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authorDave Chinner <dchinner@redhat.com>2013-06-05 12:09:09 +1000
committerBen Myers <bpm@sgi.com>2013-06-06 10:51:34 -0500
commitf763fd440e094be37b38596ee14f1d64caa9bf9c (patch)
treeec730f5619f5e010d2314214046c777cda0fd04e /fs/xfs
parentad868afddb908a5d4015c6b7637721b48fb9c8f9 (diff)
xfs: disable noattr2/attr2 mount options for CRC enabled filesystems
attr2 format is always enabled for v5 superblock filesystems, so the mount options to enable or disable it need to be cause mount errors. Signed-off-by: Dave Chinner <dchinner@redhat.com> Reviewed-by: Brian Foster <bfoster@redhat.com> Signed-off-by: Ben Myers <bpm@sgi.com> (cherry picked from commit d3eaace84e40bf946129e516dcbd617173c1cf14)
Diffstat (limited to 'fs/xfs')
-rw-r--r--fs/xfs/xfs_super.c11
1 files changed, 11 insertions, 0 deletions
diff --git a/fs/xfs/xfs_super.c b/fs/xfs/xfs_super.c
index ea341cea68c..3033ba5e976 100644
--- a/fs/xfs/xfs_super.c
+++ b/fs/xfs/xfs_super.c
@@ -1373,6 +1373,17 @@ xfs_finish_flags(
}
/*
+ * V5 filesystems always use attr2 format for attributes.
+ */
+ if (xfs_sb_version_hascrc(&mp->m_sb) &&
+ (mp->m_flags & XFS_MOUNT_NOATTR2)) {
+ xfs_warn(mp,
+"Cannot mount a V5 filesystem as %s. %s is always enabled for V5 filesystems.",
+ MNTOPT_NOATTR2, MNTOPT_ATTR2);
+ return XFS_ERROR(EINVAL);
+ }
+
+ /*
* mkfs'ed attr2 will turn on attr2 mount unless explicitly
* told by noattr2 to turn it off
*/