f2fs: reduce cmd_lock coverage in __issue_discard_cmd

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__submit_discard_cmd may lead long latency due to exhaustion of I/O
request resource in block layer, so issuing all discard under cmd_lock
may lead to hangtask, in order to avoid that, let's reduce it's coverage.

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

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Chao Yu 2017-10-04 09:08:35 +08:00 • committed by Jaegeuk Kim

parent 78997b569f

commit 33da62cf7a

1 changed files with 10 additions and 8 deletions

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fs/f2fs/segment.c

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