From a54455f5eeb8d65455a27b3ace99f9af295b2897 Mon Sep 17 00:00:00 2001 From: Chao Yu Date: Mon, 27 Mar 2017 18:14:05 +0800 Subject: f2fs: shrink blk plug region Don't use blk plug covering area where there won't be any IOs being issued. Signed-off-by: Chao Yu Signed-off-by: Jaegeuk Kim --- fs/f2fs/segment.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) (limited to 'fs/f2fs') diff --git a/fs/f2fs/segment.c b/fs/f2fs/segment.c index 471ea9944412..58cfbe3d4dc7 100644 --- a/fs/f2fs/segment.c +++ b/fs/f2fs/segment.c @@ -853,9 +853,8 @@ repeat: 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 @@ repeat: 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 @@ repeat: } mutex_unlock(&dcc->cmd_lock); - blk_finish_plug(&plug); - iter = 0; congestion_wait(BLK_RW_SYNC, HZ/50); -- cgit v1.2.3-58-ga151