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authorDarrick J. Wong <darrick.wong@oracle.com>2016-10-03 09:11:52 -0700
committerDarrick J. Wong <darrick.wong@oracle.com>2016-10-05 16:26:31 -0700
commite54b5bf9d7aeb92d92c7f5115035e6a851d0f0c5 (patch)
treebb8475324ce9e718d2f16d79a18e6414fb97269d /fs/xfs/xfs_super.c
parenta35eb41519ab8db90e87d375ee9362d6e080ca4c (diff)
xfs: recognize the reflink feature bit
Add the reflink feature flag to the set of recognized feature flags. This enables users to write to reflink filesystems. Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com> Reviewed-by: Christoph Hellwig <hch@lst.de>
Diffstat (limited to 'fs/xfs/xfs_super.c')
-rw-r--r--fs/xfs/xfs_super.c7
1 files changed, 7 insertions, 0 deletions
diff --git a/fs/xfs/xfs_super.c b/fs/xfs/xfs_super.c
index 15b9fcd16c67..72bde2811bd7 100644
--- a/fs/xfs/xfs_super.c
+++ b/fs/xfs/xfs_super.c
@@ -1614,6 +1614,9 @@ xfs_fs_fill_super(
"DAX unsupported by block device. Turning off DAX.");
mp->m_flags &= ~XFS_MOUNT_DAX;
}
+ if (xfs_sb_version_hasreflink(&mp->m_sb))
+ xfs_alert(mp,
+ "DAX and reflink have not been tested together!");
}
if (xfs_sb_version_hasrmapbt(&mp->m_sb)) {
@@ -1627,6 +1630,10 @@ xfs_fs_fill_super(
"EXPERIMENTAL reverse mapping btree feature enabled. Use at your own risk!");
}
+ if (xfs_sb_version_hasreflink(&mp->m_sb))
+ xfs_alert(mp,
+ "EXPERIMENTAL reflink feature enabled. Use at your own risk!");
+
error = xfs_mountfs(mp);
if (error)
goto out_filestream_unmount;