[Midnightbsd-cvs] src [8908] trunk/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/zfs_vfsops.c: zfs_vget, zfs_fhtovp: properly handle the z_shares_dir object.

[laffer1 at midnightbsd.org]

Revision: 8908
          http://svnweb.midnightbsd.org/src/?rev=8908
Author:   laffer1
Date:     2016-09-26 18:42:58 -0400 (Mon, 26 Sep 2016)
Log Message:
-----------
zfs_vget, zfs_fhtovp: properly handle the z_shares_dir object.

Modified Paths:
--------------
    trunk/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/zfs_vfsops.c

Modified: trunk/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/zfs_vfsops.c
===================================================================
--- trunk/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/zfs_vfsops.c	2016-09-26 22:42:31 UTC (rev 8907)
+++ trunk/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/zfs_vfsops.c	2016-09-26 22:42:58 UTC (rev 8908)
@@ -2010,7 +2010,8 @@
 	 * .zfs/snapshot/ directories, that's why we return EOPNOTSUPP.
 	 * This will make NFS to switch to LOOKUP instead of using VGET.
 	 */
-	if (ino == ZFSCTL_INO_ROOT || ino == ZFSCTL_INO_SNAPDIR)
+	if (ino == ZFSCTL_INO_ROOT || ino == ZFSCTL_INO_SNAPDIR ||
+	    (zfsvfs->z_shares_dir != 0 && ino == zfsvfs->z_shares_dir))
 		return (EOPNOTSUPP);
 
 	ZFS_ENTER(zfsvfs);
@@ -2102,14 +2103,22 @@
 		return (EINVAL);
 	}
 
-	/* A zero fid_gen means we are in the .zfs control directories */
-	if (fid_gen == 0 &&
-	    (object == ZFSCTL_INO_ROOT || object == ZFSCTL_INO_SNAPDIR)) {
+	/*
+	 * A zero fid_gen means we are in .zfs or the .zfs/snapshot
+	 * directory tree. If the object == zfsvfs->z_shares_dir, then
+	 * we are in the .zfs/shares directory tree.
+	 */
+	if ((fid_gen == 0 &&
+	     (object == ZFSCTL_INO_ROOT || object == ZFSCTL_INO_SNAPDIR)) ||
+	    (zfsvfs->z_shares_dir != 0 && object == zfsvfs->z_shares_dir)) {
 		*vpp = zfsvfs->z_ctldir;
 		ASSERT(*vpp != NULL);
 		if (object == ZFSCTL_INO_SNAPDIR) {
 			VERIFY(zfsctl_root_lookup(*vpp, "snapshot", vpp, NULL,
 			    0, NULL, NULL, NULL, NULL, NULL) == 0);
+		} else if (object == zfsvfs->z_shares_dir) {
+			VERIFY(zfsctl_root_lookup(*vpp, "shares", vpp, NULL,
+			    0, NULL, NULL, NULL, NULL, NULL) == 0);
 		} else {
 			VN_HOLD(*vpp);
 		}