From: Tejun Heo <tj@kernel.org>
To: axboe@kernel.dk, josef@toxicpanda.com, hch@lst.de
Cc: linux-block@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCHSET block/for-next] blkcg: Improve blkg config helpers and make iolatency init lazy
Date: Thu, 5 Jan 2023 08:56:23 -1000 [thread overview]
Message-ID: <Y7cdV0vlExjtkF6C@slm.duckdns.org> (raw)
In-Reply-To: <20230105002007.157497-1-tj@kernel.org>
On Wed, Jan 04, 2023 at 02:20:03PM -1000, Tejun Heo wrote:
> Hello,
>
> * Improve blkg config helpers so that they can be used consistently for all
> the existing use cases. This also allows keeps using the same bdev open
> instance across lazy init of rq_qos policies.
>
> * Update iolatency so that it initializes lazily when a latency target is
> set for the first time. This avoids registering the rq_qos policy when
> iolatency is not used which removes unnecessary calls into iolat from IO
> hot paths.
I forgot to update bfq. Will post v2 soon.
Thanks.
--
tejun
prev parent reply other threads:[~2023-01-05 18:56 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-01-05 0:20 [PATCHSET block/for-next] blkcg: Improve blkg config helpers and make iolatency init lazy Tejun Heo
2023-01-05 0:20 ` [PATCH 1/4] blkcg: Drop unnecessary RCU read [un]locks from blkg_conf_prep/finish() Tejun Heo
2023-01-05 0:20 ` [PATCH 2/4] blkcg: Restructure blkg_conf_prep() and friends Tejun Heo
2023-01-05 0:20 ` [PATCH 3/4] blk-iolatency: s/blkcg_rq_qos/iolat_rq_qos/ Tejun Heo
2023-01-05 0:20 ` [PATCH 4/4] blk-iolatency: Make initialization lazy Tejun Heo
2023-01-05 18:56 ` Tejun Heo [this message]
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