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f2fs: fix to avoid long latency during umount 

In umount, we give an constand time to handle pending discard, previously,
in __issue_discard_cmd() we missed to check timeout condition in loop,
result in delaying long time, fix it.

Signed-off-by: Heng Xiao <heng.xiao@unisoc.com>
[Chao Yu: add commit message]
Signed-off-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
This commit is contained in:
Heng Xiao 2019-07-03 10:29:57 +08:00 committed by Jaegeuk Kim
parent b13bdf03bb
commit 6e0cd4a9dd
1 changed files with 4 additions and 0 deletions
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4
fs/f2fs/segment.c
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@ -1497,6 +1497,10 @@ static int __issue_discard_cmd(struct f2fs_sb_info *sbi,
list_for_each_entry_safe(dc, tmp, pend_list, list) {
f2fs_bug_on(sbi, dc->state != D_PREP);
if (dpolicy->timeout != 0 &&
f2fs_time_over(sbi, dpolicy->timeout))
break;
if (dpolicy->io_aware && i < dpolicy->io_aware_gran &&
!is_idle(sbi, DISCARD_TIME)) {
io_interrupted = true;