lk/linux-kernel-test
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

ocfs2: Support commit= mount option

Browse Source 
Mostly taken from ext3. This allows the user to set the jbd commit interval,
in seconds. The default of 5 seconds stays the same, but now users can
easily increase the commit interval. Typically, this would be increased in
order to benefit performance at the expense of data-safety.

Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
This commit is contained in:
Mark Fasheh
2007-11-07 14:40:36 -08:00
parent 0957f00796
commit d147b3d630
4 changed files with 41 additions and 2 deletions
Download Patch File Download Diff File Expand all files Collapse all files

11
Documentation/filesystems/ocfs2.txt
View File

@ -61,3 +61,14 @@ data=writeback Data ordering is not preserved, data may be written
preferred_slot=0(*) During mount, try to use this filesystem slot first. If
it is in use by another node, the first empty one found
will be chosen. Invalid values will be ignored.
commit=nrsec (*) Ocfs2 can be told to sync all its data and metadata
every 'nrsec' seconds. The default value is 5 seconds.
This means that if you lose your power, you will lose
as much as the latest 5 seconds of work (your
filesystem will not be damaged though, thanks to the
journaling). This default value (or any low value)
will hurt performance, but it's good for data-safety.
Setting it to 0 will have the same effect as leaving
it at the default (5 seconds).
Setting it to very large values will improve
performance.