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ext3: update documentation with barrier=1 default 

Commit 00eacd6 ("ext3: make ext3 mount default to barrier=1") changed
the default barrier mount option for ext3.  The documentation needs to
be updated, so this patch does that.

Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
Signed-off-by: Jan Kara <jack@suse.cz>
This commit is contained in:
Stefan Hajnoczi 2012-03-28 09:32:32 +01:00 committed by Jan Kara
parent ac0dd24748
commit ee65244b21
1 changed files with 3 additions and 3 deletions
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6
Documentation/filesystems/ext3.txt
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@ -59,9 +59,9 @@ commit=nrsec (*) Ext3 can be told to sync all its data and metadata
Setting it to very large values will improve Setting it to very large values will improve
performance. performance.
barrier=<0(*)|1> This enables/disables the use of write barriers in barrier=<0|1(*)> This enables/disables the use of write barriers in
barrier the jbd code. barrier=0 disables, barrier=1 enables. barrier (*) the jbd code. barrier=0 disables, barrier=1 enables.
nobarrier (*) This also requires an IO stack which can support nobarrier This also requires an IO stack which can support
barriers, and if jbd gets an error on a barrier barriers, and if jbd gets an error on a barrier
write, it will disable again with a warning. write, it will disable again with a warning.
Write barriers enforce proper on-disk ordering Write barriers enforce proper on-disk ordering