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| author | Mark Fasheh <mark.fasheh@oracle.com> | 2007-11-08 01:40:36 +0300 |
|---|---|---|
| committer | Mark Fasheh <mark.fasheh@oracle.com> | 2008-01-26 02:05:42 +0300 |
| commit | d147b3d630edef1d34de6ea819787a1ac1b8603b (patch) | |
| tree | bd417b27fd58fa3c44be6b8451d929f848981ffd /Documentation/filesystems | |
| parent | 0957f00796157564281ea6ff2cea7ef4f897775a (diff) | |
| download | linux-d147b3d630edef1d34de6ea819787a1ac1b8603b.tar.xz | |
ocfs2: Support commit= mount option
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>
Diffstat (limited to 'Documentation/filesystems')
| -rw-r--r-- | Documentation/filesystems/ocfs2.txt | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/Documentation/filesystems/ocfs2.txt b/Documentation/filesystems/ocfs2.txt index e78abdcc59ee..b63bd2d7fcd3 100644 --- a/Documentation/filesystems/ocfs2.txt +++ b/Documentation/filesystems/ocfs2.txt @@ -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. |