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Groups > linux.kernel > #1371480

[PATCH 19/27] dm: dm.c: replace 'bio->bi_vcnt == 1' with !bio_multiple_segments

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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

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[PATCH 15/27] bcache: super: use bio_set_vec_table() Ming Lei <tom.leiming@gmail.com> - 2016-04-05 14:10 +0200
  [PATCH 18/27] dm: dm-io.c: use bio_get_base_vec() Ming Lei <tom.leiming@gmail.com> - 2016-04-05 14:10 +0200
  [PATCH 22/27] fs: logfs: convert to bio_add_page() in sync_request() Ming Lei <tom.leiming@gmail.com> - 2016-04-05 14:10 +0200
    Re: [PATCH 22/27] fs: logfs: convert to bio_add_page() in  sync_request() Christoph Hellwig <hch@infradead.org> - 2016-04-05 15:00 +0200
  [PATCH 19/27] dm: dm.c: replace 'bio->bi_vcnt == 1' with !bio_multiple_segments Ming Lei <tom.leiming@gmail.com> - 2016-04-05 14:10 +0200
  [PATCH 26/27] kernel/power/swap.c: use bio_get_base_vec() Ming Lei <tom.leiming@gmail.com> - 2016-04-05 14:20 +0200
    Re: [PATCH 26/27] kernel/power/swap.c: use bio_get_base_vec() Christoph Hellwig <hch@infradead.org> - 2016-04-05 15:00 +0200
      Re: [PATCH 26/27] kernel/power/swap.c: use bio_get_base_vec() Ming Lei <tom.leiming@gmail.com> - 2016-04-05 15:20 +0200
  [PATCH 25/27] fs: logfs: remove unnecesary check Ming Lei <tom.leiming@gmail.com> - 2016-04-05 14:20 +0200
  [PATCH 27/27] mm: page_io.c: use bio_get_base_vec() Ming Lei <tom.leiming@gmail.com> - 2016-04-05 14:20 +0200
  [PATCH 24/27] fs: logfs: use bio_add_page() in do_erase() Ming Lei <tom.leiming@gmail.com> - 2016-04-05 14:20 +0200

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