From bb24174754afc5a7d185ca5406dcfbc608cdf157 Mon Sep 17 00:00:00 2001 From: ZiyangZhang Date: Mon, 15 Aug 2022 10:36:32 +0800 Subject: [PATCH] ublk_drv: update comment for __ublk_fail_req() Since __ublk_rq_task_work always fails requests immediately during exiting, __ublk_fail_req() is only called from abort context during exiting. So lock is unnecessary. Signed-off-by: ZiyangZhang Reviewed-by: Ming Lei Link: https://lore.kernel.org/r/20220815023633.259825-3-ZiyangZhang@linux.alibaba.com Signed-off-by: Jens Axboe --- drivers/block/ublk_drv.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/drivers/block/ublk_drv.c b/drivers/block/ublk_drv.c index 1789617..685a43b 100644 --- a/drivers/block/ublk_drv.c +++ b/drivers/block/ublk_drv.c @@ -605,8 +605,9 @@ static void ublk_complete_rq(struct request *req) } /* - * __ublk_fail_req() may be called from abort context or ->ubq_daemon - * context during exiting, so lock is required. + * Since __ublk_rq_task_work always fails requests immediately during + * exiting, __ublk_fail_req() is only called from abort context during + * exiting. So lock is unnecessary. * * Also aborting may not be started yet, keep in mind that one failed * request may be issued by block layer again. -- 2.7.4