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authorDave Chinner <dchinner@redhat.com>2013-06-05 12:09:09 +1000
committerBen Myers <bpm@sgi.com>2013-06-05 11:21:06 -0500
commitd3eaace84e40bf946129e516dcbd617173c1cf14 (patch)
treed8545904cdce2eabfa9128f55dc445cff3585ba3 /fs/xfs
parent0a32c26e720a8b38971d0685976f4a7d63f9e2ef (diff)
downloadop-kernel-dev-d3eaace84e40bf946129e516dcbd617173c1cf14.zip
op-kernel-dev-d3eaace84e40bf946129e516dcbd617173c1cf14.tar.gz
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>
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 ea341ce..3033ba5 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
*/
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