f2fs: fix out-of-order execution in f2fs_issue_flush

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In f2fs_issue_flush, due to out-of-order execution of CPU, wake_up can
be called before we insert issue_list, result in long latency of
wait_for_completion. Fix this by adding smp_mb() to force the order of
related codes.

Signed-off-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>

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Chao Yu 2017-08-21 22:53:45 +08:00 • committed by Jaegeuk Kim

parent 5f656541ff

commit 6f890df0a7

1 changed files with 4 additions and 1 deletions

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fs/f2fs/segment.c

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