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/* |
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* CDDL HEADER START |
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* |
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* The contents of this file are subject to the terms of the |
| 5 |
* Common Development and Distribution License (the "License"). |
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* You may not use this file except in compliance with the License. |
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* |
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* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE |
| 9 |
* or http://www.opensolaris.org/os/licensing. |
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* See the License for the specific language governing permissions |
| 11 |
* and limitations under the License. |
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* |
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* When distributing Covered Code, include this CDDL HEADER in each |
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* file and include the License file at usr/src/OPENSOLARIS.LICENSE. |
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* If applicable, add the following below this CDDL HEADER, with the |
| 16 |
* fields enclosed by brackets "[]" replaced with your own identifying |
| 17 |
* information: Portions Copyright [yyyy] [name of copyright owner] |
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* |
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* CDDL HEADER END |
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*/ |
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/* |
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* Copyright 2007 Sun Microsystems, Inc. All rights reserved. |
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* Use is subject to license terms. |
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*/ |
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|
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#ifndef _SYS_ZFS_CONTEXT_H |
| 27 |
#define _SYS_ZFS_CONTEXT_H |
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|
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#pragma ident "%Z%%M% %I% %E% SMI" |
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|
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#ifdef __cplusplus |
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extern "C" { |
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#endif |
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|
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#define _SYS_MUTEX_H |
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#define _SYS_RWLOCK_H |
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#define _SYS_CONDVAR_H |
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#define _SYS_SYSTM_H |
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#define _SYS_DEBUG_H |
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#define _SYS_T_LOCK_H |
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#define _SYS_VNODE_H |
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#define _SYS_VFS_H |
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#define _SYS_SUNDDI_H |
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#define _SYS_CALLB_H |
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#define _SYS_SCHED_H_ |
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|
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#include <solaris.h> |
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#include <stdio.h> |
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#include <stdlib.h> |
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#include <stddef.h> |
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#include <stdarg.h> |
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#include <fcntl.h> |
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#include <unistd.h> |
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#include <errno.h> |
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#include <string.h> |
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#include <strings.h> |
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#include <thread.h> |
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#include <assert.h> |
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#include <limits.h> |
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#include <dirent.h> |
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#include <time.h> |
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#include <math.h> |
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#include <umem.h> |
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#include <vmem.h> |
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#include <fsshare.h> |
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#include <sys/note.h> |
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#include <sys/types.h> |
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#include <sys/atomic.h> |
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#include <sys/sysmacros.h> |
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#include <sys/bitmap.h> |
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#include <sys/resource.h> |
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#include <sys/byteorder.h> |
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#include <sys/list.h> |
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#include <sys/time.h> |
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#include <sys/uio.h> |
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#include <sys/mntent.h> |
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#include <sys/mnttab.h> |
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#include <sys/zfs_debug.h> |
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#include <sys/debug.h> |
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#include <sys/sdt.h> |
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#include <sys/kstat.h> |
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#include <sys/kernel.h> |
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#include <sys/disk.h> |
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#include <machine/atomic.h> |
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|
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#define ZFS_EXPORTS_PATH "/etc/zfs/exports" |
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|
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/* |
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* Debugging |
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*/ |
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|
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/* |
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* Note that we are not using the debugging levels. |
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*/ |
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|
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#define CE_CONT 0 /* continuation */ |
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#define CE_NOTE 1 /* notice */ |
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#define CE_WARN 2 /* warning */ |
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#define CE_PANIC 3 /* panic */ |
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#define CE_IGNORE 4 /* print nothing */ |
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|
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/* |
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* ZFS debugging |
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*/ |
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|
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#define ZFS_LOG(...) do { } while (0) |
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|
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typedef u_longlong_t rlim64_t; |
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#define RLIM64_INFINITY ((rlim64_t)-3) |
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|
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#ifdef ZFS_DEBUG |
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extern void dprintf_setup(int *argc, char **argv); |
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#endif /* ZFS_DEBUG */ |
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|
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extern void cmn_err(int, const char *, ...); |
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extern void vcmn_err(int, const char *, __va_list); |
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extern void panic(const char *, ...); |
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extern void vpanic(const char *, __va_list); |
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|
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/* This definition is copied from assert.h. */ |
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#if defined(__STDC__) |
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#if __STDC_VERSION__ - 0 >= 199901L |
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#define verify(EX) (void)((EX) || \ |
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(__assert_c99(#EX, __FILE__, __LINE__, __func__), 0)) |
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#else |
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#define verify(EX) (void)((EX) || (__assert(#EX, __FILE__, __LINE__), 0)) |
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#endif /* __STDC_VERSION__ - 0 >= 199901L */ |
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#else |
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#define verify(EX) (void)((EX) || (_assert("EX", __FILE__, __LINE__), 0)) |
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#endif /* __STDC__ */ |
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|
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|
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#define VERIFY verify |
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#define ASSERT assert |
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|
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extern void __assert(const char *, const char *, int); |
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|
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#ifdef lint |
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#define VERIFY3_IMPL(x, y, z, t) if (x == z) ((void)0) |
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#else |
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/* BEGIN CSTYLED */ |
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#define VERIFY3_IMPL(LEFT, OP, RIGHT, TYPE) do { \ |
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const TYPE __left = (TYPE)(LEFT); \ |
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const TYPE __right = (TYPE)(RIGHT); \ |
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if (!(__left OP __right)) { \ |
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char *__buf = alloca(256); \ |
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(void) snprintf(__buf, 256, "%s %s %s (0x%llx %s 0x%llx)", \ |
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#LEFT, #OP, #RIGHT, \ |
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(u_longlong_t)__left, #OP, (u_longlong_t)__right); \ |
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__assert(__buf, __FILE__, __LINE__); \ |
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} \ |
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_NOTE(CONSTCOND) } while (0) |
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/* END CSTYLED */ |
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#endif /* lint */ |
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|
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#define VERIFY3S(x, y, z) VERIFY3_IMPL(x, y, z, int64_t) |
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#define VERIFY3U(x, y, z) VERIFY3_IMPL(x, y, z, uint64_t) |
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#define VERIFY3P(x, y, z) VERIFY3_IMPL(x, y, z, uintptr_t) |
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|
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#ifdef NDEBUG |
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#define ASSERT3S(x, y, z) ((void)0) |
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#define ASSERT3U(x, y, z) ((void)0) |
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#define ASSERT3P(x, y, z) ((void)0) |
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#else |
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#define ASSERT3S(x, y, z) VERIFY3S(x, y, z) |
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#define ASSERT3U(x, y, z) VERIFY3U(x, y, z) |
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#define ASSERT3P(x, y, z) VERIFY3P(x, y, z) |
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#endif |
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|
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/* |
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* Dtrace SDT probes have different signatures in userland than they do in |
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* kernel. If they're being used in kernel code, re-define them out of |
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* existence for their counterparts in libzpool. |
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*/ |
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|
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#ifdef DTRACE_PROBE1 |
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#undef DTRACE_PROBE1 |
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#define DTRACE_PROBE1(a, b, c) ((void)0) |
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#endif /* DTRACE_PROBE1 */ |
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|
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#ifdef DTRACE_PROBE2 |
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#undef DTRACE_PROBE2 |
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#define DTRACE_PROBE2(a, b, c, d, e) ((void)0) |
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#endif /* DTRACE_PROBE2 */ |
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|
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#ifdef DTRACE_PROBE3 |
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#undef DTRACE_PROBE3 |
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#define DTRACE_PROBE3(a, b, c, d, e, f, g) ((void)0) |
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#endif /* DTRACE_PROBE3 */ |
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|
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#ifdef DTRACE_PROBE4 |
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#undef DTRACE_PROBE4 |
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#define DTRACE_PROBE4(a, b, c, d, e, f, g, h, i) ((void)0) |
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#endif /* DTRACE_PROBE4 */ |
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|
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/* |
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* Threads |
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*/ |
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#define curthread ((void *)(uintptr_t)thr_self()) |
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|
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typedef struct kthread kthread_t; |
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|
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#define thread_create(stk, stksize, func, arg, len, pp, state, pri) \ |
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zk_thread_create(func, arg) |
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#define thread_exit() thr_exit(NULL) |
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|
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extern kthread_t *zk_thread_create(void (*func)(), void *arg); |
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|
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#define issig(why) (FALSE) |
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#define ISSIG(thr, why) (FALSE) |
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|
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/* |
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* Mutexes |
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*/ |
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typedef struct kmutex { |
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void *m_owner; |
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mutex_t m_lock; |
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} kmutex_t; |
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|
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#define MUTEX_DEFAULT USYNC_THREAD |
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#undef MUTEX_HELD |
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#define MUTEX_HELD(m) ((m)->m_owner == curthread) |
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|
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/* |
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* Argh -- we have to get cheesy here because the kernel and userland |
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* have different signatures for the same routine. |
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*/ |
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//extern int _mutex_init(mutex_t *mp, int type, void *arg); |
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//extern int _mutex_destroy(mutex_t *mp); |
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|
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#define mutex_init(mp, b, c, d) zmutex_init((kmutex_t *)(mp)) |
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#define mutex_destroy(mp) zmutex_destroy((kmutex_t *)(mp)) |
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|
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extern void zmutex_init(kmutex_t *mp); |
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extern void zmutex_destroy(kmutex_t *mp); |
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extern void mutex_enter(kmutex_t *mp); |
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extern void mutex_exit(kmutex_t *mp); |
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extern int mutex_tryenter(kmutex_t *mp); |
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extern void *mutex_owner(kmutex_t *mp); |
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|
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/* |
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* RW locks |
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*/ |
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typedef struct krwlock { |
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int rw_count; |
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void *rw_owner; |
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rwlock_t rw_lock; |
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} krwlock_t; |
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|
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typedef int krw_t; |
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|
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#define RW_READER 0 |
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#define RW_WRITER 1 |
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#define RW_DEFAULT USYNC_THREAD |
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|
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#undef RW_READ_HELD |
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|
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#undef RW_WRITE_HELD |
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#define RW_WRITE_HELD(x) ((x)->rw_owner == curthread) |
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#define RW_LOCK_HELD(x) rw_lock_held(x) |
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|
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extern void rw_init(krwlock_t *rwlp, char *name, int type, void *arg); |
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extern void rw_destroy(krwlock_t *rwlp); |
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extern void rw_enter(krwlock_t *rwlp, krw_t rw); |
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extern int rw_tryenter(krwlock_t *rwlp, krw_t rw); |
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extern int rw_tryupgrade(krwlock_t *rwlp); |
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extern void rw_exit(krwlock_t *rwlp); |
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extern int rw_lock_held(krwlock_t *rwlp); |
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#define rw_downgrade(rwlp) do { } while (0) |
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|
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/* |
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* Condition variables |
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*/ |
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typedef cond_t kcondvar_t; |
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|
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#define CV_DEFAULT USYNC_THREAD |
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|
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extern void cv_init(kcondvar_t *cv, char *name, int type, void *arg); |
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extern void cv_destroy(kcondvar_t *cv); |
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extern void cv_wait(kcondvar_t *cv, kmutex_t *mp); |
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extern clock_t cv_timedwait(kcondvar_t *cv, kmutex_t *mp, clock_t abstime); |
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extern void cv_signal(kcondvar_t *cv); |
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extern void cv_broadcast(kcondvar_t *cv); |
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|
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/* |
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* Kernel memory |
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*/ |
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#define KM_SLEEP UMEM_NOFAIL |
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#define KM_NOSLEEP UMEM_DEFAULT |
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#define KMC_NODEBUG UMC_NODEBUG |
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#define kmem_alloc(_s, _f) umem_alloc(_s, _f) |
| 292 |
#define kmem_zalloc(_s, _f) umem_zalloc(_s, _f) |
| 293 |
#define kmem_free(_b, _s) umem_free(_b, _s) |
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#define kmem_size() (physmem * PAGESIZE) |
| 295 |
#define kmem_cache_create(_a, _b, _c, _d, _e, _f, _g, _h, _i) \ |
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umem_cache_create(_a, _b, _c, _d, _e, _f, _g, _h, _i) |
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#define kmem_cache_destroy(_c) umem_cache_destroy(_c) |
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#define kmem_cache_alloc(_c, _f) umem_cache_alloc(_c, _f) |
| 299 |
#define kmem_cache_free(_c, _b) umem_cache_free(_c, _b) |
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#define kmem_debugging() 0 |
| 301 |
#define kmem_cache_reap_now(c) |
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|
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typedef umem_cache_t kmem_cache_t; |
| 304 |
|
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/* |
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* Task queues |
| 307 |
*/ |
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typedef struct taskq taskq_t; |
| 309 |
typedef uintptr_t taskqid_t; |
| 310 |
typedef void (task_func_t)(void *); |
| 311 |
|
| 312 |
#define TASKQ_PREPOPULATE 0x0001 |
| 313 |
#define TASKQ_CPR_SAFE 0x0002 /* Use CPR safe protocol */ |
| 314 |
#define TASKQ_DYNAMIC 0x0004 /* Use dynamic thread scheduling */ |
| 315 |
|
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#define TQ_SLEEP KM_SLEEP /* Can block for memory */ |
| 317 |
#define TQ_NOSLEEP KM_NOSLEEP /* cannot block for memory; may fail */ |
| 318 |
#define TQ_NOQUEUE 0x02 /* Do not enqueue if can't dispatch */ |
| 319 |
|
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extern taskq_t *taskq_create(const char *, int, pri_t, int, int, uint_t); |
| 321 |
extern taskqid_t taskq_dispatch(taskq_t *, task_func_t, void *, uint_t); |
| 322 |
extern void taskq_destroy(taskq_t *); |
| 323 |
extern void taskq_wait(taskq_t *); |
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extern int taskq_member(taskq_t *, void *); |
| 325 |
|
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/* |
| 327 |
* vnodes |
| 328 |
*/ |
| 329 |
typedef struct vnode { |
| 330 |
uint64_t v_size; |
| 331 |
int v_fd; |
| 332 |
char *v_path; |
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} vnode_t; |
| 334 |
|
| 335 |
typedef struct vattr { |
| 336 |
uint_t va_mask; /* bit-mask of attributes */ |
| 337 |
u_offset_t va_size; /* file size in bytes */ |
| 338 |
} vattr_t; |
| 339 |
|
| 340 |
#define AT_TYPE 0x0001 |
| 341 |
#define AT_MODE 0x0002 |
| 342 |
#define AT_UID 0x0004 |
| 343 |
#define AT_GID 0x0008 |
| 344 |
#define AT_FSID 0x0010 |
| 345 |
#define AT_NODEID 0x0020 |
| 346 |
#define AT_NLINK 0x0040 |
| 347 |
#define AT_SIZE 0x0080 |
| 348 |
#define AT_ATIME 0x0100 |
| 349 |
#define AT_MTIME 0x0200 |
| 350 |
#define AT_CTIME 0x0400 |
| 351 |
#define AT_RDEV 0x0800 |
| 352 |
#define AT_BLKSIZE 0x1000 |
| 353 |
#define AT_NBLOCKS 0x2000 |
| 354 |
#define AT_SEQ 0x8000 |
| 355 |
|
| 356 |
#define CRCREAT 0 |
| 357 |
|
| 358 |
#define VOP_CLOSE(vp, f, c, o, cr) 0 |
| 359 |
#define VOP_PUTPAGE(vp, of, sz, fl, cr) 0 |
| 360 |
#define VOP_GETATTR(vp, vap, fl, cr) ((vap)->va_size = (vp)->v_size, 0) |
| 361 |
|
| 362 |
#define VOP_FSYNC(vp, f, cr) fsync((vp)->v_fd) |
| 363 |
|
| 364 |
#define VN_RELE(vp) vn_close(vp) |
| 365 |
|
| 366 |
extern int vn_open(char *path, int x1, int oflags, int mode, vnode_t **vpp, |
| 367 |
int x2, int x3); |
| 368 |
extern int vn_openat(char *path, int x1, int oflags, int mode, vnode_t **vpp, |
| 369 |
int x2, int x3, vnode_t *vp); |
| 370 |
extern int vn_rdwr(int uio, vnode_t *vp, void *addr, ssize_t len, |
| 371 |
offset_t offset, int x1, int x2, rlim64_t x3, void *x4, ssize_t *residp); |
| 372 |
extern void vn_close(vnode_t *vp); |
| 373 |
|
| 374 |
#define vn_remove(path, x1, x2) remove(path) |
| 375 |
#define vn_rename(from, to, seg) rename((from), (to)) |
| 376 |
#define vn_is_readonly(vp) B_FALSE |
| 377 |
|
| 378 |
extern vnode_t *rootdir; |
| 379 |
|
| 380 |
#include <sys/file.h> /* for FREAD, FWRITE, etc */ |
| 381 |
#define FTRUNC O_TRUNC |
| 382 |
|
| 383 |
/* |
| 384 |
* Random stuff |
| 385 |
*/ |
| 386 |
#define lbolt (gethrtime() >> 23) |
| 387 |
#define lbolt64 (gethrtime() >> 23) |
| 388 |
//#define hz 119 /* frequency when using gethrtime() >> 23 for lbolt */ |
| 389 |
|
| 390 |
extern void delay(clock_t ticks); |
| 391 |
|
| 392 |
#define gethrestime_sec() time(NULL) |
| 393 |
|
| 394 |
#define max_ncpus 64 |
| 395 |
|
| 396 |
#define minclsyspri 60 |
| 397 |
#define maxclsyspri 99 |
| 398 |
|
| 399 |
#define CPU_SEQID (thr_self() & (max_ncpus - 1)) |
| 400 |
|
| 401 |
#define kcred NULL |
| 402 |
#define CRED() NULL |
| 403 |
|
| 404 |
extern uint64_t physmem; |
| 405 |
|
| 406 |
extern int highbit(ulong_t i); |
| 407 |
extern int random_get_bytes(uint8_t *ptr, size_t len); |
| 408 |
extern int random_get_pseudo_bytes(uint8_t *ptr, size_t len); |
| 409 |
|
| 410 |
extern void kernel_init(int); |
| 411 |
extern void kernel_fini(void); |
| 412 |
|
| 413 |
struct spa; |
| 414 |
extern void nicenum(uint64_t num, char *buf); |
| 415 |
extern void show_pool_stats(struct spa *); |
| 416 |
|
| 417 |
typedef struct callb_cpr { |
| 418 |
kmutex_t *cc_lockp; |
| 419 |
} callb_cpr_t; |
| 420 |
|
| 421 |
#define CALLB_CPR_INIT(cp, lockp, func, name) { \ |
| 422 |
(cp)->cc_lockp = lockp; \ |
| 423 |
} |
| 424 |
|
| 425 |
#define CALLB_CPR_SAFE_BEGIN(cp) { \ |
| 426 |
ASSERT(MUTEX_HELD((cp)->cc_lockp)); \ |
| 427 |
} |
| 428 |
|
| 429 |
#define CALLB_CPR_SAFE_END(cp, lockp) { \ |
| 430 |
ASSERT(MUTEX_HELD((cp)->cc_lockp)); \ |
| 431 |
} |
| 432 |
|
| 433 |
#define CALLB_CPR_EXIT(cp) { \ |
| 434 |
ASSERT(MUTEX_HELD((cp)->cc_lockp)); \ |
| 435 |
mutex_exit((cp)->cc_lockp); \ |
| 436 |
} |
| 437 |
|
| 438 |
#define zone_dataset_visible(x, y) (1) |
| 439 |
#define INGLOBALZONE(z) (1) |
| 440 |
|
| 441 |
/* |
| 442 |
* Hostname information |
| 443 |
*/ |
| 444 |
extern struct utsname utsname; |
| 445 |
extern char hw_serial[]; |
| 446 |
extern int ddi_strtoul(const char *str, char **nptr, int base, |
| 447 |
unsigned long *result); |
| 448 |
|
| 449 |
/* ZFS Boot Related stuff. */ |
| 450 |
|
| 451 |
struct _buf { |
| 452 |
intptr_t _fd; |
| 453 |
}; |
| 454 |
|
| 455 |
struct bootstat { |
| 456 |
uint64_t st_size; |
| 457 |
}; |
| 458 |
|
| 459 |
extern struct _buf *kobj_open_file(char *name); |
| 460 |
extern int kobj_read_file(struct _buf *file, char *buf, unsigned size, |
| 461 |
unsigned off); |
| 462 |
extern void kobj_close_file(struct _buf *file); |
| 463 |
extern int kobj_get_filesize(struct _buf *file, uint64_t *size); |
| 464 |
/* Random compatibility stuff. */ |
| 465 |
#define lbolt (gethrtime() >> 23) |
| 466 |
#define lbolt64 (gethrtime() >> 23) |
| 467 |
|
| 468 |
extern int hz; |
| 469 |
extern uint64_t physmem; |
| 470 |
|
| 471 |
#define gethrestime_sec() time(NULL) |
| 472 |
|
| 473 |
#define open64(...) open(__VA_ARGS__) |
| 474 |
#define pread64(d, p, n, o) pread(d, p, n, o) |
| 475 |
#define pwrite64(d, p, n, o) pwrite(d, p, n, o) |
| 476 |
#define readdir64(d) readdir(d) |
| 477 |
#define SIGPENDING(td) (0) |
| 478 |
#define root_mount_wait() do { } while (0) |
| 479 |
#define root_mounted() (1) |
| 480 |
|
| 481 |
struct file { |
| 482 |
void *dummy; |
| 483 |
}; |
| 484 |
|
| 485 |
#define FCREAT O_CREAT |
| 486 |
#define FOFFMAX 0x0 |
| 487 |
|
| 488 |
#define SX_SYSINIT(name, lock, desc) |
| 489 |
|
| 490 |
#define SYSCTL_DECL(...) |
| 491 |
#define SYSCTL_NODE(...) |
| 492 |
#define SYSCTL_INT(...) |
| 493 |
#define SYSCTL_ULONG(...) |
| 494 |
#ifdef TUNABLE_INT |
| 495 |
#undef TUNABLE_INT |
| 496 |
#undef TUNABLE_ULONG |
| 497 |
#endif |
| 498 |
#define TUNABLE_INT(...) |
| 499 |
#define TUNABLE_ULONG(...) |
| 500 |
|
| 501 |
/* Errors */ |
| 502 |
|
| 503 |
#ifndef ERESTART |
| 504 |
#define ERESTART (-1) |
| 505 |
#endif |
| 506 |
|
| 507 |
#ifdef __cplusplus |
| 508 |
} |
| 509 |
#endif |
| 510 |
|
| 511 |
#endif /* _SYS_ZFS_CONTEXT_H */ |
