From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: From: Chao Yu To: jaegeuk@kernel.org Cc: linux-f2fs-devel@lists.sourceforge.net, linux-kernel@vger.kernel.org, Chao Yu , stable@vger.kernel.org Subject: [PATCH 2/3] f2fs: wake up all waiters in f2fs_submit_discard_endio Date: Fri, 19 May 2017 23:46:44 +0800 Message-Id: <20170519154645.20121-2-chao@kernel.org> In-Reply-To: <20170519154645.20121-1-chao@kernel.org> References: <20170519154645.20121-1-chao@kernel.org> Sender: linux-kernel-owner@vger.kernel.org List-ID: From: Chao Yu There could be more than one waiter waiting discard IO completion, so we need use complete_all() instead of complete() in f2fs_submit_discard_endio to avoid hungtask. Fixes: ec9895add2c5 ("f2fs: don't hold cmd_lock during waiting discard command") Cc: Signed-off-by: Chao Yu --- fs/f2fs/segment.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/fs/f2fs/segment.c b/fs/f2fs/segment.c index d310b82caef1..2b11119d9071 100644 --- a/fs/f2fs/segment.c +++ b/fs/f2fs/segment.c @@ -751,7 +751,7 @@ static void f2fs_submit_discard_endio(struct bio *bio) dc->error = bio->bi_error; dc->state = D_DONE; - complete(&dc->wait); + complete_all(&dc->wait); bio_put(bio); } -- 2.12.2.575.gb14f27f