Author: jh
Date: Wed Apr 18 15:22:08 2012
New Revision: 234422
URL: http://svn.freebsd.org/changeset/base/234422
Log:
Return EOPNOTSUPP rather than EPERM for the SF_SNAPSHOT flag because
tmpfs doesn't support snapshots.
Suggested by: bde
Modified:
head/sys/fs/tmpfs/tmpfs_subr.c
Modified: head/sys/fs/tmpfs/tmpfs_subr.c
==============================================================================
--- head/sys/fs/tmpfs/tmpfs_subr.c Wed Apr 18 15:19:00 2012
(r234421)
+++ head/sys/fs/tmpfs/tmpfs_subr.c Wed Apr 18 15:22:08 2012
(r234422)
@@ -1080,7 +1080,7 @@ tmpfs_chflags(struct vnode *vp, int flag
if ((flags & ~(UF_NODUMP | UF_IMMUTABLE | UF_APPEND | UF_OPAQUE |
UF_NOUNLINK | SF_ARCHIVED | SF_IMMUTABLE | SF_APPEND |
- SF_NOUNLINK | SF_SNAPSHOT)) != 0)
+ SF_NOUNLINK)) != 0)
return (EOPNOTSUPP);
/* Disallow this operation if the file system is mounted read-only. */
@@ -1104,9 +1104,6 @@ tmpfs_chflags(struct vnode *vp, int flag
if (error)
return (error);
}
- /* The snapshot flag cannot be toggled. */
- if ((flags ^ node->tn_flags) & SF_SNAPSHOT)
- return (EPERM);
} else {
if (node->tn_flags &
(SF_NOUNLINK | SF_IMMUTABLE | SF_APPEND) ||
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