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authorQu Wenruo <quwenruo@cn.fujitsu.com>2014-01-06 09:58:32 +0800
committerChris Mason <clm@fb.com>2014-01-28 13:20:20 -0800
commitd399167d88ea53590d6c0850b2d5534cbd21da02 (patch)
treead340d5afe66275fc2d5c0c86998ba2a0a1d9ab6 /Documentation/filesystems
parenta258af7a3e395a1d36190c81614dca0bcb5f6012 (diff)
downloadblackbird-op-linux-d399167d88ea53590d6c0850b2d5534cbd21da02.tar.gz
blackbird-op-linux-d399167d88ea53590d6c0850b2d5534cbd21da02.zip
btrfs: Add datasum mount option.
Add datasum mount option to enable checksum with remount option. Signed-off-by: Qu Wenruo <quwenruo@cn.fujitsu.com> Reviewed-by: David Sterba <dsterba@suse.cz> Signed-off-by: Josef Bacik <jbacik@fb.com> Signed-off-by: Chris Mason <clm@fb.com>
Diffstat (limited to 'Documentation/filesystems')
-rw-r--r--Documentation/filesystems/btrfs.txt4
1 files changed, 3 insertions, 1 deletions
diff --git a/Documentation/filesystems/btrfs.txt b/Documentation/filesystems/btrfs.txt
index bbd1f0f57ce9..e05c6aecc0cc 100644
--- a/Documentation/filesystems/btrfs.txt
+++ b/Documentation/filesystems/btrfs.txt
@@ -159,8 +159,10 @@ Options with (*) are default options and will not show in the mount options.
Enable/disable data copy-on-write for newly created files.
Nodatacow implies nodatasum, and disables all compression.
+ datasum(*)
nodatasum
- Disable data checksumming for newly created files.
+ Enable/disable data checksumming for newly created files.
+ Datasum implies datacow.
notreelog
Disable the tree logging used for fsync and O_SYNC writes.
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