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authorJens Axboe <jaxboe@fusionio.com>2011-08-19 08:34:48 +0200
committerJens Axboe <jaxboe@fusionio.com>2011-08-19 08:34:48 +0200
commitb53d1ed734a2b9af8da115b836b658daa7d47a48 (patch)
tree07ed12caa6fd50f97568f419448cf03906d980c4 /fs/squashfs
parentblock: fix flush machinery for stacking drivers with differring flush flags (diff)
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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>
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