the blkptr_t which points to us. May be NULL if we
+ * don't have one yet. (NULL when evicted)
+ */
+ blkptr_t *db_blkptr;
+
+ /*
+ * Our indirection level. Data buffers have db_level==0.
+ * Indirect buffers which point to data buffers have
+ * db_level==1. etc. Buffers which contain dnodes have
+ * db_level==0, since the dnodes are stored in a file.
+ */
+ uint8_t db_level;
+
+ /* db_mtx protects the members below */
+ kmutex_t db_mtx;
+
+ /*
+ * Current state of the buffer
+ */
+ dbuf_states_t db_state;
+
+ /*
+ * Refcount accessed by dmu_buf_{hold,rele}.
+ * If nonzero, the buffer can't be destroyed.
+ * Protected by db_mtx.
+ */
+ refcount_t db_holds;
+
+ /* buffer holding our data */
+ arc_buf_t *db_buf;
+
+ kcondvar_t db_changed;
+ dbuf_dirty_record_t *db_data_pending;
+
+ /* pointer to most recent dirty record for this buffer */
+ dbuf_dirty_record_t *db_last_dirty;
+
+ /*
+ * Our link on the owner dnodes's dn_dbufs list.
+ * Protected by its dn_dbufs_mtx.
+ */
+ list_node_t db_link;
+
+ /* Data which is unique to data (leaf) blocks: */
+
+ /* stuff we store for the user (see dmu_buf_set_user) */
+ void *db_user_ptr;
+ void **db_user_data_ptr_ptr;
+ dmu_buf_evict_func_t *db_evict_func;
+
+ uint8_t db_immediate_evict;
+ uint8_t db_freed_in_flight;
+
+ uint8_t db_dirtycnt;
+} dmu_buf_impl_t;
+
+/* Note: the dbuf hash table is exposed only for the mdb module */
+#define DBUF_MUTEXES 256
+#define DBUF_HASH_MUTEX(h, idx) (&(h)->hash_mutexes[(idx) & (DBUF_MUTEXES-1)])
+typedef struct dbuf_hash_table {
+ uint64_t hash_table_mask;
+ dmu_buf_impl_t **hash_table;
+ kmutex_t hash_mutexes[DBUF_MUTEXES];
+} dbuf_hash_table_t;
+
+
+uint64_t dbuf_whichblock(struct dnode *di, uint64_t offset);
+
+dmu_buf_impl_t *dbuf_create_tlib(struct dnode *dn, char *data);
+dmu_buf_impl_t *dbuf_create_bonus(struct dnode *dn);
+
+dmu_buf_impl_t *dbuf_hold(struct dnode *dn, uint64_t blkid, void *tag);
+dmu_buf_impl_t *dbuf_hold_level(struct dnode *dn, int level, uint64_t blkid,
+ void *tag);
+int dbuf_hold_impl(struct dnode *dn, uint8_t level, uint64_t blkid, int create,
+ void *tag, dmu_buf_impl_t **dbp);
+
+void dbuf_prefetch(struct dnode *dn, uint64_t blkid);
+
+void dbuf_add_ref(dmu_buf_impl_t *db, void *tag);
+uint64_t dbuf_refcount(dmu_buf_impl_t *db);
+
+void dbuf_rele(dmu_buf_impl_t *db, void *tag);
+
+dmu_buf_impl_t *dbuf_find(struct dnode *dn, uint8_t level, uint64_t blkid);
+
+int dbuf_read(dmu_buf_impl_t *db, zio_t *zio, uint32_t flags);
+void dbuf_will_dirty(dmu_buf_impl_t *db, dmu_tx_t *tx);
+void dmu_buf_will_fill(dmu_buf_t *db, dmu_tx_t *tx);
+void dbuf_fill_done(dmu_buf_impl_t *db, dmu_tx_t *tx);
+void dmu_buf_will_fill(dmu_buf_t *db, dmu_tx_t *tx);
+void dmu_buf_fill_done(dmu_buf_t *db, dmu_tx_t *tx);
+dbuf_dirty_record_t *dbuf_dirty(dmu_buf_impl_t *db, dmu_tx_t *tx);
+
+void dbuf_clear(dmu_buf_impl_t *db);
+void dbuf_evict(dmu_buf_impl_t *db);
+
+void dbuf_setdirty(dmu_buf_impl_t *db, dmu_tx_t *tx);
+void dbuf_unoverride(dbuf_dirty_record_t *dr);
+void dbuf_sync_list(list_t *list, dmu_tx_t *tx);
+
+void dbuf_free_range(struct dnode *dn, uint64_t blkid, uint64_t nblks,
+ struct dmu_tx *);
+
+void dbuf_new_size(dmu_buf_impl_t *db, int size, dmu_tx_t *tx);
+
+void dbuf_init(void);
+void dbuf_fini(void);
+
+#define DBUF_GET_BUFC_TYPE(db) \
+ ((((db)->db_level > 0) || \
+ (dmu_ot[(db)->db_dnode->dn_type].ot_metadata)) ? \
+ ARC_BUFC_METADATA : ARC_BUFC_DATA);
+
+#ifdef ZFS_DEBUG
+
+/*
+ * There should be a ## between the string literal and fmt, to make it
+ * clear that we're joining two strings together, but gcc does not
+ * support that preprocessor token.
+ */
+#define dprintf_dbuf(dbuf, fmt, ...) do { \
+ if (zfs_flags & ZFS_DEBUG_DPRINTF) { \
+ char __db_buf[32]; \
+ uint64_t __db_obj = (dbuf)->db.db_object; \
+ if (__db_obj == DMU_META_DNODE_OBJECT) \
+ (void) strcpy(__db_buf, "mdn"); \
+ else \
+ (void) snprintf(__db_buf, sizeof (__db_buf), "%lld", \
+ (u_longlong_t)__db_obj); \
+ dprintf_ds((dbuf)->db_objset->os_dsl_dataset, \
+ "obj=%s lvl=%u blkid=%lld " fmt, \
+ __db_buf, (dbuf)->db_level, \
+ (u_longlong_t)(dbuf)->db_blkid, __VA_ARGS__); \
+ } \
+_NOTE(CONSTCOND) } while (0)
+
+#define dprintf_dbuf_bp(db, bp, fmt, ...) do { \
+ if (zfs_flags & ZFS_DEBUG_DPRINTF) { \
+ char *__blkbuf = kmem_alloc(BP_SPRINTF_LEN, KM_SLEEP); \
+ sprintf_blkptr(__blkbuf, BP_SPRINTF_LEN, bp); \
+ dprintf_dbuf(db, fmt " %s\n", __VA_ARGS__, __blkbuf); \
+ kmem_free(__blkbuf, BP_SPRINTF_LEN); \
+ } \
+_NOTE(CONSTCOND) } while (0)
+
+#define DBUF_VERIFY(db) dbuf_verify(db)
+
+#else
+
+#define dprintf_dbuf(db, fmt, ...)
+#define dprintf_dbuf_bp(db, bp, fmt, ...)
+#define DBUF_VERIFY(db)
+
+#endif
+
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* _SYS_DBUF_H */
--- /dev/null
+++ sys/cddl/contrib/opensolaris/uts/common/fs/zfs/sys/spa.h
@@ -0,0 +1,491 @@
+/*
+ * CDDL HEADER START
+ *
+ * The contents of this file are subject to the terms of the
+ * Common Development and Distribution License (the "License").
+ * You may not use this file except in compliance with the License.
+ *
+ * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
+ * or http://www.opensolaris.org/os/licensing.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ *
+ * When distributing Covered Code, include this CDDL HEADER in each
+ * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
+ * If applicable, add the following below this CDDL HEADER, with the
+ * fields enclosed by brackets "[]" replaced with your own identifying
+ * information: Portions Copyright [yyyy] [name of copyright owner]
+ *
+ * CDDL HEADER END
+ */
+/*
+ * Copyright 2007 Sun Microsystems, Inc. All rights reserved.
+ * Use is subject to license terms.
+ */
+
+#ifndef _SYS_SPA_H
+#define _SYS_SPA_H
+
+#pragma ident "%Z%%M% %I% %E% SMI"
+
+#include <sys/avl.h>
+#include <sys/zfs_context.h>
+#include <sys/nvpair.h>
+#include <sys/sysmacros.h>
+#include <sys/types.h>
+#include <sys/fs/zfs.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/*
+ * Forward references that lots of things need.
+ */
+typedef struct spa spa_t;
+typedef struct vdev vdev_t;
+typedef struct metaslab metaslab_t;
+typedef struct zilog zilog_t;
+typedef struct traverse_handle traverse_handle_t;
+struct dsl_pool;
+
+/*
+ * General-purpose 32-bit and 64-bit bitfield encodings.
+ */
+#define BF32_DECODE(x, low, len) P2PHASE((x) >> (low), 1U << (len))
+#define BF64_DECODE(x, low, len) P2PHASE((x) >> (low), 1ULL << (len))
+#define BF32_ENCODE(x, low, len) (P2PHASE((x), 1U << (len)) << (low))
+#define BF64_ENCODE(x, low, len) (P2PHASE((x), 1ULL << (len)) << (low))
+
+#define BF32_GET(x, low, len) BF32_DECODE(x, low, len)
+#define BF64_GET(x, low, len) BF64_DECODE(x, low, len)
+
+#define BF32_SET(x, low, len, val) \
+ ((x) ^= BF32_ENCODE((x >> low) ^ (val), low, len))
+#define BF64_SET(x, low, len, val) \
+ ((x) ^= BF64_ENCODE((x >> low) ^ (val), low, len))
+
+#define BF32_GET_SB(x, low, len, shift, bias) \
+ ((BF32_GET(x, low, len) + (bias)) << (shift))
+#define BF64_GET_SB(x, low, len, shift, bias) \
+ ((BF64_GET(x, low, len) + (bias)) << (shift))
+
+#define BF32_SET_SB(x, low, len, shift, bias, val) \
+ BF32_SET(x, low, len, ((val) >> (shift)) - (bias))
+#define BF64_SET_SB(x, low, len, shift, bias, val) \
+ BF64_SET(x, low, len, ((val) >> (shift)) - (bias))
+
+/*
+ * We currently support nine block sizes, from 512 bytes to 128K.
+ * We could go higher, but the benefits are near-zero and the cost
+ * of COWing a giant block to modify one byte would become excessive.
+ */
+#define SPA_MINBLOCKSHIFT 9
+#define SPA_MAXBLOCKSHIFT 17
+#define SPA_MINBLOCKSIZE (1ULL << SPA_MINBLOCKSHIFT)
+#define SPA_MAXBLOCKSIZE (1ULL << SPA_MAXBLOCKSHIFT)
+
+#define SPA_BLOCKSIZES (SPA_MAXBLOCKSHIFT - SPA_MINBLOCKSHIFT + 1)
+
+/*
+ * The DVA size encodings for LSIZE and PSIZE support blocks up to 32MB.
+ * The ASIZE encoding should be at least 64 times larger (6 more bits)
+ * to support up to 4-way RAID-Z mirror mode with worst-case gang block
+ * overhead, three DVAs per bp, plus one more bit in case we do anything
+ * else that expands the ASIZE.
+ */
+#define SPA_LSIZEBITS 16 /* LSIZE up to 32M (2^16 * 512) */
+#define SPA_PSIZEBITS 16 /* PSIZE up to 32M (2^16 * 512) */
+#define SPA_ASIZEBITS 24 /* ASIZE up to 64 times larger */
+
+/*
+ * All SPA data is represented by 128-bit data virtual addresses (DVAs).
+ * The members of the dva_t should be considered opaque outside the SPA.
+ */
+typedef struct dva {
+ uint64_t dva_word[2];
+} dva_t;
+
+/*
+ * Each block has a 256-bit checksum -- strong enough for cryptographic hashes.
+ */
+typedef struct zio_cksum {
+ uint64_t zc_word[4];
+} zio_cksum_t;
+
+/*
+ * Each block is described by its DVAs, time of birth, checksum, etc.
+ * The word-by-word, bit-by-bit layout of the blkptr is as follows:
+ *
+ * 64 56 48 40 32 24 16 8 0
+ * +-------+-------+-------+-------+-------+-------+-------+-------+
+ * 0 | vdev1 | GRID | ASIZE |
+ * +-------+-------+-------+-------+-------+-------+-------+-------+
+ * 1 |G| offset1 |
+ * +-------+-------+-------+-------+-------+-------+-------+-------+
+ * 2 | vdev2 | GRID | ASIZE |
+ * +-------+-------+-------+-------+-------+-------+-------+-------+
+ * 3 |G| offset2 |
+ * +-------+-------+-------+-------+-------+-------+-------+-------+
+ * 4 | vdev3 | GRID | ASIZE |
+ * +-------+-------+-------+-------+-------+-------+-------+-------+
+ * 5 |G| offset3 |
+ * +-------+-------+-------+-------+-------+-------+-------+-------+
+ * 6 |E| lvl | type | cksum | comp | PSIZE | LSIZE |
+ * +-------+-------+-------+-------+-------+-------+-------+-------+
+ * 7 | padding |
+ * +-------+-------+-------+-------+-------+-------+-------+-------+
+ * 8 | padding |
+ * +-------+-------+-------+-------+-------+-------+-------+-------+
+ * 9 | padding |
+ * +-------+-------+-------+-------+-------+-------+-------+-------+
+ * a | birth txg |
+ * +-------+-------+-------+-------+-------+-------+-------+-------+
+ * b | fill count |
+ * +-------+-------+-------+-------+-------+-------+-------+-------+
+ * c | checksum[0] |
+ * +-------+-------+-------+-------+-------+-------+-------+-------+
+ * d | checksum[1] |
+ * +-------+-------+-------+-------+-------+-------+-------+-------+
+ * e | checksum[2] |
+ * +-------+-------+-------+-------+-------+-------+-------+-------+
+ * f | checksum[3] |
+ * +-------+-------+-------+-------+-------+-------+-------+-------+
+ *
+ * Legend:
+ *
+ * vdev virtual device ID
+ * offset offset into virtual device
+ * LSIZE logical size
+ * PSIZE physical size (after compression)
+ * ASIZE allocated size (including RAID-Z parity and gang block headers)
+ * GRID RAID-Z layout information (reserved for future use)
+ * cksum checksum function
+ * comp compression function
+ * G gang block indicator
+ * E endianness
+ * type DMU object type
+ * lvl level of indirection
+ * birth txg transaction group in which the block was born
+ * fill count number of non-zero blocks under this bp
+ * checksum[4] 256-bit checksum of the data this bp describes
+ */
+typedef struct blkptr {
+ dva_t blk_dva[3]; /* 128-bit Data Virtual Address */
+ uint64_t blk_prop; /* size, compression, type, etc */
+ uint64_t blk_pad[3]; /* Extra space for the future */
+ uint64_t blk_birth; /* transaction group at birth */
+ uint64_t blk_fill; /* fill count */
+ zio_cksum_t blk_cksum; /* 256-bit checksum */
+} blkptr_t;
+
+#define SPA_BLKPTRSHIFT 7 /* blkptr_t is 128 bytes */
+#define SPA_DVAS_PER_BP 3 /* Number of DVAs in a bp */
+
+/*
+ * Macros to get and set fields in a bp or DVA.
+ */
+#define DVA_GET_ASIZE(dva) \
+ BF64_GET_SB((dva)->dva_word[0], 0, 24, SPA_MINBLOCKSHIFT, 0)
+#define DVA_SET_ASIZE(dva, x) \
+ BF64_SET_SB((dva)->dva_word[0], 0, 24, SPA_MINBLOCKSHIFT, 0, x)
+
+#define DVA_GET_GRID(dva) BF64_GET((dva)->dva_word[0], 24, 8)
+#define DVA_SET_GRID(dva, x) BF64_SET((dva)->dva_word[0], 24, 8, x)
+
+#define DVA_GET_VDEV(dva) BF64_GET((dva)->dva_word[0], 32, 32)
+#define DVA_SET_VDEV(dva, x) BF64_SET((dva)->dva_word[0], 32, 32, x)
+
+#define DVA_GET_OFFSET(dva) \
+ BF64_GET_SB((dva)->dva_word[1], 0, 63, SPA_MINBLOCKSHIFT, 0)
+#define DVA_SET_OFFSET(dva, x) \
+ BF64_SET_SB((dva)->dva_word[1], 0, 63, SPA_MINBLOCKSHIFT, 0, x)
+
+#define DVA_GET_GANG(dva) BF64_GET((dva)->dva_word[1], 63, 1)
+#define DVA_SET_GANG(dva, x) BF64_SET((dva)->dva_word[1], 63, 1, x)
+
+#define BP_GET_LSIZE(bp) \
+ (BP_IS_HOLE(bp) ? 0 : \
+ BF64_GET_SB((bp)->blk_prop, 0, 16, SPA_MINBLOCKSHIFT, 1))
+#define BP_SET_LSIZE(bp, x) \
+ BF64_SET_SB((bp)->blk_prop, 0, 16, SPA_MINBLOCKSHIFT, 1, x)
+
+#define BP_GET_PSIZE(bp) \
+ BF64_GET_SB((bp)->blk_prop, 16, 16, SPA_MINBLOCKSHIFT, 1)
+#define BP_SET_PSIZE(bp, x) \
+ BF64_SET_SB((bp)->blk_prop, 16, 16, SPA_MINBLOCKSHIFT, 1, x)
+
+#define BP_GET_COMPRESS(bp) BF64_GET((bp)->blk_prop, 32, 8)
+#define BP_SET_COMPRESS(bp, x) BF64_SET((bp)->blk_prop, 32, 8, x)
+
+#define BP_GET_CHECKSUM(bp) BF64_GET((bp)->blk_prop, 40, 8)
+#define BP_SET_CHECKSUM(bp, x) BF64_SET((bp)->blk_prop, 40, 8, x)
+
+#define BP_GET_TYPE(bp) BF64_GET((bp)->blk_prop, 48, 8)
+#define BP_SET_TYPE(bp, x) BF64_SET((bp)->blk_prop, 48, 8, x)
+
+#define BP_GET_LEVEL(bp) BF64_GET((bp)->blk_prop, 56, 5)
+#define BP_SET_LEVEL(bp, x) BF64_SET((bp)->blk_prop, 56, 5, x)
+
+#define BP_GET_BYTEORDER(bp) (0 - BF64_GET((bp)->blk_prop, 63, 1))
+#define BP_SET_BYTEORDER(bp, x) BF64_SET((bp)->blk_prop, 63, 1, x)
+
+#define BP_GET_ASIZE(bp) \
+ (DVA_GET_ASIZE(&(bp)->blk_dva[0]) + DVA_GET_ASIZE(&(bp)->blk_dva[1]) + \
+ DVA_GET_ASIZE(&(bp)->blk_dva[2]))
+
+#define BP_GET_UCSIZE(bp) \
+ ((BP_GET_LEVEL(bp) > 0 || dmu_ot[BP_GET_TYPE(bp)].ot_metadata) ? \
+ BP_GET_PSIZE(bp) : BP_GET_LSIZE(bp));
+
+#define BP_GET_NDVAS(bp) \
+ (!!DVA_GET_ASIZE(&(bp)->blk_dva[0]) + \
+ !!DVA_GET_ASIZE(&(bp)->blk_dva[1]) + \
+ !!DVA_GET_ASIZE(&(bp)->blk_dva[2]))
+
+#define BP_COUNT_GANG(bp) \
+ (DVA_GET_GANG(&(bp)->blk_dva[0]) + \
+ DVA_GET_GANG(&(bp)->blk_dva[1]) + \
+ DVA_GET_GANG(&(bp)->blk_dva[2]))
+
+#define DVA_EQUAL(dva1, dva2) \
+ ((dva1)->dva_word[1] == (dva2)->dva_word[1] && \
+ (dva1)->dva_word[0] == (dva2)->dva_word[0])
+
+#define ZIO_CHECKSUM_EQUAL(zc1, zc2) \
+ (0 == (((zc1).zc_word[0] - (zc2).zc_word[0]) | \
+ ((zc1).zc_word[1] - (zc2).zc_word[1]) | \
+ ((zc1).zc_word[2] - (zc2).zc_word[2]) | \
+ ((zc1).zc_word[3] - (zc2).zc_word[3])))
+
+
+#define DVA_IS_VALID(dva) (DVA_GET_ASIZE(dva) != 0)
+
+#define ZIO_SET_CHECKSUM(zcp, w0, w1, w2, w3) \
+{ \
+ (zcp)->zc_word[0] = w0; \
+ (zcp)->zc_word[1] = w1; \
+ (zcp)->zc_word[2] = w2; \
+ (zcp)->zc_word[3] = w3; \
+}
+
+#define BP_IDENTITY(bp) (&(bp)->blk_dva[0])
+#define BP_IS_GANG(bp) DVA_GET_GANG(BP_IDENTITY(bp))
+#define BP_IS_HOLE(bp) ((bp)->blk_birth == 0)
+#define BP_IS_OLDER(bp, txg) (!BP_IS_HOLE(bp) && (bp)->blk_birth < (txg))
+
+#define BP_ZERO(bp) \
+{ \
+ (bp)->blk_dva[0].dva_word[0] = 0; \
+ (bp)->blk_dva[0].dva_word[1] = 0; \
+ (bp)->blk_dva[1].dva_word[0] = 0; \
+ (bp)->blk_dva[1].dva_word[1] = 0; \
+ (bp)->blk_dva[2].dva_word[0] = 0; \
+ (bp)->blk_dva[2].dva_word[1] = 0; \
+ (bp)->blk_prop = 0; \
+ (bp)->blk_pad[0] = 0; \
+ (bp)->blk_pad[1] = 0; \
+ (bp)->blk_pad[2] = 0; \
+ (bp)->blk_birth = 0; \
+ (bp)->blk_fill = 0; \
+ ZIO_SET_CHECKSUM(&(bp)->blk_cksum, 0, 0, 0, 0); \
+}
+
+/*
+ * Note: the byteorder is either 0 or -1, both of which are palindromes.
+ * This simplifies the endianness handling a bit.
+ */
+#ifdef _BIG_ENDIAN
+#define ZFS_HOST_BYTEORDER (0ULL)
+#else
+#define ZFS_HOST_BYTEORDER (-1ULL)
+#endif
+
+#define BP_SHOULD_BYTESWAP(bp) (BP_GET_BYTEORDER(bp) != ZFS_HOST_BYTEORDER)
+
+#define BP_SPRINTF_LEN 320
+
+#include <sys/dmu.h>
+
+#define BP_GET_BUFC_TYPE(bp) \
+ (((BP_GET_LEVEL(bp) > 0) || (dmu_ot[BP_GET_TYPE(bp)].ot_metadata)) ? \
+ ARC_BUFC_METADATA : ARC_BUFC_DATA);
+/*
+ * Routines found in spa.c
+ */
+
+/* state manipulation functions */
+extern int spa_open(const char *pool, spa_t **, void *tag);
+extern int spa_get_stats(const char *pool, nvlist_t **config,
+ char *altroot, size_t buflen);
+extern int spa_create(const char *pool, nvlist_t *config, const char *altroot);
+extern int spa_import(const char *pool, nvlist_t *config, const char *altroot);
+extern nvlist_t *spa_tryimport(nvlist_t *tryconfig);
+extern int spa_destroy(char *pool);
+extern int spa_export(char *pool, nvlist_t **oldconfig);
+extern int spa_reset(char *pool);
+extern void spa_async_request(spa_t *spa, int flag);
+extern void spa_async_suspend(spa_t *spa);
+extern void spa_async_resume(spa_t *spa);
+extern spa_t *spa_inject_addref(char *pool);
+extern void spa_inject_delref(spa_t *spa);
+
+#define SPA_ASYNC_REOPEN 0x01
+#define SPA_ASYNC_REPLACE_DONE 0x02
+#define SPA_ASYNC_SCRUB 0x04
+#define SPA_ASYNC_RESILVER 0x08
+#define SPA_ASYNC_CONFIG_UPDATE 0x10
+
+/* device manipulation */
+extern int spa_vdev_add(spa_t *spa, nvlist_t *nvroot);
+extern int spa_vdev_attach(spa_t *spa, uint64_t guid, nvlist_t *nvroot,
+ int replacing);
+extern int spa_vdev_detach(spa_t *spa, uint64_t guid, int replace_done);
+extern int spa_vdev_remove(spa_t *spa, uint64_t guid, boolean_t unspare);
+extern int spa_vdev_setpath(spa_t *spa, uint64_t guid, const char *newpath);
+
+/* spare state (which is global across all pools) */
+extern void spa_spare_add(vdev_t *vd);
+extern void spa_spare_remove(vdev_t *vd);
+extern boolean_t spa_spare_exists(uint64_t guid, uint64_t *pool);
+extern void spa_spare_activate(vdev_t *vd);
+
+/* scrubbing */
+extern int spa_scrub(spa_t *spa, pool_scrub_type_t type, boolean_t force);
+extern void spa_scrub_suspend(spa_t *spa);
+extern void spa_scrub_resume(spa_t *spa);
+extern void spa_scrub_restart(spa_t *spa, uint64_t txg);
+
+/* spa syncing */
+extern void spa_sync(spa_t *spa, uint64_t txg); /* only for DMU use */
+extern void spa_sync_allpools(void);
+
+/*
+ * SPA configuration functions in spa_config.c
+ */
+
+#define SPA_CONFIG_UPDATE_POOL 0
+#define SPA_CONFIG_UPDATE_VDEVS 1
+
+extern void spa_config_sync(void);
+extern void spa_config_load(void);
+extern nvlist_t *spa_all_configs(uint64_t *);
+extern void spa_config_set(spa_t *spa, nvlist_t *config);
+extern nvlist_t *spa_config_generate(spa_t *spa, vdev_t *vd, uint64_t txg,
+ int getstats);
+extern void spa_config_update(spa_t *spa, int what);
+
+/*
+ * Miscellaneous SPA routines in spa_misc.c
+ */
+
+/* Namespace manipulation */
+extern spa_t *spa_lookup(const char *name);
+extern spa_t *spa_add(const char *name, const char *altroot);
+extern void spa_remove(spa_t *spa);
+extern spa_t *spa_next(spa_t *prev);
+
+/* Refcount functions */
+extern void spa_open_ref(spa_t *spa, void *tag);
+extern void spa_close(spa_t *spa, void *tag);
+extern boolean_t spa_refcount_zero(spa_t *spa);
+
+/* Pool configuration lock */
+extern void spa_config_enter(spa_t *spa, krw_t rw, void *tag);
+extern void spa_config_exit(spa_t *spa, void *tag);
+extern boolean_t spa_config_held(spa_t *spa, krw_t rw);
+
+/* Pool vdev add/remove lock */
+extern uint64_t spa_vdev_enter(spa_t *spa);
+extern int spa_vdev_exit(spa_t *spa, vdev_t *vd, uint64_t txg, int error);
+
+/* Accessor functions */
+extern krwlock_t *spa_traverse_rwlock(spa_t *spa);
+extern int spa_traverse_wanted(spa_t *spa);
+extern struct dsl_pool *spa_get_dsl(spa_t *spa);
+extern blkptr_t *spa_get_rootblkptr(spa_t *spa);
+extern void spa_set_rootblkptr(spa_t *spa, const blkptr_t *bp);
+extern void spa_altroot(spa_t *, char *, size_t);
+extern int spa_sync_pass(spa_t *spa);
+extern char *spa_name(spa_t *spa);
+extern uint64_t spa_guid(spa_t *spa);
+extern uint64_t spa_last_synced_txg(spa_t *spa);
+extern uint64_t spa_first_txg(spa_t *spa);
+extern uint64_t spa_version(spa_t *spa);
+extern int spa_state(spa_t *spa);
+extern uint64_t spa_freeze_txg(spa_t *spa);
+struct metaslab_class;
+extern struct metaslab_class *spa_metaslab_class_select(spa_t *spa);
+extern uint64_t spa_get_alloc(spa_t *spa);
+extern uint64_t spa_get_space(spa_t *spa);
+extern uint64_t spa_get_dspace(spa_t *spa);
+extern uint64_t spa_get_asize(spa_t *spa, uint64_t lsize);
+extern uint64_t spa_version(spa_t *spa);
+extern int spa_max_replication(spa_t *spa);
+extern int spa_busy(void);
+
+/* Miscellaneous support routines */
+extern int spa_rename(const char *oldname, const char *newname);
+extern boolean_t spa_guid_exists(uint64_t pool_guid, uint64_t device_guid);
+extern char *spa_strdup(const char *);
+extern void spa_strfree(char *);
+extern uint64_t spa_get_random(uint64_t range);
+extern void sprintf_blkptr(char *buf, int len, const blkptr_t *bp);
+extern void spa_freeze(spa_t *spa);
+extern void spa_upgrade(spa_t *spa);
+extern void spa_evict_all(void);
+extern vdev_t *spa_lookup_by_guid(spa_t *spa, uint64_t guid);
+extern boolean_t spa_has_spare(spa_t *, uint64_t guid);
+extern uint64_t bp_get_dasize(spa_t *spa, const blkptr_t *bp);
+
+/* history logging */
+extern void spa_history_create_obj(spa_t *spa, dmu_tx_t *tx);
+extern int spa_history_get(spa_t *spa, uint64_t *offset, uint64_t *len_read,
+ char *his_buf);
+extern int spa_history_log(spa_t *spa, const char *his_buf,
+ uint64_t pool_create);
+
+/* error handling */
+struct zbookmark;
+struct zio;
+extern void spa_log_error(spa_t *spa, struct zio *zio);
+extern void zfs_ereport_post(const char *class, spa_t *spa, vdev_t *vd,
+ struct zio *zio, uint64_t stateoroffset, uint64_t length);
+extern void zfs_post_ok(spa_t *spa, vdev_t *vd);
+extern uint64_t spa_get_errlog_size(spa_t *spa);
+extern int spa_get_errlog(spa_t *spa, void *uaddr, size_t *count);
+extern void spa_errlog_rotate(spa_t *spa);
+extern void spa_errlog_drain(spa_t *spa);
+extern void spa_errlog_sync(spa_t *spa, uint64_t txg);
+extern void spa_get_errlists(spa_t *spa, avl_tree_t *last, avl_tree_t *scrub);
+
+/* Initialization and termination */
+extern void spa_init(int flags);
+extern void spa_fini(void);
+
+/* properties */
+extern int spa_set_props(spa_t *spa, nvlist_t *nvp);
+extern int spa_get_props(spa_t *spa, nvlist_t **nvp);
+extern void spa_clear_bootfs(spa_t *spa, uint64_t obj, dmu_tx_t *tx);
+extern boolean_t spa_has_bootfs(spa_t *spa);
+
+#ifdef ZFS_DEBUG
+#define dprintf_bp(bp, fmt, ...) do { \
+ if (zfs_flags & ZFS_DEBUG_DPRINTF) { \
+ char *__blkbuf = kmem_alloc(BP_SPRINTF_LEN, KM_SLEEP); \
+ sprintf_blkptr(__blkbuf, BP_SPRINTF_LEN, (bp)); \
+ dprintf(fmt " %s\n", __VA_ARGS__, __blkbuf); \
+ kmem_free(__blkbuf, BP_SPRINTF_LEN); \
+ } \
+_NOTE(CONSTCOND) } while (0)
+#else
+#define dprintf_bp(bp, fmt, ...)
+#endif
+
+extern int spa_mode; /* mode, e.g. FREAD | FWRITE */
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* _SYS_SPA_H */
--- /dev/null
+++ sys/cddl/contrib/opensolaris/uts/common/fs/zfs/sys/dsl_prop.h
@@ -0,0 +1,77 @@
+/*
+ * CDDL HEADER START
+ *
+ * The contents of this file are subject to the terms of the
+ * Common Development and Distribution License (the "License").
+ * You may not use this file except in compliance with the License.
+ *
+ * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
+ * or http://www.opensolaris.org/os/licensing.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ *
+ * When distributing Covered Code, include this CDDL HEADER in each
+ * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
+ * If applicable, add the following below this CDDL HEADER, with the
+ * fields enclosed by brackets "[]" replaced with your own identifying
+ * information: Portions Copyright [yyyy] [name of copyright owner]
+ *
+ * CDDL HEADER END
+ */
+/*
+ * Copyright 2006 Sun Microsystems, Inc. All rights reserved.
+ * Use is subject to license terms.
+ */
+
+#ifndef _SYS_DSL_PROP_H
+#define _SYS_DSL_PROP_H
+
+#pragma ident "%Z%%M% %I% %E% SMI"
+
+#include <sys/dmu.h>
+#include <sys/dsl_pool.h>
+#include <sys/zfs_context.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+struct dsl_dataset;
+
+/* The callback func may not call into the DMU or DSL! */
+typedef void (dsl_prop_changed_cb_t)(void *arg, uint64_t newval);
+
+typedef struct dsl_prop_cb_record {
+ list_node_t cbr_node; /* link on dd_prop_cbs */
+ struct dsl_dataset *cbr_ds;
+ const char *cbr_propname;
+ dsl_prop_changed_cb_t *cbr_func;
+ void *cbr_arg;
+} dsl_prop_cb_record_t;
+
+int dsl_prop_register(struct dsl_dataset *ds, const char *propname,
+ dsl_prop_changed_cb_t *callback, void *cbarg);
+int dsl_prop_unregister(struct dsl_dataset *ds, const char *propname,
+ dsl_prop_changed_cb_t *callback, void *cbarg);
+int dsl_prop_numcb(struct dsl_dataset *ds);
+
+int dsl_prop_get(const char *ddname, const char *propname,
+ int intsz, int numints, void *buf, char *setpoint);
+int dsl_prop_get_integer(const char *ddname, const char *propname,
+ uint64_t *valuep, char *setpoint);
+int dsl_prop_get_all(objset_t *os, nvlist_t **nvp);
+
+int dsl_prop_set(const char *ddname, const char *propname,
+ int intsz, int numints, const void *buf);
+int dsl_prop_set_dd(dsl_dir_t *dd, const char *propname,
+ int intsz, int numints, const void *buf);
+
+void dsl_prop_nvlist_add_uint64(nvlist_t *nv, zfs_prop_t prop, uint64_t value);
+void dsl_prop_nvlist_add_string(nvlist_t *nv,
+ zfs_prop_t prop, const char *value);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* _SYS_DSL_PROP_H */
--- /dev/null
+++ sys/cddl/contrib/opensolaris/uts/common/fs/zfs/sys/zfs_ioctl.h
@@ -0,0 +1,163 @@
+/*
+ * CDDL HEADER START
+ *
+ * The contents of this file are subject to the terms of the
+ * Common Development and Distribution License (the "License").
+ * You may not use this file except in compliance with the License.
+ *
+ * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
+ * or http://www.opensolaris.org/os/licensing.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ *
+ * When distributing Covered Code, include this CDDL HEADER in each
+ * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
+ * If applicable, add the following below this CDDL HEADER, with the
+ * fields enclosed by brackets "[]" replaced with your own identifying
+ * information: Portions Copyright [yyyy] [name of copyright owner]
+ *
+ * CDDL HEADER END
+ */
+/*
+ * Copyright 2007 Sun Microsystems, Inc. All rights reserved.
+ * Use is subject to license terms.
+ */
+
+#ifndef _SYS_ZFS_IOCTL_H
+#define _SYS_ZFS_IOCTL_H
+
+#pragma ident "%Z%%M% %I% %E% SMI"
+
+#include <sys/cred.h>
+#include <sys/dmu.h>
+#include <sys/zio.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/*
+ * Property values for snapdir
+ */
+#define ZFS_SNAPDIR_HIDDEN 0
+#define ZFS_SNAPDIR_VISIBLE 1
+
+#define DMU_BACKUP_VERSION (1ULL)
+#define DMU_BACKUP_MAGIC 0x2F5bacbacULL
+
+/*
+ * zfs ioctl command structure
+ */
+typedef struct dmu_replay_record {
+ enum {
+ DRR_BEGIN, DRR_OBJECT, DRR_FREEOBJECTS,
+ DRR_WRITE, DRR_FREE, DRR_END,
+ } drr_type;
+ uint32_t drr_pad;
+ union {
+ struct drr_begin {
+ uint64_t drr_magic;
+ uint64_t drr_version;
+ uint64_t drr_creation_time;
+ dmu_objset_type_t drr_type;
+ uint32_t drr_pad;
+ uint64_t drr_toguid;
+ uint64_t drr_fromguid;
+ char drr_toname[MAXNAMELEN];
+ } drr_begin;
+ struct drr_end {
+ zio_cksum_t drr_checksum;
+ } drr_end;
+ struct drr_object {
+ uint64_t drr_object;
+ dmu_object_type_t drr_type;
+ dmu_object_type_t drr_bonustype;
+ uint32_t drr_blksz;
+ uint32_t drr_bonuslen;
+ uint8_t drr_checksum;
+ uint8_t drr_compress;
+ uint8_t drr_pad[6];
+ /* bonus content follows */
+ } drr_object;
+ struct drr_freeobjects {
+ uint64_t drr_firstobj;
+ uint64_t drr_numobjs;
+ } drr_freeobjects;
+ struct drr_write {
+ uint64_t drr_object;
+ dmu_object_type_t drr_type;
+ uint32_t drr_pad;
+ uint64_t drr_offset;
+ uint64_t drr_length;
+ /* content follows */
+ } drr_write;
+ struct drr_free {
+ uint64_t drr_object;
+ uint64_t drr_offset;
+ uint64_t drr_length;
+ } drr_free;
+ } drr_u;
+} dmu_replay_record_t;
+
+typedef struct zinject_record {
+ uint64_t zi_objset;
+ uint64_t zi_object;
+ uint64_t zi_start;
+ uint64_t zi_end;
+ uint64_t zi_guid;
+ uint32_t zi_level;
+ uint32_t zi_error;
+ uint64_t zi_type;
+ uint32_t zi_freq;
+} zinject_record_t;
+
+#define ZINJECT_NULL 0x1
+#define ZINJECT_FLUSH_ARC 0x2
+#define ZINJECT_UNLOAD_SPA 0x4
+
+typedef struct zfs_cmd {
+ char zc_name[MAXPATHLEN];
+ char zc_value[MAXPATHLEN * 2];
+ uint64_t zc_guid;
+ uint64_t zc_nvlist_src; /* really (char *) */
+ uint64_t zc_nvlist_src_size;
+ uint64_t zc_nvlist_dst; /* really (char *) */
+ uint64_t zc_nvlist_dst_size;
+ uint64_t zc_cookie;
+ uint64_t zc_cred;
+ uint64_t zc_dev;
+ uint64_t zc_objset_type;
+ uint64_t zc_history; /* really (char *) */
+ uint64_t zc_history_len;
+ uint64_t zc_history_offset;
+ uint64_t zc_obj;
+ uint64_t zc_jailid;
+ dmu_objset_stats_t zc_objset_stats;
+ struct drr_begin zc_begin_record;
+ zinject_record_t zc_inject_record;
+} zfs_cmd_t;
+
+#ifdef _KERNEL
+typedef struct zfs_create_data {
+ cred_t *zc_cred;
+ dev_t zc_dev;
+ nvlist_t *zc_props;
+} zfs_create_data_t;
+#endif
+
+#define ZVOL_MAX_MINOR (1 << 16)
+#define ZFS_MIN_MINOR (ZVOL_MAX_MINOR + 1)
+
+#ifdef _KERNEL
+
+extern int zfs_secpolicy_write(const char *dataset, cred_t *cr);
+extern int zfs_busy(void);
+extern int zfs_unmount_snap(char *, void *);
+
+#endif /* _KERNEL */
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* _SYS_ZFS_IOCTL_H */
--- /dev/null
+++ sys/cddl/contrib/opensolaris/uts/common/fs/zfs/sys/dmu_traverse.h
@@ -0,0 +1,120 @@
+/*
+ * CDDL HEADER START
+ *
+ * The contents of this file are subject to the terms of the
+ * Common Development and Distribution License (the "License").
+ * You may not use this file except in compliance with the License.
+ *
+ * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
+ * or http://www.opensolaris.org/os/licensing.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ *
+ * When distributing Covered Code, include this CDDL HEADER in each
+ * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
+ * If applicable, add the following below this CDDL HEADER, with the
+ * fields enclosed by brackets "[]" replaced with your own identifying
+ * information: Portions Copyright [yyyy] [name of copyright owner]
+ *
+ * CDDL HEADER END
+ */
+/*
+ * Copyright 2006 Sun Microsystems, Inc. All rights reserved.
+ * Use is subject to license terms.
+ */
+
+#ifndef _SYS_DMU_TRAVERSE_H
+#define _SYS_DMU_TRAVERSE_H
+
+#pragma ident "%Z%%M% %I% %E% SMI"
+
+#include <sys/zfs_context.h>
+#include <sys/spa.h>
+#include <sys/zio.h>
+#include <sys/dmu.h>
+#include <sys/dnode.h>
+#include <sys/arc.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#define ADVANCE_POST 0 /* post-order traversal */
+#define ADVANCE_PRE 0x01 /* pre-order traversal */
+#define ADVANCE_PRUNE 0x02 /* prune by prev snapshot birth time */
+#define ADVANCE_DATA 0x04 /* read user data blocks */
+#define ADVANCE_HOLES 0x08 /* visit holes */
+#define ADVANCE_ZIL 0x10 /* visit intent log blocks */
+#define ADVANCE_NOLOCK 0x20 /* Don't grab SPA sync lock */
+
+#define ZB_NO_LEVEL -2
+#define ZB_MAXLEVEL 32 /* Next power of 2 >= DN_MAX_LEVELS */
+#define ZB_MAXBLKID (1ULL << 62)
+#define ZB_MAXOBJSET (1ULL << 62)
+#define ZB_MAXOBJECT (1ULL << 62)
+
+#define ZB_MOS_CACHE 0
+#define ZB_MDN_CACHE 1
+#define ZB_DN_CACHE 2
+#define ZB_DEPTH 3
+
+typedef struct zseg {
+ uint64_t seg_mintxg;
+ uint64_t seg_maxtxg;
+ zbookmark_t seg_start;
+ zbookmark_t seg_end;
+ list_node_t seg_node;
+} zseg_t;
+
+typedef struct traverse_blk_cache {
+ zbookmark_t bc_bookmark;
+ blkptr_t bc_blkptr;
+ void *bc_data;
+ dnode_phys_t *bc_dnode;
+ int bc_errno;
+ int bc_pad1;
+ uint64_t bc_pad2;
+} traverse_blk_cache_t;
+
+typedef int (blkptr_cb_t)(traverse_blk_cache_t *bc, spa_t *spa, void *arg);
+
+struct traverse_handle {
+ spa_t *th_spa;
+ blkptr_cb_t *th_func;
+ void *th_arg;
+ uint16_t th_advance;
+ uint16_t th_locked;
+ int th_zio_flags;
+ list_t th_seglist;
+ traverse_blk_cache_t th_cache[ZB_DEPTH][ZB_MAXLEVEL];
+ traverse_blk_cache_t th_zil_cache;
+ uint64_t th_hits;
+ uint64_t th_arc_hits;
+ uint64_t th_reads;
+ uint64_t th_callbacks;
+ uint64_t th_syncs;
+ uint64_t th_restarts;
+ zbookmark_t th_noread;
+ zbookmark_t th_lastcb;
+};
+
+int traverse_dsl_dataset(struct dsl_dataset *ds, uint64_t txg_start,
+ int advance, blkptr_cb_t func, void *arg);
+
+traverse_handle_t *traverse_init(spa_t *spa, blkptr_cb_t *func, void *arg,
+ int advance, int zio_flags);
+void traverse_fini(traverse_handle_t *th);
+
+void traverse_add_dnode(traverse_handle_t *th,
+ uint64_t mintxg, uint64_t maxtxg, uint64_t objset, uint64_t object);
+void traverse_add_objset(traverse_handle_t *th,
+ uint64_t mintxg, uint64_t maxtxg, uint64_t objset);
+void traverse_add_pool(traverse_handle_t *th, uint64_t mintxg, uint64_t maxtxg);
+
+int traverse_more(traverse_handle_t *th);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* _SYS_DMU_TRAVERSE_H */
--- /dev/null
+++ sys/cddl/contrib/opensolaris/uts/common/fs/zfs/sys/dmu_impl.h
@@ -0,0 +1,237 @@
+/*
+ * CDDL HEADER START
+ *
+ * The contents of this file are subject to the terms of the
+ * Common Development and Distribution License (the "License").
+ * You may not use this file except in compliance with the License.
+ *
+ * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
+ * or http://www.opensolaris.org/os/licensing.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ *
+ * When distributing Covered Code, include this CDDL HEADER in each
+ * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
+ * If applicable, add the following below this CDDL HEADER, with the
+ * fields enclosed by brackets "[]" replaced with your own identifying
+ * information: Portions Copyright [yyyy] [name of copyright owner]
+ *
+ * CDDL HEADER END
+ */
+/*
+ * Copyright 2007 Sun Microsystems, Inc. All rights reserved.
+ * Use is subject to license terms.
+ */
+
+#ifndef _SYS_DMU_IMPL_H
+#define _SYS_DMU_IMPL_H
+
+#pragma ident "%Z%%M% %I% %E% SMI"
+
+#include <sys/txg_impl.h>
+#include <sys/zio.h>
+#include <sys/dnode.h>
+#include <sys/zfs_context.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/*
+ * This is the locking strategy for the DMU. Numbers in parenthesis are
+ * cases that use that lock order, referenced below:
+ *
+ * ARC is self-contained
+ * bplist is self-contained
+ * refcount is self-contained
+ * txg is self-contained (hopefully!)
+ * zst_lock
+ * zf_rwlock
+ *
+ * XXX try to improve evicting path?
+ *
+ * dp_config_rwlock > os_obj_lock > dn_struct_rwlock >
+ * dn_dbufs_mtx > hash_mutexes > db_mtx > leafs
+ *
+ * dp_config_rwlock
+ * must be held before: everything
+ * protects dd namespace changes
+ * protects property changes globally
+ * held from:
+ * dsl_dir_open/r:
+ * dsl_dir_create_sync/w:
+ * dsl_dir_sync_destroy/w:
+ * dsl_dir_rename_sync/w:
+ * dsl_prop_changed_notify/r:
+ *
+ * os_obj_lock
+ * must be held before:
+ * everything except dp_config_rwlock
+ * protects os_obj_next
+ * held from:
+ * dmu_object_alloc: dn_dbufs_mtx, db_mtx, hash_mutexes, dn_struct_rwlock
+ *
+ * dn_struct_rwlock
+ * must be held before:
+ * everything except dp_config_rwlock and os_obj_lock
+ * protects structure of dnode (eg. nlevels)
+ * db_blkptr can change when syncing out change to nlevels
+ * dn_maxblkid
+ * dn_nlevels
+ * dn_*blksz*
+ * phys nlevels, maxblkid, physical blkptr_t's (?)
+ * held from:
+ * callers of dbuf_read_impl, dbuf_hold[_impl], dbuf_prefetch
+ * dmu_object_info_from_dnode: dn_dirty_mtx (dn_datablksz)
+ * dmu_tx_count_free:
+ * dbuf_read_impl: db_mtx, dmu_zfetch()
+ * dmu_zfetch: zf_rwlock/r, zst_lock, dbuf_prefetch()
+ * dbuf_new_size: db_mtx
+ * dbuf_dirty: db_mtx
+ * dbuf_findbp: (callers, phys? - the real need)
+ * dbuf_create: dn_dbufs_mtx, hash_mutexes, db_mtx (phys?)
+ * dbuf_prefetch: dn_dirty_mtx, hash_mutexes, db_mtx, dn_dbufs_mtx
+ * dbuf_hold_impl: hash_mutexes, db_mtx, dn_dbufs_mtx, dbuf_findbp()
+ * dnode_sync/w (increase_indirection): db_mtx (phys)
+ * dnode_set_blksz/w: dn_dbufs_mtx (dn_*blksz*)
+ * dnode_new_blkid/w: (dn_maxblkid)
+ * dnode_free_range/w: dn_dirty_mtx (dn_maxblkid)
+ * dnode_next_offset: (phys)
+ *
+ * dn_dbufs_mtx
+ * must be held before:
+ * db_mtx, hash_mutexes
+ * protects:
+ * dn_dbufs
+ * dn_evicted
+ * held from:
+ * dmu_evict_user: db_mtx (dn_dbufs)
+ * dbuf_free_range: db_mtx (dn_dbufs)
+ * dbuf_remove_ref: db_mtx, callees:
+ * dbuf_hash_remove: hash_mutexes, db_mtx
+ * dbuf_create: hash_mutexes, db_mtx (dn_dbufs)
+ * dnode_set_blksz: (dn_dbufs)
+ *
+ * hash_mutexes (global)
+ * must be held before:
+ * db_mtx
+ * protects dbuf_hash_table (global) and db_hash_next
+ * held from:
+ * dbuf_find: db_mtx
+ * dbuf_hash_insert: db_mtx
+ * dbuf_hash_remove: db_mtx
+ *
+ * db_mtx (meta-leaf)
+ * must be held before:
+ * dn_mtx, dn_dirty_mtx, dd_lock (leaf mutexes)
+ * protects:
+ * db_state
+ * db_holds
+ * db_buf
+ * db_changed
+ * db_data_pending
+ * db_dirtied
+ * db_link
+ * db_dirty_node (??)
+ * db_dirtycnt
+ * db_d.*
+ * db.*
+ * held from:
+ * dbuf_dirty: dn_mtx, dn_dirty_mtx
+ * dbuf_dirty->dsl_dir_willuse_space: dd_lock
+ * dbuf_dirty->dbuf_new_block->dsl_dataset_block_freeable: dd_lock
+ * dbuf_undirty: dn_dirty_mtx (db_d)
+ * dbuf_write_done: dn_dirty_mtx (db_state)
+ * dbuf_*
+ * dmu_buf_update_user: none (db_d)
+ * dmu_evict_user: none (db_d) (maybe can eliminate)
+ * dbuf_find: none (db_holds)
+ * dbuf_hash_insert: none (db_holds)
+ * dmu_buf_read_array_impl: none (db_state, db_changed)
+ * dmu_sync: none (db_dirty_node, db_d)
+ * dnode_reallocate: none (db)
+ *
+ * dn_mtx (leaf)
+ * protects:
+ * dn_dirty_dbufs
+ * dn_ranges
+ * phys accounting
+ * dn_allocated_txg
+ * dn_free_txg
+ * dn_assigned_txg
+ * dd_assigned_tx
+ * dn_notxholds
+ * dn_dirtyctx
+ * dn_dirtyctx_firstset
+ * (dn_phys copy fields?)
+ * (dn_phys contents?)
+ * held from:
+ * dnode_*
+ * dbuf_dirty: none
+ * dbuf_sync: none (phys accounting)
+ * dbuf_undirty: none (dn_ranges, dn_dirty_dbufs)
+ * dbuf_write_done: none (phys accounting)
+ * dmu_object_info_from_dnode: none (accounting)
+ * dmu_tx_commit: none
+ * dmu_tx_hold_object_impl: none
+ * dmu_tx_try_assign: dn_notxholds(cv)
+ * dmu_tx_unassign: none
+ *
+ * dd_lock (leaf)
+ * protects:
+ * dd_prop_cbs
+ * dd_sync_*
+ * dd_used_bytes
+ * dd_tempreserved
+ * dd_space_towrite
+ * dd_myname
+ * dd_phys accounting?
+ * held from:
+ * dsl_dir_*
+ * dsl_prop_changed_notify: none (dd_prop_cbs)
+ * dsl_prop_register: none (dd_prop_cbs)
+ * dsl_prop_unregister: none (dd_prop_cbs)
+ * dsl_dataset_block_freeable: none (dd_sync_*)
+ *
+ * os_lock (leaf)
+ * protects:
+ * os_dirty_dnodes
+ * os_free_dnodes
+ * os_dnodes
+ * os_downgraded_dbufs
+ * dn_dirtyblksz
+ * dn_dirty_link
+ * held from:
+ * dnode_create: none (os_dnodes)
+ * dnode_destroy: none (os_dnodes)
+ * dnode_setdirty: none (dn_dirtyblksz, os_*_dnodes)
+ * dnode_free: none (dn_dirtyblksz, os_*_dnodes)
+ *
+ * ds_lock (leaf)
+ * protects:
+ * ds_user_ptr
+ * ds_user_evice_func
+ * ds_open_refcount
+ * ds_snapname
+ * ds_phys accounting
+ * held from:
+ * dsl_dataset_*
+ *
+ * dr_mtx (leaf)
+ * protects:
+ * dr_children
+ * held from:
+ * dbuf_dirty
+ * dbuf_undirty
+ * dbuf_sync_indirect
+ * dnode_new_blkid
+ */
+
+struct objset;
+struct dmu_pool;
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* _SYS_DMU_IMPL_H */
--- /dev/null
+++ sys/cddl/contrib/opensolaris/uts/common/fs/zfs/sys/metaslab_impl.h
@@ -0,0 +1,81 @@
+/*
+ * CDDL HEADER START
+ *
+ * The contents of this file are subject to the terms of the
+ * Common Development and Distribution License (the "License").
+ * You may not use this file except in compliance with the License.
+ *
+ * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
+ * or http://www.opensolaris.org/os/licensing.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ *
+ * When distributing Covered Code, include this CDDL HEADER in each
+ * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
+ * If applicable, add the following below this CDDL HEADER, with the
+ * fields enclosed by brackets "[]" replaced with your own identifying
+ * information: Portions Copyright [yyyy] [name of copyright owner]
+ *
+ * CDDL HEADER END
+ */
+/*
+ * Copyright 2006 Sun Microsystems, Inc. All rights reserved.
+ * Use is subject to license terms.
+ */
+
+#ifndef _SYS_METASLAB_IMPL_H
+#define _SYS_METASLAB_IMPL_H
+
+#pragma ident "%Z%%M% %I% %E% SMI"
+
+#include <sys/metaslab.h>
+#include <sys/space_map.h>
+#include <sys/vdev.h>
+#include <sys/txg.h>
+#include <sys/avl.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+struct metaslab_class {
+ metaslab_group_t *mc_rotor;
+ uint64_t mc_allocated;
+};
+
+struct metaslab_group {
+ kmutex_t mg_lock;
+ avl_tree_t mg_metaslab_tree;
+ uint64_t mg_aliquot;
+ int64_t mg_bias;
+ metaslab_class_t *mg_class;
+ vdev_t *mg_vd;
+ metaslab_group_t *mg_prev;
+ metaslab_group_t *mg_next;
+};
+
+/*
+ * Each metaslab's free space is tracked in space map object in the MOS,
+ * which is only updated in syncing context. Each time we sync a txg,
+ * we append the allocs and frees from that txg to the space map object.
+ * When the txg is done syncing, metaslab_sync_done() updates ms_smo
+ * to ms_smo_syncing. Everything in ms_smo is always safe to allocate.
+ */
+struct metaslab {
+ kmutex_t ms_lock; /* metaslab lock */
+ space_map_obj_t ms_smo; /* synced space map object */
+ space_map_obj_t ms_smo_syncing; /* syncing space map object */
+ space_map_t ms_allocmap[TXG_SIZE]; /* allocated this txg */
+ space_map_t ms_freemap[TXG_SIZE]; /* freed this txg */
+ space_map_t ms_map; /* in-core free space map */
+ uint64_t ms_weight; /* weight vs. others in group */
+ metaslab_group_t *ms_group; /* metaslab group */
+ avl_node_t ms_group_node; /* node in metaslab group tree */
+ txg_node_t ms_txg_node; /* per-txg dirty metaslab links */
+};
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* _SYS_METASLAB_IMPL_H */
--- /dev/null
+++ sys/cddl/contrib/opensolaris/uts/common/fs/zfs/sys/zfs_context.h
@@ -0,0 +1,120 @@
+/*
+ * CDDL HEADER START
+ *
+ * The contents of this file are subject to the terms of the
+ * Common Development and Distribution License, Version 1.0 only
+ * (the "License"). You may not use this file except in compliance
+ * with the License.
+ *
+ * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
+ * or http://www.opensolaris.org/os/licensing.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ *
+ * When distributing Covered Code, include this CDDL HEADER in each
+ * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
+ * If applicable, add the following below this CDDL HEADER, with the
+ * fields enclosed by brackets "[]" replaced with your own identifying
+ * information: Portions Copyright [yyyy] [name of copyright owner]
+ *
+ * CDDL HEADER END
+ */
+/*
+ * Copyright 2005 Sun Microsystems, Inc. All rights reserved.
+ * Use is subject to license terms.
+ */
+
+#ifndef _SYS_ZFS_CONTEXT_H
+#define _SYS_ZFS_CONTEXT_H
+
+#pragma ident "%Z%%M% %I% %E% SMI"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#include <sys/param.h>
+#include <sys/stdint.h>
+#include <sys/note.h>
+#include <sys/kernel.h>
+#include <sys/debug.h>
+#include <sys/systm.h>
+#include <sys/proc.h>
+#include <sys/sysmacros.h>
+#include <sys/bitmap.h>
+#include <sys/cmn_err.h>
+#include <sys/kmem.h>
+#include <sys/taskq.h>
+#include <sys/systm.h>
+#include <sys/conf.h>
+#include <sys/mutex.h>
+#include <sys/rwlock.h>
+#include <sys/random.h>
+#include <sys/byteorder.h>
+#include <sys/systm.h>
+#include <sys/list.h>
+#include <sys/uio.h>
+#include <sys/dirent.h>
+#include <sys/time.h>
+#include <sys/uio.h>
+#include <sys/fcntl.h>
+#include <sys/limits.h>
+#include <sys/string.h>
+#include <sys/bio.h>
+#include <sys/buf.h>
+#include <sys/cred.h>
+#include <sys/sdt.h>
+#include <sys/file.h>
+#include <sys/vfs.h>
+#include <sys/sysctl.h>
+#include <sys/sbuf.h>
+#include <sys/priv.h>
+#include <sys/kdb.h>
+#include <sys/ktr.h>
+#include <sys/stack.h>
+#include <sys/lockf.h>
+#include <sys/policy.h>
+#include <sys/zone.h>
+#include <sys/eventhandler.h>
+#include <sys/misc.h>
+#include <sys/zfs_debug.h>
+
+#include <machine/stdarg.h>
+
+#include <vm/vm.h>
+#include <vm/vm_page.h>
+#include <vm/vm_object.h>
+#include <vm/vm_pager.h>
+#include <vm/vm_kern.h>
+#include <vm/vm_map.h>
+/* There is clash. vm_map.h defines the two below and vdev_cache.c use them. */
+#ifdef min_offset
+#undef min_offset
+#endif
+#ifdef max_offset
+#undef max_offset
+#endif
+#include <vm/vm_extern.h>
+#include <vm/vnode_pager.h>
+
+#define CPU_SEQID (curcpu)
+
+#ifdef __cplusplus
+}
+#endif
+
+extern int zfs_debug_level;
+extern struct mtx zfs_debug_mtx;
+#define ZFS_LOG(lvl, ...) do { \
+ if (((lvl) & 0xff) <= zfs_debug_level) { \
+ mtx_lock(&zfs_debug_mtx); \
+ printf("%s:%u[%d]: ", __func__, __LINE__, (lvl)); \
+ printf(__VA_ARGS__); \
+ printf("\n"); \
+ if ((lvl) & 0x100) \
+ kdb_backtrace(); \
+ mtx_unlock(&zfs_debug_mtx); \
+ } \
+} while (0)
+
+#endif /* _SYS_ZFS_CONTEXT_H */
--- /dev/null
+++ sys/cddl/contrib/opensolaris/uts/common/fs/zfs/sys/arc.h
@@ -0,0 +1,109 @@
+/*
+ * CDDL HEADER START
+ *
+ * The contents of this file are subject to the terms of the
+ * Common Development and Distribution License (the "License").
+ * You may not use this file except in compliance with the License.
+ *
+ * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
+ * or http://www.opensolaris.org/os/licensing.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ *
+ * When distributing Covered Code, include this CDDL HEADER in each
+ * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
+ * If applicable, add the following below this CDDL HEADER, with the
+ * fields enclosed by brackets "[]" replaced with your own identifying
+ * information: Portions Copyright [yyyy] [name of copyright owner]
+ *
+ * CDDL HEADER END
+ */
+/*
+ * Copyright 2007 Sun Microsystems, Inc. All rights reserved.
+ * Use is subject to license terms.
+ */
+
+#ifndef _SYS_ARC_H
+#define _SYS_ARC_H
+
+#pragma ident "%Z%%M% %I% %E% SMI"
+
+#include <sys/zfs_context.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#include <sys/zio.h>
+
+typedef struct arc_buf_hdr arc_buf_hdr_t;
+typedef struct arc_buf arc_buf_t;
+typedef void arc_done_func_t(zio_t *zio, arc_buf_t *buf, void *private);
+typedef void arc_byteswap_func_t(void *buf, size_t size);
+typedef int arc_evict_func_t(void *private);
+
+/* generic arc_done_func_t's which you can use */
+arc_done_func_t arc_bcopy_func;
+arc_done_func_t arc_getbuf_func;
+
+struct arc_buf {
+ arc_buf_hdr_t *b_hdr;
+ arc_buf_t *b_next;
+ void *b_data;
+ arc_evict_func_t *b_efunc;
+ void *b_private;
+};
+
+typedef enum arc_buf_contents {
+ ARC_BUFC_UNDEF, /* buffer contents undefined */
+ ARC_BUFC_DATA, /* buffer contains data */
+ ARC_BUFC_METADATA /* buffer contains metadata */
+} arc_buf_contents_t;
+/*
+ * These are the flags we pass into calls to the arc
+ */
+#define ARC_WAIT (1 << 1) /* perform I/O synchronously */
+#define ARC_NOWAIT (1 << 2) /* perform I/O asynchronously */
+#define ARC_PREFETCH (1 << 3) /* I/O is a prefetch */
+#define ARC_CACHED (1 << 4) /* I/O was already in cache */
+
+arc_buf_t *arc_buf_alloc(spa_t *spa, int size, void *tag,
+ arc_buf_contents_t type);
+void arc_buf_add_ref(arc_buf_t *buf, void *tag);
+int arc_buf_remove_ref(arc_buf_t *buf, void *tag);
+int arc_buf_size(arc_buf_t *buf);
+void arc_release(arc_buf_t *buf, void *tag);
+int arc_released(arc_buf_t *buf);
+int arc_has_callback(arc_buf_t *buf);
+void arc_buf_freeze(arc_buf_t *buf);
+void arc_buf_thaw(arc_buf_t *buf);
+#ifdef ZFS_DEBUG
+int arc_referenced(arc_buf_t *buf);
+#endif
+
+int arc_read(zio_t *pio, spa_t *spa, blkptr_t *bp, arc_byteswap_func_t *swap,
+ arc_done_func_t *done, void *private, int priority, int flags,
+ uint32_t *arc_flags, zbookmark_t *zb);
+zio_t *arc_write(zio_t *pio, spa_t *spa, int checksum, int compress,
+ int ncopies, uint64_t txg, blkptr_t *bp, arc_buf_t *buf,
+ arc_done_func_t *ready, arc_done_func_t *done, void *private, int priority,
+ int flags, zbookmark_t *zb);
+int arc_free(zio_t *pio, spa_t *spa, uint64_t txg, blkptr_t *bp,
+ zio_done_func_t *done, void *private, uint32_t arc_flags);
+int arc_tryread(spa_t *spa, blkptr_t *bp, void *data);
+
+void arc_set_callback(arc_buf_t *buf, arc_evict_func_t *func, void *private);
+int arc_buf_evict(arc_buf_t *buf);
+
+void arc_flush(void);
+void arc_tempreserve_clear(uint64_t tempreserve);
+int arc_tempreserve_space(uint64_t tempreserve);
+
+void arc_init(void);
+void arc_fini(void);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* _SYS_ARC_H */
--- /dev/null
+++ sys/cddl/contrib/opensolaris/uts/common/fs/zfs/sys/spa_impl.h
@@ -0,0 +1,168 @@
+/*
+ * CDDL HEADER START
+ *
+ * The contents of this file are subject to the terms of the
+ * Common Development and Distribution License (the "License").
+ * You may not use this file except in compliance with the License.
+ *
+ * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
+ * or http://www.opensolaris.org/os/licensing.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ *
+ * When distributing Covered Code, include this CDDL HEADER in each
+ * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
+ * If applicable, add the following below this CDDL HEADER, with the
+ * fields enclosed by brackets "[]" replaced with your own identifying
+ * information: Portions Copyright [yyyy] [name of copyright owner]
+ *
+ * CDDL HEADER END
+ */
+/*
+ * Copyright 2007 Sun Microsystems, Inc. All rights reserved.
+ * Use is subject to license terms.
+ */
+
+#ifndef _SYS_SPA_IMPL_H
+#define _SYS_SPA_IMPL_H
+
+#pragma ident "%Z%%M% %I% %E% SMI"
+
+#include <sys/spa.h>
+#include <sys/vdev.h>
+#include <sys/metaslab.h>
+#include <sys/dmu.h>
+#include <sys/dsl_pool.h>
+#include <sys/uberblock_impl.h>
+#include <sys/zfs_context.h>
+#include <sys/avl.h>
+#include <sys/refcount.h>
+#include <sys/bplist.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+typedef struct spa_config_lock {
+ kmutex_t scl_lock;
+ refcount_t scl_count;
+ kthread_t *scl_writer;
+ kcondvar_t scl_cv;
+} spa_config_lock_t;
+
+typedef struct spa_error_entry {
+ zbookmark_t se_bookmark;
+ char *se_name;
+ avl_node_t se_avl;
+} spa_error_entry_t;
+
+typedef struct spa_history_phys {
+ uint64_t sh_pool_create_len; /* ending offset of zpool create */
+ uint64_t sh_phys_max_off; /* physical EOF */
+ uint64_t sh_bof; /* logical BOF */
+ uint64_t sh_eof; /* logical EOF */
+ uint64_t sh_records_lost; /* num of records overwritten */
+} spa_history_phys_t;
+
+typedef struct spa_props {
+ nvlist_t *spa_props_nvp;
+ list_node_t spa_list_node;
+} spa_props_t;
+
+struct spa {
+ /*
+ * Fields protected by spa_namespace_lock.
+ */
+ char *spa_name; /* pool name */
+ avl_node_t spa_avl; /* node in spa_namespace_avl */
+ nvlist_t *spa_config; /* last synced config */
+ nvlist_t *spa_config_syncing; /* currently syncing config */
+ uint64_t spa_config_txg; /* txg of last config change */
+ kmutex_t spa_config_cache_lock; /* for spa_config RW_READER */
+ int spa_sync_pass; /* iterate-to-convergence */
+ int spa_state; /* pool state */
+ int spa_inject_ref; /* injection references */
+ uint8_t spa_traverse_wanted; /* traverse lock wanted */
+ uint8_t spa_sync_on; /* sync threads are running */
+ spa_load_state_t spa_load_state; /* current load operation */
+ taskq_t *spa_zio_issue_taskq[ZIO_TYPES];
+ taskq_t *spa_zio_intr_taskq[ZIO_TYPES];
+ dsl_pool_t *spa_dsl_pool;
+ metaslab_class_t *spa_normal_class; /* normal data class */
+ uint64_t spa_first_txg; /* first txg after spa_open() */
+ uint64_t spa_final_txg; /* txg of export/destroy */
+ uint64_t spa_freeze_txg; /* freeze pool at this txg */
+ objset_t *spa_meta_objset; /* copy of dp->dp_meta_objset */
+ txg_list_t spa_vdev_txg_list; /* per-txg dirty vdev list */
+ vdev_t *spa_root_vdev; /* top-level vdev container */
+ uint64_t spa_load_guid; /* initial guid for spa_load */
+ list_t spa_dirty_list; /* vdevs with dirty labels */
+ uint64_t spa_spares_object; /* MOS object for spare list */
+ nvlist_t *spa_sparelist; /* cached spare config */
+ vdev_t **spa_spares; /* available hot spares */
+ int spa_nspares; /* number of hot spares */
+ boolean_t spa_sync_spares; /* sync the spares list */
+ uint64_t spa_config_object; /* MOS object for pool config */
+ uint64_t spa_syncing_txg; /* txg currently syncing */
+ uint64_t spa_sync_bplist_obj; /* object for deferred frees */
+ bplist_t spa_sync_bplist; /* deferred-free bplist */
+ krwlock_t spa_traverse_lock; /* traverse vs. spa_sync() */
+ uberblock_t spa_ubsync; /* last synced uberblock */
+ uberblock_t spa_uberblock; /* current uberblock */
+ kmutex_t spa_scrub_lock; /* resilver/scrub lock */
+ kthread_t *spa_scrub_thread; /* scrub/resilver thread */
+ traverse_handle_t *spa_scrub_th; /* scrub traverse handle */
+ uint64_t spa_scrub_restart_txg; /* need to restart */
+ uint64_t spa_scrub_mintxg; /* min txg we'll scrub */
+ uint64_t spa_scrub_maxtxg; /* max txg we'll scrub */
+ uint64_t spa_scrub_inflight; /* in-flight scrub I/Os */
+ uint64_t spa_scrub_maxinflight; /* max in-flight scrub I/Os */
+ uint64_t spa_scrub_errors; /* scrub I/O error count */
+ int spa_scrub_suspended; /* tell scrubber to suspend */
+ kcondvar_t spa_scrub_cv; /* scrub thread state change */
+ kcondvar_t spa_scrub_io_cv; /* scrub I/O completion */
+ uint8_t spa_scrub_stop; /* tell scrubber to stop */
+ uint8_t spa_scrub_active; /* active or suspended? */
+ uint8_t spa_scrub_type; /* type of scrub we're doing */
+ uint8_t spa_scrub_finished; /* indicator to rotate logs */
+ kmutex_t spa_async_lock; /* protect async state */
+ kthread_t *spa_async_thread; /* thread doing async task */
+ int spa_async_suspended; /* async tasks suspended */
+ kcondvar_t spa_async_cv; /* wait for thread_exit() */
+ uint16_t spa_async_tasks; /* async task mask */
+ char *spa_root; /* alternate root directory */
+ kmutex_t spa_uberblock_lock; /* vdev_uberblock_load_done() */
+ uint64_t spa_ena; /* spa-wide ereport ENA */
+ boolean_t spa_last_open_failed; /* true if last open faled */
+ kmutex_t spa_errlog_lock; /* error log lock */
+ uint64_t spa_errlog_last; /* last error log object */
+ uint64_t spa_errlog_scrub; /* scrub error log object */
+ kmutex_t spa_errlist_lock; /* error list/ereport lock */
+ avl_tree_t spa_errlist_last; /* last error list */
+ avl_tree_t spa_errlist_scrub; /* scrub error list */
+ uint64_t spa_deflate; /* should we deflate? */
+ uint64_t spa_history; /* history object */
+ kmutex_t spa_history_lock; /* history lock */
+ vdev_t *spa_pending_vdev; /* pending vdev additions */
+ nvlist_t **spa_pending_spares; /* pending spare additions */
+ uint_t spa_pending_nspares; /* # pending spares */
+ kmutex_t spa_props_lock; /* property lock */
+ uint64_t spa_pool_props_object; /* object for properties */
+ uint64_t spa_bootfs; /* default boot filesystem */
+ /*
+ * spa_refcnt must be the last element because it changes size based on
+ * compilation options. In order for the MDB module to function
+ * correctly, the other fields must remain in the same location.
+ */
+ spa_config_lock_t spa_config_lock; /* configuration changes */
+ refcount_t spa_refcount; /* number of opens */
+};
+
+extern const char *spa_config_dir;
+extern kmutex_t spa_namespace_lock;
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* _SYS_SPA_IMPL_H */
--- /dev/null
+++ sys/cddl/contrib/opensolaris/uts/common/fs/zfs/sys/metaslab.h
@@ -0,0 +1,69 @@
+/*
+ * CDDL HEADER START
+ *
+ * The contents of this file are subject to the terms of the
+ * Common Development and Distribution License (the "License").
+ * You may not use this file except in compliance with the License.
+ *
+ * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
+ * or http://www.opensolaris.org/os/licensing.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ *
+ * When distributing Covered Code, include this CDDL HEADER in each
+ * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
+ * If applicable, add the following below this CDDL HEADER, with the
+ * fields enclosed by brackets "[]" replaced with your own identifying
+ * information: Portions Copyright [yyyy] [name of copyright owner]
+ *
+ * CDDL HEADER END
+ */
+/*
+ * Copyright 2006 Sun Microsystems, Inc. All rights reserved.
+ * Use is subject to license terms.
+ */
+
+#ifndef _SYS_METASLAB_H
+#define _SYS_METASLAB_H
+
+#pragma ident "%Z%%M% %I% %E% SMI"
+
+#include <sys/spa.h>
+#include <sys/space_map.h>
+#include <sys/txg.h>
+#include <sys/zio.h>
+#include <sys/avl.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+typedef struct metaslab_class metaslab_class_t;
+typedef struct metaslab_group metaslab_group_t;
+
+extern metaslab_t *metaslab_init(metaslab_group_t *mg, space_map_obj_t *smo,
+ uint64_t start, uint64_t size, uint64_t txg);
+extern void metaslab_fini(metaslab_t *msp);
+extern void metaslab_sync(metaslab_t *msp, uint64_t txg);
+extern void metaslab_sync_done(metaslab_t *msp, uint64_t txg);
+
+extern int metaslab_alloc(spa_t *spa, uint64_t psize, blkptr_t *bp,
+ int ncopies, uint64_t txg, blkptr_t *hintbp, boolean_t hintbp_avoid);
+extern void metaslab_free(spa_t *spa, const blkptr_t *bp, uint64_t txg,
+ boolean_t now);
+extern int metaslab_claim(spa_t *spa, const blkptr_t *bp, uint64_t txg);
+
+extern metaslab_class_t *metaslab_class_create(void);
+extern void metaslab_class_destroy(metaslab_class_t *mc);
+extern void metaslab_class_add(metaslab_class_t *mc, metaslab_group_t *mg);
+extern void metaslab_class_remove(metaslab_class_t *mc, metaslab_group_t *mg);
+
+extern metaslab_group_t *metaslab_group_create(metaslab_class_t *mc,
+ vdev_t *vd);
+extern void metaslab_group_destroy(metaslab_group_t *mg);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* _SYS_METASLAB_H */
--- /dev/null
+++ sys/cddl/contrib/opensolaris/uts/common/fs/zfs/sys/txg.h
@@ -0,0 +1,120 @@
+/*
+ * CDDL HEADER START
+ *
+ * The contents of this file are subject to the terms of the
+ * Common Development and Distribution License, Version 1.0 only
+ * (the "License"). You may not use this file except in compliance
+ * with the License.
+ *
+ * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
+ * or http://www.opensolaris.org/os/licensing.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ *
+ * When distributing Covered Code, include this CDDL HEADER in each
+ * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
+ * If applicable, add the following below this CDDL HEADER, with the
+ * fields enclosed by brackets "[]" replaced with your own identifying
+ * information: Portions Copyright [yyyy] [name of copyright owner]
+ *
+ * CDDL HEADER END
+ */
+/*
+ * Copyright 2005 Sun Microsystems, Inc. All rights reserved.
+ * Use is subject to license terms.
+ */
+
+#ifndef _SYS_TXG_H
+#define _SYS_TXG_H
+
+#pragma ident "%Z%%M% %I% %E% SMI"
+
+#include <sys/spa.h>
+#include <sys/zfs_context.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#define TXG_CONCURRENT_STATES 3 /* open, quiescing, syncing */
+#define TXG_SIZE 4 /* next power of 2 */
+#define TXG_MASK (TXG_SIZE - 1) /* mask for size */
+#define TXG_INITIAL TXG_SIZE /* initial txg */
+#define TXG_IDX (txg & TXG_MASK)
+
+#define TXG_WAIT 1ULL
+#define TXG_NOWAIT 2ULL
+
+typedef struct tx_cpu tx_cpu_t;
+
+typedef struct txg_handle {
+ tx_cpu_t *th_cpu;
+ uint64_t th_txg;
+} txg_handle_t;
+
+typedef struct txg_node {
+ struct txg_node *tn_next[TXG_SIZE];
+ uint8_t tn_member[TXG_SIZE];
+} txg_node_t;
+
+typedef struct txg_list {
+ kmutex_t tl_lock;
+ size_t tl_offset;
+ txg_node_t *tl_head[TXG_SIZE];
+} txg_list_t;
+
+struct dsl_pool;
+
+extern void txg_init(struct dsl_pool *dp, uint64_t txg);
+extern void txg_fini(struct dsl_pool *dp);
+extern void txg_sync_start(struct dsl_pool *dp);
+extern void txg_sync_stop(struct dsl_pool *dp);
+extern uint64_t txg_hold_open(struct dsl_pool *dp, txg_handle_t *txghp);
+extern void txg_rele_to_quiesce(txg_handle_t *txghp);
+extern void txg_rele_to_sync(txg_handle_t *txghp);
+extern void txg_suspend(struct dsl_pool *dp);
+extern void txg_resume(struct dsl_pool *dp);
+
+/*
+ * Wait until the given transaction group has finished syncing.
+ * Try to make this happen as soon as possible (eg. kick off any
+ * necessary syncs immediately). If txg==0, wait for the currently open
+ * txg to finish syncing.
+ */
+extern void txg_wait_synced(struct dsl_pool *dp, uint64_t txg);
+
+/*
+ * Wait until the given transaction group, or one after it, is
+ * the open transaction group. Try to make this happen as soon
+ * as possible (eg. kick off any necessary syncs immediately).
+ * If txg == 0, wait for the next open txg.
+ */
+extern void txg_wait_open(struct dsl_pool *dp, uint64_t txg);
+
+/*
+ * Returns TRUE if we are "backed up" waiting for the syncing
+ * transaction to complete; otherwise returns FALSE.
+ */
+extern int txg_stalled(struct dsl_pool *dp);
+
+/*
+ * Per-txg object lists.
+ */
+
+#define TXG_CLEAN(txg) ((txg) - 1)
+
+extern void txg_list_create(txg_list_t *tl, size_t offset);
+extern void txg_list_destroy(txg_list_t *tl);
+extern int txg_list_empty(txg_list_t *tl, uint64_t txg);
+extern int txg_list_add(txg_list_t *tl, void *p, uint64_t txg);
+extern void *txg_list_remove(txg_list_t *tl, uint64_t txg);
+extern void *txg_list_remove_this(txg_list_t *tl, void *p, uint64_t txg);
+extern int txg_list_member(txg_list_t *tl, void *p, uint64_t txg);
+extern void *txg_list_head(txg_list_t *tl, uint64_t txg);
+extern void *txg_list_next(txg_list_t *tl, void *p, uint64_t txg);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* _SYS_TXG_H */
--- /dev/null
+++ sys/cddl/contrib/opensolaris/uts/common/fs/zfs/sys/vdev.h
@@ -0,0 +1,132 @@
+/*
+ * CDDL HEADER START
+ *
+ * The contents of this file are subject to the terms of the
+ * Common Development and Distribution License (the "License").
+ * You may not use this file except in compliance with the License.
+ *
+ * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
+ * or http://www.opensolaris.org/os/licensing.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ *
+ * When distributing Covered Code, include this CDDL HEADER in each
+ * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
+ * If applicable, add the following below this CDDL HEADER, with the
+ * fields enclosed by brackets "[]" replaced with your own identifying
+ * information: Portions Copyright [yyyy] [name of copyright owner]
+ *
+ * CDDL HEADER END
+ */
+/*
+ * Copyright 2007 Sun Microsystems, Inc. All rights reserved.
+ * Use is subject to license terms.
+ */
+
+#ifndef _SYS_VDEV_H
+#define _SYS_VDEV_H
+
+#pragma ident "%Z%%M% %I% %E% SMI"
+
+#include <sys/spa.h>
+#include <sys/zio.h>
+#include <sys/dmu.h>
+#include <sys/space_map.h>
+#include <sys/fs/zfs.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+extern boolean_t zfs_nocacheflush;
+
+/*
+ * Fault injection modes.
+ */
+#define VDEV_FAULT_NONE 0
+#define VDEV_FAULT_RANDOM 1
+#define VDEV_FAULT_COUNT 2
+
+extern int vdev_open(vdev_t *);
+extern int vdev_validate(vdev_t *);
+extern void vdev_close(vdev_t *);
+extern int vdev_create(vdev_t *, uint64_t txg, boolean_t isreplace);
+extern void vdev_init(vdev_t *, uint64_t txg);
+extern void vdev_reopen(vdev_t *);
+extern int vdev_validate_spare(vdev_t *);
+
+extern vdev_t *vdev_lookup_top(spa_t *spa, uint64_t vdev);
+extern vdev_t *vdev_lookup_by_guid(vdev_t *vd, uint64_t guid);
+extern void vdev_dtl_dirty(space_map_t *sm, uint64_t txg, uint64_t size);
+extern int vdev_dtl_contains(space_map_t *sm, uint64_t txg, uint64_t size);
+extern void vdev_dtl_reassess(vdev_t *vd, uint64_t txg, uint64_t scrub_txg,
+ int scrub_done);
+
+extern const char *vdev_description(vdev_t *vd);
+
+extern int vdev_metaslab_init(vdev_t *vd, uint64_t txg);
+extern void vdev_metaslab_fini(vdev_t *vd);
+
+extern void vdev_get_stats(vdev_t *vd, vdev_stat_t *vs);
+extern void vdev_stat_update(zio_t *zio);
+extern void vdev_scrub_stat_update(vdev_t *vd, pool_scrub_type_t type,
+ boolean_t complete);
+extern int vdev_getspec(spa_t *spa, uint64_t vdev, char **vdev_spec);
+extern void vdev_propagate_state(vdev_t *vd);
+extern void vdev_set_state(vdev_t *vd, boolean_t isopen, vdev_state_t state,
+ vdev_aux_t aux);
+
+extern void vdev_space_update(vdev_t *vd, int64_t space_delta,
+ int64_t alloc_delta);
+
+extern uint64_t vdev_psize_to_asize(vdev_t *vd, uint64_t psize);
+
+extern void vdev_io_start(zio_t *zio);
+extern void vdev_io_done(zio_t *zio);
+
+extern int vdev_online(spa_t *spa, uint64_t guid);
+extern int vdev_offline(spa_t *spa, uint64_t guid, int istmp);
+extern void vdev_clear(spa_t *spa, vdev_t *vd);
+
+extern int vdev_error_inject(vdev_t *vd, zio_t *zio);
+extern int vdev_is_dead(vdev_t *vd);
+
+extern void vdev_cache_init(vdev_t *vd);
+extern void vdev_cache_fini(vdev_t *vd);
+extern int vdev_cache_read(zio_t *zio);
+extern void vdev_cache_write(zio_t *zio);
+
+extern void vdev_queue_init(vdev_t *vd);
+extern void vdev_queue_fini(vdev_t *vd);
+extern zio_t *vdev_queue_io(zio_t *zio);
+extern void vdev_queue_io_done(zio_t *zio);
+
+extern void vdev_config_dirty(vdev_t *vd);
+extern void vdev_config_clean(vdev_t *vd);
+extern int vdev_config_sync(vdev_t *vd, uint64_t txg);
+
+extern nvlist_t *vdev_config_generate(spa_t *spa, vdev_t *vd,
+ boolean_t getstats, boolean_t isspare);
+
+/*
+ * Label routines
+ */
+struct uberblock;
+extern uint64_t vdev_label_offset(uint64_t psize, int l, uint64_t offset);
+extern nvlist_t *vdev_label_read_config(vdev_t *vd);
+extern void vdev_uberblock_load(zio_t *zio, vdev_t *vd, struct uberblock *ub);
+
+typedef enum {
+ VDEV_LABEL_CREATE, /* create/add a new device */
+ VDEV_LABEL_REPLACE, /* replace an existing device */
+ VDEV_LABEL_SPARE, /* add a new hot spare */
+ VDEV_LABEL_REMOVE /* remove an existing device */
+} vdev_labeltype_t;
+
+extern int vdev_label_init(vdev_t *vd, uint64_t txg, vdev_labeltype_t reason);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* _SYS_VDEV_H */
--- /dev/null
+++ sys/cddl/contrib/opensolaris/uts/common/fs/zfs/sys/space_map.h
@@ -0,0 +1,162 @@
+/*
+ * CDDL HEADER START
+ *
+ * The contents of this file are subject to the terms of the
+ * Common Development and Distribution License (the "License").
+ * You may not use this file except in compliance with the License.
+ *
+ * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
+ * or http://www.opensolaris.org/os/licensing.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ *
+ * When distributing Covered Code, include this CDDL HEADER in each
+ * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
+ * If applicable, add the following below this CDDL HEADER, with the
+ * fields enclosed by brackets "[]" replaced with your own identifying
+ * information: Portions Copyright [yyyy] [name of copyright owner]
+ *
+ * CDDL HEADER END
+ */
+/*
+ * Copyright 2006 Sun Microsystems, Inc. All rights reserved.
+ * Use is subject to license terms.
+ */
+
+#ifndef _SYS_SPACE_MAP_H
+#define _SYS_SPACE_MAP_H
+
+#pragma ident "%Z%%M% %I% %E% SMI"
+
+#include <sys/avl.h>
+#include <sys/dmu.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+typedef struct space_map_ops space_map_ops_t;
+
+typedef struct space_map {
+ avl_tree_t sm_root; /* AVL tree of map segments */
+ uint64_t sm_space; /* sum of all segments in the map */
+ uint64_t sm_start; /* start of map */
+ uint64_t sm_size; /* size of map */
+ uint8_t sm_shift; /* unit shift */
+ uint8_t sm_pad[3]; /* unused */
+ uint8_t sm_loaded; /* map loaded? */
+ uint8_t sm_loading; /* map loading? */
+ kcondvar_t sm_load_cv; /* map load completion */
+ space_map_ops_t *sm_ops; /* space map block picker ops vector */
+ void *sm_ppd; /* picker-private data */
+ kmutex_t *sm_lock; /* pointer to lock that protects map */
+} space_map_t;
+
+typedef struct space_seg {
+ avl_node_t ss_node; /* AVL node */
+ uint64_t ss_start; /* starting offset of this segment */
+ uint64_t ss_end; /* ending offset (non-inclusive) */
+} space_seg_t;
+
+typedef struct space_map_obj {
+ uint64_t smo_object; /* on-disk space map object */
+ uint64_t smo_objsize; /* size of the object */
+ uint64_t smo_alloc; /* space allocated from the map */
+} space_map_obj_t;
+
+struct space_map_ops {
+ void (*smop_load)(space_map_t *sm);
+ void (*smop_unload)(space_map_t *sm);
+ uint64_t (*smop_alloc)(space_map_t *sm, uint64_t size);
+ void (*smop_claim)(space_map_t *sm, uint64_t start, uint64_t size);
+ void (*smop_free)(space_map_t *sm, uint64_t start, uint64_t size);
+};
+
+/*
+ * debug entry
+ *
+ * 1 3 10 50
+ * ,---+--------+------------+---------------------------------.
+ * | 1 | action | syncpass | txg (lower bits) |
+ * `---+--------+------------+---------------------------------'
+ * 63 62 60 59 50 49 0
+ *
+ *
+ *
+ * non-debug entry
+ *
+ * 1 47 1 15
+ * ,-----------------------------------------------------------.
+ * | 0 | offset (sm_shift units) | type | run |
+ * `-----------------------------------------------------------'
+ * 63 62 17 16 15 0
+ */
+
+/* All this stuff takes and returns bytes */
+#define SM_RUN_DECODE(x) (BF64_DECODE(x, 0, 15) + 1)
+#define SM_RUN_ENCODE(x) BF64_ENCODE((x) - 1, 0, 15)
+#define SM_TYPE_DECODE(x) BF64_DECODE(x, 15, 1)
+#define SM_TYPE_ENCODE(x) BF64_ENCODE(x, 15, 1)
+#define SM_OFFSET_DECODE(x) BF64_DECODE(x, 16, 47)
+#define SM_OFFSET_ENCODE(x) BF64_ENCODE(x, 16, 47)
+#define SM_DEBUG_DECODE(x) BF64_DECODE(x, 63, 1)
+#define SM_DEBUG_ENCODE(x) BF64_ENCODE(x, 63, 1)
+
+#define SM_DEBUG_ACTION_DECODE(x) BF64_DECODE(x, 60, 3)
+#define SM_DEBUG_ACTION_ENCODE(x) BF64_ENCODE(x, 60, 3)
+
+#define SM_DEBUG_SYNCPASS_DECODE(x) BF64_DECODE(x, 50, 10)
+#define SM_DEBUG_SYNCPASS_ENCODE(x) BF64_ENCODE(x, 50, 10)
+
+#define SM_DEBUG_TXG_DECODE(x) BF64_DECODE(x, 0, 50)
+#define SM_DEBUG_TXG_ENCODE(x) BF64_ENCODE(x, 0, 50)
+
+#define SM_RUN_MAX SM_RUN_DECODE(~0ULL)
+
+#define SM_ALLOC 0x0
+#define SM_FREE 0x1
+
+/*
+ * The data for a given space map can be kept on blocks of any size.
+ * Larger blocks entail fewer i/o operations, but they also cause the
+ * DMU to keep more data in-core, and also to waste more i/o bandwidth
+ * when only a few blocks have changed since the last transaction group.
+ * This could use a lot more research, but for now, set the freelist
+ * block size to 4k (2^12).
+ */
+#define SPACE_MAP_BLOCKSHIFT 12
+
+typedef void space_map_func_t(space_map_t *sm, uint64_t start, uint64_t size);
+
+extern void space_map_create(space_map_t *sm, uint64_t start, uint64_t size,
+ uint8_t shift, kmutex_t *lp);
+extern void space_map_destroy(space_map_t *sm);
+extern void space_map_add(space_map_t *sm, uint64_t start, uint64_t size);
+extern void space_map_remove(space_map_t *sm, uint64_t start, uint64_t size);
+extern int space_map_contains(space_map_t *sm, uint64_t start, uint64_t size);
+extern void space_map_vacate(space_map_t *sm,
+ space_map_func_t *func, space_map_t *mdest);
+extern void space_map_walk(space_map_t *sm,
+ space_map_func_t *func, space_map_t *mdest);
+extern void space_map_excise(space_map_t *sm, uint64_t start, uint64_t size);
+extern void space_map_union(space_map_t *smd, space_map_t *sms);
+
+extern void space_map_load_wait(space_map_t *sm);
+extern int space_map_load(space_map_t *sm, space_map_ops_t *ops,
+ uint8_t maptype, space_map_obj_t *smo, objset_t *os);
+extern void space_map_unload(space_map_t *sm);
+
+extern uint64_t space_map_alloc(space_map_t *sm, uint64_t size);
+extern void space_map_claim(space_map_t *sm, uint64_t start, uint64_t size);
+extern void space_map_free(space_map_t *sm, uint64_t start, uint64_t size);
+
+extern void space_map_sync(space_map_t *sm, uint8_t maptype,
+ space_map_obj_t *smo, objset_t *os, dmu_tx_t *tx);
+extern void space_map_truncate(space_map_obj_t *smo,
+ objset_t *os, dmu_tx_t *tx);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* _SYS_SPACE_MAP_H */
--- /dev/null
+++ sys/cddl/contrib/opensolaris/uts/common/fs/zfs/sys/zap_leaf.h
@@ -0,0 +1,234 @@
+/*
+ * CDDL HEADER START
+ *
+ * The contents of this file are subject to the terms of the
+ * Common Development and Distribution License (the "License").
+ * You may not use this file except in compliance with the License.
+ *
+ * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
+ * or http://www.opensolaris.org/os/licensing.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ *
+ * When distributing Covered Code, include this CDDL HEADER in each
+ * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
+ * If applicable, add the following below this CDDL HEADER, with the
+ * fields enclosed by brackets "[]" replaced with your own identifying
+ * information: Portions Copyright [yyyy] [name of copyright owner]
+ *
+ * CDDL HEADER END
+ */
+/*
+ * Copyright 2006 Sun Microsystems, Inc. All rights reserved.
+ * Use is subject to license terms.
+ */
+
+#ifndef _SYS_ZAP_LEAF_H
+#define _SYS_ZAP_LEAF_H
+
+#pragma ident "%Z%%M% %I% %E% SMI"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+struct zap;
+
+#define ZAP_LEAF_MAGIC 0x2AB1EAF
+
+/* chunk size = 24 bytes */
+#define ZAP_LEAF_CHUNKSIZE 24
+
+/*
+ * The amount of space available for chunks is:
+ * block size (1<<l->l_bs) - hash entry size (2) * number of hash
+ * entries - header space (2*chunksize)
+ */
+#define ZAP_LEAF_NUMCHUNKS(l) \
+ (((1<<(l)->l_bs) - 2*ZAP_LEAF_HASH_NUMENTRIES(l)) / \
+ ZAP_LEAF_CHUNKSIZE - 2)
+
+/*
+ * The amount of space within the chunk available for the array is:
+ * chunk size - space for type (1) - space for next pointer (2)
+ */
+#define ZAP_LEAF_ARRAY_BYTES (ZAP_LEAF_CHUNKSIZE - 3)
+
+#define ZAP_LEAF_ARRAY_NCHUNKS(bytes) \
+ (((bytes)+ZAP_LEAF_ARRAY_BYTES-1)/ZAP_LEAF_ARRAY_BYTES)
+
+/*
+ * Low water mark: when there are only this many chunks free, start
+ * growing the ptrtbl. Ideally, this should be larger than a
+ * "reasonably-sized" entry. 20 chunks is more than enough for the
+ * largest directory entry (MAXNAMELEN (256) byte name, 8-byte value),
+ * while still being only around 3% for 16k blocks.
+ */
+#define ZAP_LEAF_LOW_WATER (20)
+
+/*
+ * The leaf hash table has block size / 2^5 (32) number of entries,
+ * which should be more than enough for the maximum number of entries,
+ * which is less than block size / CHUNKSIZE (24) / minimum number of
+ * chunks per entry (3).
+ */
+#define ZAP_LEAF_HASH_SHIFT(l) ((l)->l_bs - 5)
+#define ZAP_LEAF_HASH_NUMENTRIES(l) (1 << ZAP_LEAF_HASH_SHIFT(l))
+
+/*
+ * The chunks start immediately after the hash table. The end of the
+ * hash table is at l_hash + HASH_NUMENTRIES, which we simply cast to a
+ * chunk_t.
+ */
+#define ZAP_LEAF_CHUNK(l, idx) \
+ ((zap_leaf_chunk_t *) \
+ ((l)->l_phys->l_hash + ZAP_LEAF_HASH_NUMENTRIES(l)))[idx]
+#define ZAP_LEAF_ENTRY(l, idx) (&ZAP_LEAF_CHUNK(l, idx).l_entry)
+
+typedef enum zap_chunk_type {
+ ZAP_CHUNK_FREE = 253,
+ ZAP_CHUNK_ENTRY = 252,
+ ZAP_CHUNK_ARRAY = 251,
+ ZAP_CHUNK_TYPE_MAX = 250
+} zap_chunk_type_t;
+
+/*
+ * TAKE NOTE:
+ * If zap_leaf_phys_t is modified, zap_leaf_byteswap() must be modified.
+ */
+typedef struct zap_leaf_phys {
+ struct zap_leaf_header {
+ uint64_t lh_block_type; /* ZBT_LEAF */
+ uint64_t lh_pad1;
+ uint64_t lh_prefix; /* hash prefix of this leaf */
+ uint32_t lh_magic; /* ZAP_LEAF_MAGIC */
+ uint16_t lh_nfree; /* number free chunks */
+ uint16_t lh_nentries; /* number of entries */
+ uint16_t lh_prefix_len; /* num bits used to id this */
+
+/* above is accessable to zap, below is zap_leaf private */
+
+ uint16_t lh_freelist; /* chunk head of free list */
+ uint8_t lh_pad2[12];
+ } l_hdr; /* 2 24-byte chunks */
+
+ /*
+ * The header is followed by a hash table with
+ * ZAP_LEAF_HASH_NUMENTRIES(zap) entries. The hash table is
+ * followed by an array of ZAP_LEAF_NUMCHUNKS(zap)
+ * zap_leaf_chunk structures. These structures are accessed
+ * with the ZAP_LEAF_CHUNK() macro.
+ */
+
+ uint16_t l_hash[1];
+} zap_leaf_phys_t;
+
+typedef union zap_leaf_chunk {
+ struct zap_leaf_entry {
+ uint8_t le_type; /* always ZAP_CHUNK_ENTRY */
+ uint8_t le_int_size; /* size of ints */
+ uint16_t le_next; /* next entry in hash chain */
+ uint16_t le_name_chunk; /* first chunk of the name */
+ uint16_t le_name_length; /* bytes in name, incl null */
+ uint16_t le_value_chunk; /* first chunk of the value */
+ uint16_t le_value_length; /* value length in ints */
+ uint32_t le_cd; /* collision differentiator */
+ uint64_t le_hash; /* hash value of the name */
+ } l_entry;
+ struct zap_leaf_array {
+ uint8_t la_type; /* always ZAP_CHUNK_ARRAY */
+ uint8_t la_array[ZAP_LEAF_ARRAY_BYTES];
+ uint16_t la_next; /* next blk or CHAIN_END */
+ } l_array;
+ struct zap_leaf_free {
+ uint8_t lf_type; /* always ZAP_CHUNK_FREE */
+ uint8_t lf_pad[ZAP_LEAF_ARRAY_BYTES];
+ uint16_t lf_next; /* next in free list, or CHAIN_END */
+ } l_free;
+} zap_leaf_chunk_t;
+
+typedef struct zap_leaf {
+ krwlock_t l_rwlock; /* only used on head of chain */
+ uint64_t l_blkid; /* 1<<ZAP_BLOCK_SHIFT byte block off */
+ int l_bs; /* block size shift */
+ dmu_buf_t *l_dbuf;
+ zap_leaf_phys_t *l_phys;
+} zap_leaf_t;
+
+
+typedef struct zap_entry_handle {
+ /* below is set by zap_leaf.c and is public to zap.c */
+ uint64_t zeh_num_integers;
+ uint64_t zeh_hash;
+ uint32_t zeh_cd;
+ uint8_t zeh_integer_size;
+
+ /* below is private to zap_leaf.c */
+ uint16_t zeh_fakechunk;
+ uint16_t *zeh_chunkp;
+ zap_leaf_t *zeh_leaf;
+} zap_entry_handle_t;
+
+/*
+ * Return a handle to the named entry, or ENOENT if not found. The hash
+ * value must equal zap_hash(name).
+ */
+extern int zap_leaf_lookup(zap_leaf_t *l,
+ const char *name, uint64_t h, zap_entry_handle_t *zeh);
+
+/*
+ * Return a handle to the entry with this hash+cd, or the entry with the
+ * next closest hash+cd.
+ */
+extern int zap_leaf_lookup_closest(zap_leaf_t *l,
+ uint64_t hash, uint32_t cd, zap_entry_handle_t *zeh);
+
+/*
+ * Read the first num_integers in the attribute. Integer size
+ * conversion will be done without sign extension. Return EINVAL if
+ * integer_size is too small. Return EOVERFLOW if there are more than
+ * num_integers in the attribute.
+ */
+extern int zap_entry_read(const zap_entry_handle_t *zeh,
+ uint8_t integer_size, uint64_t num_integers, void *buf);
+
+extern int zap_entry_read_name(const zap_entry_handle_t *zeh,
+ uint16_t buflen, char *buf);
+
+/*
+ * Replace the value of an existing entry.
+ *
+ * zap_entry_update may fail if it runs out of space (ENOSPC).
+ */
+extern int zap_entry_update(zap_entry_handle_t *zeh,
+ uint8_t integer_size, uint64_t num_integers, const void *buf);
+
+/*
+ * Remove an entry.
+ */
+extern void zap_entry_remove(zap_entry_handle_t *zeh);
+
+/*
+ * Create an entry. An equal entry must not exist, and this entry must
+ * belong in this leaf (according to its hash value). Fills in the
+ * entry handle on success. Returns 0 on success or ENOSPC on failure.
+ */
+extern int zap_entry_create(zap_leaf_t *l,
+ const char *name, uint64_t h, uint32_t cd,
+ uint8_t integer_size, uint64_t num_integers, const void *buf,
+ zap_entry_handle_t *zeh);
+
+/*
+ * Other stuff.
+ */
+
+extern void zap_leaf_init(zap_leaf_t *l);
+extern void zap_leaf_byteswap(zap_leaf_phys_t *buf, int len);
+extern void zap_leaf_split(zap_leaf_t *l, zap_leaf_t *nl);
+extern void zap_leaf_stats(zap_t *zap, zap_leaf_t *l, zap_stats_t *zs);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* _SYS_ZAP_LEAF_H */
--- /dev/null
+++ sys/cddl/contrib/opensolaris/uts/common/fs/zfs/sys/zfs_acl.h
@@ -0,0 +1,115 @@
+/*
+ * CDDL HEADER START
+ *
+ * The contents of this file are subject to the terms of the
+ * Common Development and Distribution License (the "License").
+ * You may not use this file except in compliance with the License.
+ *
+ * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
+ * or http://www.opensolaris.org/os/licensing.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ *
+ * When distributing Covered Code, include this CDDL HEADER in each
+ * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
+ * If applicable, add the following below this CDDL HEADER, with the
+ * fields enclosed by brackets "[]" replaced with your own identifying
+ * information: Portions Copyright [yyyy] [name of copyright owner]
+ *
+ * CDDL HEADER END
+ */
+/*
+ * Copyright 2006 Sun Microsystems, Inc. All rights reserved.
+ * Use is subject to license terms.
+ */
+
+#ifndef _SYS_FS_ZFS_ACL_H
+#define _SYS_FS_ZFS_ACL_H
+
+#pragma ident "%Z%%M% %I% %E% SMI"
+
+#ifdef _KERNEL
+#include <sys/cred.h>
+#endif
+#include <sys/acl.h>
+#include <sys/dmu.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+struct znode_phys;
+
+#define ACCESS_UNDETERMINED -1
+
+#define ACE_SLOT_CNT 6
+
+typedef struct zfs_znode_acl {
+ uint64_t z_acl_extern_obj; /* ext acl pieces */
+ uint32_t z_acl_count; /* Number of ACEs */
+ uint16_t z_acl_version; /* acl version */
+ uint16_t z_acl_pad; /* pad */
+ ace_t z_ace_data[ACE_SLOT_CNT]; /* 6 standard ACEs */
+} zfs_znode_acl_t;
+
+#define ACL_DATA_ALLOCED 0x1
+
+/*
+ * Max ACL size is prepended deny for all entries + the
+ * canonical six tacked on * the end.
+ */
+#define MAX_ACL_SIZE (MAX_ACL_ENTRIES * 2 + 6)
+
+typedef struct zfs_acl {
+ int z_slots; /* number of allocated slots for ACEs */
+ int z_acl_count;
+ uint_t z_state;
+ ace_t *z_acl;
+} zfs_acl_t;
+
+#define ZFS_ACL_SIZE(aclcnt) (sizeof (ace_t) * (aclcnt))
+
+/*
+ * Property values for acl_mode and acl_inherit.
+ *
+ * acl_mode can take discard, noallow, groupmask and passthrough.
+ * whereas acl_inherit has secure instead of groupmask.
+ */
+
+#define ZFS_ACL_DISCARD 0
+#define ZFS_ACL_NOALLOW 1
+#define ZFS_ACL_GROUPMASK 2
+#define ZFS_ACL_PASSTHROUGH 3
+#define ZFS_ACL_SECURE 4
+
+struct znode;
+
+#ifdef _KERNEL
+void zfs_perm_init(struct znode *, struct znode *, int, vattr_t *,
+ dmu_tx_t *, cred_t *);
+#ifdef TODO
+int zfs_getacl(struct znode *, vsecattr_t *, cred_t *);
+#endif
+int zfs_mode_update(struct znode *, uint64_t, dmu_tx_t *);
+#ifdef TODO
+int zfs_setacl(struct znode *, vsecattr_t *, cred_t *);
+#endif
+void zfs_acl_rele(void *);
+void zfs_ace_byteswap(ace_t *, int);
+extern int zfs_zaccess(struct znode *, int, cred_t *);
+extern int zfs_zaccess_rwx(struct znode *, mode_t, cred_t *);
+extern int zfs_acl_access(struct znode *, int, cred_t *);
+int zfs_acl_chmod_setattr(struct znode *, uint64_t, dmu_tx_t *);
+int zfs_zaccess_delete(struct znode *, struct znode *, cred_t *);
+int zfs_zaccess_rename(struct znode *, struct znode *,
+ struct znode *, struct znode *, cred_t *cr);
+int zfs_zaccess_v4_perm(struct znode *, int, cred_t *);
+void zfs_acl_free(zfs_acl_t *);
+
+#endif
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* !ZFS_NO_ACL */
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