Commit a54455f5 authored by Chao Yu's avatar Chao Yu Committed by Jaegeuk Kim
Browse files

f2fs: shrink blk plug region 



Don't use blk plug covering area where there won't be any IOs being issued.

Signed-off-by: default avatarChao Yu <yuchao0@huawei.com>
Signed-off-by: default avatarJaegeuk Kim <jaegeuk@kernel.org>
parent 54c2258c

fs/f2fs/segment.c

+2 −4
Original line number Diff line number Diff line
@@ -853,9 +853,8 @@ static int issue_discard_thread(void *data) 
	if (kthread_should_stop())

		return 0;



	blk_start_plug(&plug);



	mutex_lock(&dcc->cmd_lock);

	blk_start_plug(&plug);

	list_for_each_entry_safe(dc, tmp, pend_list, list) {

		f2fs_bug_on(sbi, dc->state != D_PREP);
@@ -865,6 +864,7 @@ static int issue_discard_thread(void *data) 
		if (iter++ > DISCARD_ISSUE_RATE)

			break;

	}

	blk_finish_plug(&plug);



	list_for_each_entry_safe(dc, tmp, wait_list, list) {

		if (dc->state == D_DONE) {
@@ -874,8 +874,6 @@ static int issue_discard_thread(void *data) 
	}

	mutex_unlock(&dcc->cmd_lock);



	blk_finish_plug(&plug);



	iter = 0;

	congestion_wait(BLK_RW_SYNC, HZ/50);