Re: [PATCH 13/14] blkcg: change blkg reference counting to use percpu_ref

[PATCH v5 00/14] block: always associate blkg and refcount cleanup · Dennis Zhou <dennis@kernel.org> · 2018-12-04
[PATCH 01/14] blkcg: fix ref count issue with bio_blkcg() using task_css · Dennis Zhou <dennis@kernel.org> · 2018-12-04
[PATCH 03/14] blkcg: convert blkg_lookup_create() to find closest blkg · Dennis Zhou <dennis@kernel.org> · 2018-12-04
[PATCH 05/14] dm: set the static flush bio device on demand · Dennis Zhou <dennis@kernel.org> · 2018-12-04
Re: [PATCH 05/14] dm: set the static flush bio device on demand · Mike Snitzer <hidden> · 2018-12-04
Re: [PATCH 05/14] dm: set the static flush bio device on demand · Dennis Zhou <dennis@kernel.org> · 2018-12-04
[PATCH 06/14] blkcg: associate blkg when associating a device · Dennis Zhou <dennis@kernel.org> · 2018-12-04
Re: [PATCH 06/14] blkcg: associate blkg when associating a device · Josef Bacik <josef@toxicpanda.com> · 2018-12-04
[PATCH 13/14] blkcg: change blkg reference counting to use percpu_ref · Dennis Zhou <dennis@kernel.org> · 2018-12-04
Re: [PATCH 13/14] blkcg: change blkg reference counting to use percpu_ref · Josef Bacik <josef@toxicpanda.com> · 2018-12-04
[PATCH 14/14] blkcg: rename blkg_try_get() to blkg_tryget() · Dennis Zhou <dennis@kernel.org> · 2018-12-04
[PATCH 10/14] blkcg: remove bio->bi_css and instead use bio->bi_blkg · Dennis Zhou <dennis@kernel.org> · 2018-12-04
[PATCH 08/14] blkcg: associate a blkg for pages being evicted by swap · Dennis Zhou <dennis@kernel.org> · 2018-12-04
[PATCH 12/14] blkcg: remove bio_disassociate_task() · Dennis Zhou <dennis@kernel.org> · 2018-12-04
Re: [PATCH 12/14] blkcg: remove bio_disassociate_task() · Josef Bacik <josef@toxicpanda.com> · 2018-12-04
[PATCH 11/14] blkcg: remove additional reference to the css · Dennis Zhou <dennis@kernel.org> · 2018-12-04
Re: [PATCH 11/14] blkcg: remove additional reference to the css · Josef Bacik <josef@toxicpanda.com> · 2018-12-04
[PATCH 09/14] blkcg: associate writeback bios with a blkg · Dennis Zhou <dennis@kernel.org> · 2018-12-04
[PATCH 07/14] blkcg: consolidate bio_issue_init() to be a part of core · Dennis Zhou <dennis@kernel.org> · 2018-12-04
Re: [PATCH 07/14] blkcg: consolidate bio_issue_init() to be a part of core · Josef Bacik <josef@toxicpanda.com> · 2018-12-04
[PATCH 04/14] blkcg: introduce common blkg association logic · Dennis Zhou <dennis@kernel.org> · 2018-12-04
[PATCH 02/14] blkcg: update blkg_lookup_create() to do locking · Dennis Zhou <dennis@kernel.org> · 2018-12-04

From: Josef Bacik <josef@toxicpanda.com>
Date: 2018-12-04 19:54:43
Also in: linux-block, lkml

On Tue, Dec 04, 2018 at 01:35:59PM -0500, Dennis Zhou wrote:

Every bio is now associated with a blkg putting blkg_get, blkg_try_get,
and blkg_put on the hot path. Switch over the refcnt in blkg to use
percpu_ref.

Signed-off-by: Dennis Zhou <dennis@kernel.org>
Acked-by: Tejun Heo <tj@kernel.org>

Reviewed-by: Josef Bacik <josef@toxicpanda.com>

Thanks,

Josef

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