Messages in this thread Patch in this message | | | Subject | Re: [PATCH] Add "-o bh" option to ext3 | From | Badari Pulavarty <> | Date | Mon, 13 Mar 2006 16:33:20 -0800 |
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On Mon, 2006-03-13 at 10:52 +0100, Pavel Machek wrote: > On Pá 10-03-06 10:49:50, Badari Pulavarty wrote: > > Its not really need for now, but as we try to make "nobh" > > as default option, it would be nice to have a "-obh" fallback > > option - if things go wrong. > > Docs patch is missing... > > ...and no, it is not even clear to me what bh vs. nobh does... > > Pavel
Hope this helps.
Thanks, Badari
Signed-off-by: Badari Pulavarty <pbadari@us.ibm.com> Index: linux-2.6.16-rc6/Documentation/filesystems/ext3.txt =================================================================== --- linux-2.6.16-rc6.orig/Documentation/filesystems/ext3.txt 2006-03-11 14:12:55.000000000 -0800 +++ linux-2.6.16-rc6/Documentation/filesystems/ext3.txt 2006-03-13 16:38:36.000000000 -0800 @@ -113,6 +113,14 @@ noquota grpquota usrquota +bh (*) ext3 associates buffer heads to data pages to +nobh (a) cache disk block mapping information + (b) link pages into transaction to provide + ordering guarantees. + "bh" option forces use of buffer heads. + "nobh" option tries to avoid associating buffer + heads (supported only for "writeback" mode). + Specification =============
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