From: Christoph Hellwig <hch@lst.de>
To: Tejun Heo <tj@kernel.org>
Cc: Christoph Hellwig <hch@lst.de>, Jens Axboe <axboe@kernel.dk>,
Josef Bacik <josef@toxicpanda.com>,
linux-block@vger.kernel.org, cgroups@vger.kernel.org
Subject: Re: [PATCH 03/19] blk-cgroup: improve error unwinding in blkg_alloc
Date: Fri, 3 Feb 2023 09:04:17 +0100 [thread overview]
Message-ID: <20230203080417.GA28639@lst.de> (raw)
In-Reply-To: <Y9xQ33MtLhoxtPNv@slm.duckdns.org>
On Thu, Feb 02, 2023 at 02:10:07PM -1000, Tejun Heo wrote:
> This is fine but is this necessarily better? If it's needed for future
> changes, maybe that should be mentioned?
It avoids dealing with partially constructed blkgs outside of blkg_alloc,
which is mostly useful for code clarity. It also micro-optimized the
free fast path a bit by avoiding two pointless (but mostly confusing)
branches.
I've updated the commit log a bit.
next prev parent reply other threads:[~2023-02-03 8:06 UTC|newest]
Thread overview: 32+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-02-01 13:41 switch blk-cgroup to work on gendisk v3 Christoph Hellwig
2023-02-01 13:41 ` [PATCH 01/19] block: don't call blk_throtl_stat_add for non-READ/WRITE commands Christoph Hellwig
2023-02-01 13:41 ` [PATCH 02/19] blk-cgroup: delay blk-cgroup initialization until add_disk Christoph Hellwig
2023-02-03 0:08 ` Tejun Heo
2023-02-07 14:40 ` Ming Lei
2023-02-08 6:35 ` Christoph Hellwig
2023-02-08 7:32 ` Ming Lei
2023-02-01 13:41 ` [PATCH 03/19] blk-cgroup: improve error unwinding in blkg_alloc Christoph Hellwig
2023-02-03 0:10 ` Tejun Heo
2023-02-03 8:04 ` Christoph Hellwig [this message]
2023-02-01 13:41 ` [PATCH 04/19] blk-cgroup: simplify blkg freeing from initialization failure paths Christoph Hellwig
2023-02-03 0:12 ` Tejun Heo
2023-02-01 13:41 ` [PATCH 05/19] blk-cgroup: remove the !bdi->dev check in blkg_dev_name Christoph Hellwig
2023-02-01 13:41 ` [PATCH 06/19] blk-cgroup: pin the gendisk in struct blkcg_gq Christoph Hellwig
2023-02-03 0:15 ` Tejun Heo
2023-02-01 13:41 ` [PATCH 07/19] blk-cgroup: store a gendisk to throttle in struct task_struct Christoph Hellwig
2023-02-03 0:17 ` Tejun Heo
2023-02-03 8:06 ` Christoph Hellwig
2023-02-01 13:41 ` [PATCH 08/19] blk-wbt: pass a gendisk to wbt_{enable,disable}_default Christoph Hellwig
2023-02-01 13:41 ` [PATCH 09/19] blk-wbt: pass a gendisk to wbt_init Christoph Hellwig
2023-02-01 13:41 ` [PATCH 10/19] blk-wbt: move private information from blk-wbt.h to blk-wbt.c Christoph Hellwig
2023-02-01 13:41 ` [PATCH 11/19] blk-wbt: open code wbt_queue_depth_changed in wbt_init Christoph Hellwig
2023-02-01 13:41 ` [PATCH 12/19] blk-rq-qos: move rq_qos_add and rq_qos_del out of line Christoph Hellwig
2023-02-01 13:41 ` [PATCH 13/19] blk-rq-qos: make rq_qos_add and rq_qos_del more useful Christoph Hellwig
2023-02-01 13:41 ` [PATCH 14/19] blk-rq-qos: constify rq_qos_ops Christoph Hellwig
2023-02-01 13:41 ` [PATCH 15/19] blk-rq-qos: store a gendisk instead of request_queue in struct rq_qos Christoph Hellwig
2023-02-01 13:41 ` [PATCH 16/19] blk-cgroup: pass a gendisk to blkcg_{de,}activate_policy Christoph Hellwig
2023-02-01 13:41 ` [PATCH 17/19] blk-cgroup: pass a gendisk to pd_alloc_fn Christoph Hellwig
2023-02-01 13:41 ` [PATCH 18/19] blk-cgroup: pass a gendisk to blkg_lookup Christoph Hellwig
2023-02-01 13:41 ` [PATCH 19/19] blk-cgroup: move the cgroup information to struct gendisk Christoph Hellwig
2023-02-03 0:24 ` Tejun Heo
-- strict thread matches above, loose matches on Subject: below --
2023-02-03 15:03 switch blk-cgroup to work on gendisk v4 Christoph Hellwig
2023-02-03 15:03 ` [PATCH 03/19] blk-cgroup: improve error unwinding in blkg_alloc Christoph Hellwig
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