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From: NeilBrown <neilb@suse.com>
To: Jens Axboe <axboe@kernel.dk>, Jack Wang <jinpu.wang@profitbricks.com>
Cc: LKML <linux-kernel@vger.kernel.org>,
	Lars Ellenberg <lars.ellenberg@linbit.com>,
	Kent Overstreet <kent.overstreet@gmail.com>,
	Pavel Machek <pavel@ucw.cz>, Mike Snitzer <snitzer@redhat.com>,
	Mikulas Patocka <mpatocka@redhat.com>,
	linux-raid@vger.kernel.org,
	device-mapper development <dm-devel@redhat.com>,
	linux-block@vger.kernel.org
Subject: [PATCH 5/5] block_dev: make blkdev_dio_pool a non-rescuing bioset
Date: Fri, 10 Mar 2017 15:37:41 +1100	[thread overview]
Message-ID: <87y3wdg31m.fsf@notabene.neil.brown.name> (raw)
In-Reply-To: <87d1dphhuy.fsf@notabene.neil.brown.name>

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Allocations from blkdev_dio_pool are never made under
generic_make_request, so this bioset does not need a rescuer thread.

Signed-off-by: NeilBrown <neilb@suse.com>
---
 fs/block_dev.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/fs/block_dev.c b/fs/block_dev.c
index c0ca5f0d0369..2eca00ec4370 100644
--- a/fs/block_dev.c
+++ b/fs/block_dev.c
@@ -436,7 +436,7 @@ blkdev_direct_IO(struct kiocb *iocb, struct iov_iter *iter)
 
 static __init int blkdev_init(void)
 {
-	blkdev_dio_pool = bioset_create_rescued(4, offsetof(struct blkdev_dio, bio));
+	blkdev_dio_pool = bioset_create(4, offsetof(struct blkdev_dio, bio));
 	if (!blkdev_dio_pool)
 		return -ENOMEM;
 	return 0;



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  parent reply	other threads:[~2017-03-10  4:37 UTC|newest]

Thread overview: 36+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-03-03  5:14 [PATCH] blk: improve order of bio handling in generic_make_request() NeilBrown
2017-03-03  9:28 ` Jack Wang
2017-03-06  4:40   ` NeilBrown
2017-03-06  9:43     ` Jack Wang
2017-03-07 15:46       ` Pavel Machek
2017-03-07 15:53         ` Jack Wang
2017-03-07 16:21         ` Jens Axboe
2017-03-06 20:18     ` Jens Axboe
2017-03-07  8:49       ` Jack Wang
2017-03-07 16:52         ` Mike Snitzer
2017-03-07 17:05           ` Jens Axboe
2017-03-07 17:14             ` Mike Snitzer
2017-03-07 20:29               ` NeilBrown
2017-03-07 23:01                 ` Mike Snitzer
2017-03-08 16:40                 ` Mikulas Patocka
2017-03-08 17:15                   ` Lars Ellenberg
2017-03-09  6:08                   ` NeilBrown
2017-03-08 11:46           ` Lars Ellenberg
2017-03-07 20:38       ` [PATCH v2] " NeilBrown
2017-03-10  4:32         ` NeilBrown
2017-03-10  4:33           ` [PATCH 1/5 v3] " NeilBrown
2017-03-10  4:34           ` [PATCH 2/5] blk: remove bio_set arg from blk_queue_split() NeilBrown
2017-03-10  4:35           ` [PATCH 3/5] blk: make the bioset rescue_workqueue optional NeilBrown
2017-03-10  4:36           ` [PATCH 4/5] blk: use non-rescuing bioset for q->bio_split NeilBrown
2017-03-10  4:37           ` NeilBrown [this message]
2017-03-10  4:38           ` [PATCH v2] blk: improve order of bio handling in generic_make_request() Jens Axboe
2017-03-10  4:40             ` Jens Axboe
2017-03-10  5:19             ` NeilBrown
2017-03-10 12:34               ` Lars Ellenberg
2017-03-10 14:38                 ` Mike Snitzer
2017-03-10 14:55                   ` Mikulas Patocka
2017-03-10 15:07                     ` Jack Wang
2017-03-10 15:35                       ` Mike Snitzer
2017-03-10 18:51                       ` Lars Ellenberg
2017-03-11  0:47                 ` NeilBrown
2017-03-10  6:00 [PATCH 0/5] Updates following recent generic_make_request improvement NeilBrown
2017-03-10  6:00 ` [PATCH 5/5] block_dev: make blkdev_dio_pool a non-rescuing bioset NeilBrown

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