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authorDave Chinner <dchinner@redhat.com>2016-12-09 16:49:54 +1100
committerDave Chinner <david@fromorbit.com>2016-12-09 16:49:54 +1100
commit4cf4573d899cd80d8578c050061dc342f99f3a32 (patch)
treefe0acfaabf6c3326e5497798da642000ee1111aa /Documentation/filesystems
parent2291dab2c9d1880efd19469df2042e2277c8b7a4 (diff)
downloadlinux-4cf4573d899cd80d8578c050061dc342f99f3a32.tar.gz
xfs: deprecate barrier/nobarrier mount option
We always perform integrity operations now, so these mount options
don't do anything. Deprecate them and mark them for removal in
in a year.

Signed-Off-By: Dave Chinner <dchinner@redhat.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Dave Chinner <david@fromorbit.com>


Diffstat (limited to 'Documentation/filesystems')
-rw-r--r--Documentation/filesystems/xfs.txt12
1 files changed, 4 insertions, 8 deletions
diff --git a/Documentation/filesystems/xfs.txt b/Documentation/filesystems/xfs.txt
index c2d44e6e117b..3b9b5c149f32 100644
--- a/Documentation/filesystems/xfs.txt
+++ b/Documentation/filesystems/xfs.txt
@@ -51,13 +51,6 @@ default behaviour.
 	CRC enabled filesystems always use the attr2 format, and so
 	will reject the noattr2 mount option if it is set.
 
-  barrier (*)
-  nobarrier
-	Enables/disables the use of block layer write barriers for
-	writes into the journal and for data integrity operations.
-	This allows for drive level write caching to be enabled, for
-	devices that support write barriers.
-
   discard
   nodiscard (*)
 	Enable/disable the issuing of commands to let the block
@@ -228,7 +221,10 @@ default behaviour.
 Deprecated Mount Options
 ========================
 
-None at present.
+  Name				Removal Schedule
+  ----				----------------
+  barrier			no earlier than v4.15
+  nobarrier			no earlier than v4.15
 
 
 Removed Mount Options