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| author | Jens Axboe <jaxboe@fusionio.com> | 2011-08-19 10:34:48 +0400 |
|---|---|---|
| committer | Jens Axboe <jaxboe@fusionio.com> | 2011-08-19 10:34:48 +0400 |
| commit | b53d1ed734a2b9af8da115b836b658daa7d47a48 (patch) | |
| tree | 07ed12caa6fd50f97568f419448cf03906d980c4 /Documentation/kernel-parameters.txt | |
| parent | 4853abaae7e4a2af938115ce9071ef8684fb7af4 (diff) | |
| download | linux-b53d1ed734a2b9af8da115b836b658daa7d47a48.tar.xz | |
Revert "cfq: Remove special treatment for metadata rqs."
We have a kernel build regression since 3.1-rc1, which is about 10%
regression. The kernel source is in an ext3 filesystem.
Alex Shi bisect it to commit:
commit a07405b7802691d29ab3b23bdc76ee6d006aad0b
Author: Justin TerAvest <teravest@google.com>
Date: Sun Jul 10 22:09:19 2011 +0200
cfq: Remove special treatment for metadata rqs.
Apparently this is caused by lack metadata preemption, where ext3/ext4
do use READ_META. I didn't see a way to fix the issue, so suggest
reverting the patch.
This reverts commit a07405b7802691d29ab3b23bdc76ee6d006aad0b.
Reported-by: Alex Shi<alex.shi@intel.com>
Reported-by: Shaohua Li<shaohua.li@intel.com>
Signed-off-by: Jens Axboe <jaxboe@fusionio.com>
Diffstat (limited to 'Documentation/kernel-parameters.txt')
0 files changed, 0 insertions, 0 deletions