block: also check RQF_STATS in blk_mq_need_time_stamp()
authorHou Tao <houtao1@huawei.com>
Tue, 21 May 2019 07:59:04 +0000 (15:59 +0800)
committerJens Axboe <axboe@kernel.dk>
Sun, 15 Sep 2019 22:02:10 +0000 (16:02 -0600)
commit9a91b05bba58e5bd83034e69407d11641e8064e9
treec34f358f4b21023c234beb88a43d473e361f8a6f
parent3d24430694077313c75c6b89f618db09943621e4
block: also check RQF_STATS in blk_mq_need_time_stamp()

In __blk_mq_end_request() if block stats needs update, we should
ensure now is valid instead of 0 even when iostat is disabled.

Signed-off-by: Hou Tao <houtao1@huawei.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
block/blk-mq.c