From: Alasdair G Kergon <agk@redhat.com>
To: Kent Overstreet <koverstreet@google.com>
Cc: Mikulas Patocka <mpatocka@redhat.com>,
Jens Axboe <axboe@kernel.dk>,
dm-devel@redhat.com, linux-kernel@vger.kernel.org,
linux-bcache@vger.kernel.org, bharrosh@panasas.com,
tj@kernel.org, vgoyal@redhat.com
Subject: Re: [dm-devel] [PATCH v7 9/9] block: Avoid deadlocks with bio allocation by stacking drivers
Date: Wed, 29 Aug 2012 17:57:58 +0100 [thread overview]
Message-ID: <20120829165758.GA5576@agk-dp.fab.redhat.com> (raw)
In-Reply-To: <20120829165006.GB20312@google.com>
On Wed, Aug 29, 2012 at 09:50:06AM -0700, Kent Overstreet wrote:
> The other thing we could do is make the rescuer thread per block device
> (which arguably makes more sense than per bio_set anyways), then
> associate bio_sets with specific block devices/rescuers.
For dm, it's equivalent - already one bioset required per live device:
dm_alloc_md_mempools().
Alasdair
next prev parent reply other threads:[~2012-08-29 16:58 UTC|newest]
Thread overview: 75+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-08-28 17:37 [PATCH v7 0/9] Block cleanups, deadlock fix Kent Overstreet
2012-08-28 17:37 ` [PATCH v7 1/9] block: Generalized bio pool freeing Kent Overstreet
2012-08-28 17:37 ` [PATCH v7 2/9] dm: Use bioset's front_pad for dm_rq_clone_bio_info Kent Overstreet
2012-08-28 17:37 ` [PATCH v7 3/9] block: Add bio_reset() Kent Overstreet
2012-08-28 20:31 ` Tejun Heo
2012-08-28 22:17 ` Kent Overstreet
2012-08-28 22:53 ` Kent Overstreet
2012-09-01 2:23 ` Tejun Heo
2012-09-05 20:13 ` Kent Overstreet
2012-08-28 17:37 ` [PATCH v7 4/9] pktcdvd: Switch to bio_kmalloc() Kent Overstreet
2012-08-28 20:32 ` Tejun Heo
2012-08-28 22:24 ` Kent Overstreet
2012-09-04 9:05 ` Jiri Kosina
2012-09-05 19:44 ` Kent Overstreet
2012-08-28 17:37 ` [PATCH v7 5/9] block: Kill bi_destructor Kent Overstreet
2012-08-28 20:36 ` Tejun Heo
2012-08-28 22:07 ` Kent Overstreet
2012-08-28 17:37 ` [PATCH v7 6/9] block: Consolidate bio_alloc_bioset(), bio_kmalloc() Kent Overstreet
2012-08-28 20:41 ` Tejun Heo
2012-08-28 22:03 ` Kent Overstreet
2012-09-01 2:17 ` Tejun Heo
2012-08-28 17:37 ` [PATCH v7 7/9] block: Add bio_clone_bioset(), bio_clone_kmalloc() Kent Overstreet
2012-08-28 20:44 ` Tejun Heo
2012-08-28 22:05 ` Kent Overstreet
2012-09-01 2:19 ` Tejun Heo
2012-08-28 17:37 ` [PATCH v7 8/9] block: Reorder struct bio_set Kent Overstreet
2012-08-28 17:37 ` [PATCH v7 9/9] block: Avoid deadlocks with bio allocation by stacking drivers Kent Overstreet
2012-08-28 20:49 ` Tejun Heo
2012-08-28 22:28 ` Kent Overstreet
2012-08-28 23:01 ` Kent Overstreet
2012-08-29 1:31 ` Vivek Goyal
2012-08-29 3:25 ` Kent Overstreet
2012-08-29 12:57 ` Vivek Goyal
2012-08-29 14:39 ` [dm-devel] " Alasdair G Kergon
2012-08-29 16:26 ` Kent Overstreet
2012-08-29 21:01 ` John Stoffel
2012-08-29 21:08 ` Kent Overstreet
2012-08-28 22:06 ` Vivek Goyal
2012-08-28 22:23 ` Kent Overstreet
2012-08-29 16:24 ` Mikulas Patocka
2012-08-29 16:50 ` Kent Overstreet
2012-08-29 16:57 ` Alasdair G Kergon [this message]
2012-08-29 17:07 ` Vivek Goyal
2012-08-29 17:13 ` Kent Overstreet
2012-08-29 17:23 ` [dm-devel] " Alasdair G Kergon
2012-08-29 17:32 ` Kent Overstreet
2012-08-30 22:07 ` Vivek Goyal
2012-08-31 1:43 ` Kent Overstreet
2012-08-31 1:55 ` Kent Overstreet
2012-08-31 15:01 ` Vivek Goyal
2012-09-03 1:26 ` Kent Overstreet
2012-09-03 20:41 ` Mikulas Patocka
2012-09-04 3:41 ` Kent Overstreet
2012-09-04 18:55 ` Tejun Heo
2012-09-04 19:01 ` Tejun Heo
2012-09-04 19:43 ` Kent Overstreet
2012-09-04 19:42 ` Kent Overstreet
2012-09-04 21:03 ` Tejun Heo
2012-09-04 19:26 ` Mikulas Patocka
2012-09-04 19:39 ` Vivek Goyal
2012-09-04 19:51 ` [PATCH] dm: Use bioset's front_pad for dm_target_io Kent Overstreet
2012-09-04 21:20 ` Tejun Heo
2012-09-11 19:28 ` [PATCH 2] " Mikulas Patocka
2012-09-11 19:50 ` Kent Overstreet
2012-09-12 22:31 ` Mikulas Patocka
2012-09-14 23:09 ` [dm-devel] " Alasdair G Kergon
2012-09-01 2:13 ` [PATCH v7 9/9] block: Avoid deadlocks with bio allocation by stacking drivers Tejun Heo
2012-09-03 1:34 ` [PATCH v2] " Kent Overstreet
2012-09-04 15:00 ` [PATCH v7 9/9] " Vivek Goyal
2012-09-03 0:49 ` Dave Chinner
2012-09-03 1:17 ` Kent Overstreet
2012-09-04 13:54 ` Vivek Goyal
2012-09-04 18:26 ` Tejun Heo
2012-09-05 3:57 ` Dave Chinner
2012-09-05 4:37 ` Tejun Heo
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