Commit cba60849 authored by Chao Yu's avatar Chao Yu Committed by Jaegeuk Kim
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f2fs: turn down IO priority of discard from background 



In order to avoid interfering normal r/w IO, let's turn down IO
priority of discard issued from background.

Signed-off-by: default avatarChao Yu <yuchao0@huawei.com>
Signed-off-by: default avatarJaegeuk Kim <jaegeuk@kernel.org>
parent 377224c4

fs/f2fs/segment.c

+1 −0
Original line number Diff line number Diff line
@@ -931,6 +931,7 @@ static void __init_discard_policy(struct f2fs_sb_info *sbi, 
		dpolicy->min_interval = DEF_MIN_DISCARD_ISSUE_TIME;

		dpolicy->max_interval = DEF_MAX_DISCARD_ISSUE_TIME;

		dpolicy->io_aware = true;

		dpolicy->sync = false;

		if (utilization(sbi) > DEF_DISCARD_URGENT_UTIL) {

			dpolicy->granularity = 1;

			dpolicy->max_interval = DEF_MIN_DISCARD_ISSUE_TIME;