svn commit: r247889 - stable/8/sys/cddl/contrib/opensolaris/uts/common/fs/zfs

[Andriy Gapon]

Author: avg
Date: Wed Mar  6 11:11:18 2013
New Revision: 247889
URL: http://svnweb.freebsd.org/changeset/base/247889

Log:
  MFC r246532: zfs_vget, zfs_fhtovp: properly handle the z_shares_dir object

Modified:
  stable/8/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/zfs_vfsops.c
Directory Properties:
  stable/8/sys/   (props changed)
  stable/8/sys/cddl/   (props changed)
  stable/8/sys/cddl/contrib/opensolaris/   (props changed)

Modified: stable/8/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/zfs_vfsops.c
==============================================================================
--- stable/8/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/zfs_vfsops.c	Wed Mar  6 11:11:02 2013	(r247888)
+++ stable/8/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/zfs_vfsops.c	Wed Mar  6 11:11:18 2013	(r247889)
@@ -2018,7 +2018,8 @@ zfs_vget(vfs_t *vfsp, ino_t ino, int fla
 	 * .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);
@@ -2108,14 +2109,22 @@ zfs_fhtovp(vfs_t *vfsp, fid_t *fidp, vno
 		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);
 		}