[XFS] Fix up noattr2 so that it will properly update the versionnum and

features2 fields.

Previously, mounting with noattr2 failed to achieve anything because
although it cleared the attr2 mount flag, it would set it again as soon as
it processed the superblock fields. The fix now has an explicit noattr2
flag and uses it later to fix up the versionnum and features2 fields.

SGI-PV: 980021
SGI-Modid: xfs-linux-melb:xfs-kern:31003a

Signed-off-by: Tim Shimmin <tes@sgi.com>
Signed-off-by: Christoph Hellwig <hch@infradead.org>
Signed-off-by: Lachlan McIlroy <lachlan@sgi.com>

1 files changed, 1 insertions, 0 deletions

diff --git a/fs/xfs/xfs_clnt.h b/fs/xfs/xfs_clnt.h
index d5d1e60ee224..d2ce5dd70d87 100644
--- a/fs/xfs/xfs_clnt.h
+++ b/fs/xfs/xfs_clnt.h
@@ -78,6 +78,7 @@ struct xfs_mount_args {
 #define XFSMNT_IOSIZE           0x00002000      /* optimize for I/O size */
 #define XFSMNT_OSYNCISOSYNC     0x00004000      /* o_sync is REALLY o_sync */
                                                 /* (osyncisdsync is default) */
+#define XFSMNT_NOATTR2          0x00008000      /* turn off ATTR2 EA format */
 #define XFSMNT_32BITINODES      0x00200000      /* restrict inodes to 32
                                                  * bits of address space */
 #define XFSMNT_GQUOTA           0x00400000      /* group quota accounting */