From: Ming Lei <tom.leiming@gmail.com>
To: Jens Axboe <axboe@fb.com>, linux-kernel@vger.kernel.org
Cc: linux-block@vger.kernel.org,
Christoph Hellwig <hch@infradead.org>,
Boaz Harrosh <boaz@plexistor.com>,
Ming Lei <tom.leiming@gmail.com>,
Alasdair Kergon <agk@redhat.com>,
Mike Snitzer <snitzer@redhat.com>,
"maintainer:DEVICE-MAPPER LVM" <dm-devel@redhat.com>,
Shaohua Li <shli@kernel.org>,
"open list:SOFTWARE RAID Multiple Disks SUPPORT"
<linux-raid@vger.kernel.org>
Subject: [PATCH 19/27] dm: dm.c: replace 'bio->bi_vcnt == 1' with !bio_multiple_segments
Date: Tue, 5 Apr 2016 20:07:34 +0800 [thread overview]
Message-ID: <1459858062-21075-5-git-send-email-tom.leiming@gmail.com> (raw)
In-Reply-To: <1459858062-21075-1-git-send-email-tom.leiming@gmail.com>
Signed-off-by: Ming Lei <tom.leiming@gmail.com>
---
drivers/md/dm.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/md/dm.c b/drivers/md/dm.c
index be49057..4c34f88 100644
--- a/drivers/md/dm.c
+++ b/drivers/md/dm.c
@@ -2172,7 +2172,8 @@ static void dm_request_fn(struct request_queue *q)
pos = blk_rq_pos(rq);
if ((dm_request_peeked_before_merge_deadline(md) &&
- md_in_flight(md) && rq->bio && rq->bio->bi_vcnt == 1 &&
+ md_in_flight(md) && rq->bio &&
+ !bio_multiple_segments(rq->bio) &&
md->last_rq_pos == pos && md->last_rq_rw == rq_data_dir(rq)) ||
(ti->type->busy && ti->type->busy(ti))) {
blk_delay_queue(q, HZ / 100);
--
1.9.1
next prev parent reply other threads:[~2016-04-05 12:07 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-04-05 12:07 [PATCH 15/27] bcache: super: use bio_set_vec_table() Ming Lei
2016-04-05 12:07 ` [PATCH 16/27] bcache: super: use bio_get_base_vec Ming Lei
2016-04-05 12:07 ` [PATCH 17/27] dm: crypt: use bio_add_page() Ming Lei
2016-04-05 12:49 ` Christoph Hellwig
2016-04-05 12:07 ` [PATCH 18/27] dm: dm-io.c: use bio_get_base_vec() Ming Lei
2016-04-05 12:07 ` Ming Lei [this message]
2016-04-05 12:07 ` [PATCH 20/27] dm: dm-bufio.c: use bio_set_vec_table() Ming Lei
2016-04-05 13:04 ` Christoph Hellwig
2016-04-05 18:11 ` Mike Snitzer
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