From: Christoph Hellwig <hch@lst.de>
To: Yu Kuai <yukuai1@huaweicloud.com>
Cc: "Christoph Hellwig" <hch@lst.de>, "Jens Axboe" <axboe@kernel.dk>,
"Mike Snitzer" <snitzer@kernel.org>,
"Mikulas Patocka" <mpatocka@redhat.com>,
"Song Liu" <song@kernel.org>,
"Philipp Reisner" <philipp.reisner@linbit.com>,
"Lars Ellenberg" <lars.ellenberg@linbit.com>,
"Christoph Böhmwalder" <christoph.boehmwalder@linbit.com>,
drbd-dev@lists.linbit.com, dm-devel@lists.linux.dev,
linux-block@vger.kernel.org, linux-raid@vger.kernel.org,
"yukuai (C)" <yukuai3@huawei.com>
Subject: Re: [PATCH 04/16] md: add queue limit helpers
Date: Tue, 27 Feb 2024 15:36:18 +0100 [thread overview]
Message-ID: <20240227143618.GA13570@lst.de> (raw)
In-Reply-To: <6eb1741e-f336-bfb1-6549-21374ee667fc@huaweicloud.com>
On Mon, Feb 26, 2024 at 07:38:17PM +0800, Yu Kuai wrote:
> Any reason to use blk_mq_freeze/unfreeze_queue ? I don't think this is
> meaningful for raid, this only wait for IO submission, not IO done.
>
> raid should already handle concurrent IO with reshape, so I think this
> can just be removed.
We can't just change limits under the driver if I/Os are being sumitted.
That is one of the points of the whole queue limits exercises.
next prev parent reply other threads:[~2024-02-27 14:36 UTC|newest]
Thread overview: 24+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-02-26 10:29 atomic queue limit updates for stackable devices v2 Christoph Hellwig
2024-02-26 10:29 ` [PATCH 01/16] block: add a queue_limits_set helper Christoph Hellwig
2024-02-26 10:29 ` [PATCH 02/16] block: add a queue_limits_stack_bdev helper Christoph Hellwig
2024-02-26 10:29 ` [PATCH 03/16] dm: use queue_limits_set Christoph Hellwig
2024-02-26 10:29 ` [PATCH 04/16] md: add queue limit helpers Christoph Hellwig
2024-02-26 11:38 ` Yu Kuai
2024-02-27 14:36 ` Christoph Hellwig [this message]
2024-02-28 1:38 ` Yu Kuai
2024-02-26 10:29 ` [PATCH 05/16] md/raid0: use the atomic queue limit update APIs Christoph Hellwig
2024-02-26 10:29 ` [PATCH 06/16] md/raid1: " Christoph Hellwig
2024-02-26 11:29 ` Yu Kuai
2024-02-27 15:26 ` Christoph Hellwig
2024-02-27 21:54 ` Song Liu
2024-02-28 1:42 ` Yu Kuai
2024-02-26 10:29 ` [PATCH 07/16] md/raid10: " Christoph Hellwig
2024-02-26 10:29 ` [PATCH 08/16] md/raid5: " Christoph Hellwig
2024-02-26 10:29 ` [PATCH 09/16] block: remove disk_stack_limits Christoph Hellwig
2024-02-26 10:29 ` [PATCH 10/16] drbd: pass the max_hw_sectors limit to blk_alloc_disk Christoph Hellwig
2024-02-26 10:29 ` [PATCH 11/16] drbd: refactor drbd_reconsider_queue_parameters Christoph Hellwig
2024-02-26 10:30 ` [PATCH 12/16] drbd: refactor the backing dev max_segments calculation Christoph Hellwig
2024-02-26 10:30 ` [PATCH 13/16] drbd: merge drbd_setup_queue_param into drbd_reconsider_queue_parameters Christoph Hellwig
2024-02-26 10:30 ` [PATCH 14/16] drbd: don't set max_write_zeroes_sectors in decide_on_discard_support Christoph Hellwig
2024-02-26 10:30 ` [PATCH 15/16] drbd: split out a drbd_discard_supported helper Christoph Hellwig
2024-02-26 10:30 ` [PATCH 16/16] drbd: atomically update queue limits in drbd_reconsider_queue_parameters Christoph Hellwig
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20240227143618.GA13570@lst.de \
--to=hch@lst.de \
--cc=axboe@kernel.dk \
--cc=christoph.boehmwalder@linbit.com \
--cc=dm-devel@lists.linux.dev \
--cc=drbd-dev@lists.linbit.com \
--cc=lars.ellenberg@linbit.com \
--cc=linux-block@vger.kernel.org \
--cc=linux-raid@vger.kernel.org \
--cc=mpatocka@redhat.com \
--cc=philipp.reisner@linbit.com \
--cc=snitzer@kernel.org \
--cc=song@kernel.org \
--cc=yukuai1@huaweicloud.com \
--cc=yukuai3@huawei.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).