From: Christoph Hellwig <hch@lst.de>
To: Ming Lei <ming.lei@redhat.com>
Cc: Nilay Shroff <nilay@linux.ibm.com>,
Christoph Hellwig <hch@lst.de>, Jens Axboe <axboe@kernel.dk>,
Damien Le Moal <dlemoal@kernel.org>,
linux-block@vger.kernel.org, linux-nvme@lists.infradead.org,
nbd@other.debian.org, linux-scsi@vger.kernel.org,
usb-storage@lists.one-eyed-alien.net
Subject: Re: [PATCH 4/8] block: add a store_limit operations for sysfs entries
Date: Tue, 7 Jan 2025 14:49:13 +0100 [thread overview]
Message-ID: <20250107134913.GA22046@lst.de> (raw)
In-Reply-To: <Z30AsQq89_lcstNl@fedora>
On Tue, Jan 07, 2025 at 06:25:20PM +0800, Ming Lei wrote:
> __blk_mq_update_nr_hw_queues() freezes queue before acquiring ->syfs_lock too.
>
> So yes, it is a mess wrt. order between ->sysfs_lock and freezing queue.
Let's sort out the current freeze vs limits lock issue first. Next step
is to kill sysfs_lock in it's current form.
next prev parent reply other threads:[~2025-01-07 13:49 UTC|newest]
Thread overview: 43+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-01-07 6:30 fix queue freeze and limit locking order Christoph Hellwig
2025-01-07 6:30 ` [PATCH 1/8] block: fix docs for freezing of queue limits updates Christoph Hellwig
2025-01-07 7:01 ` Nilay Shroff
2025-01-07 18:05 ` Nilay Shroff
2025-01-07 10:03 ` Damien Le Moal
2025-01-09 11:19 ` John Garry
2025-01-09 11:24 ` Nilay Shroff
2025-01-09 11:26 ` John Garry
2025-01-07 6:30 ` [PATCH 2/8] block: add a queue_limits_commit_update_frozen helper Christoph Hellwig
2025-01-07 10:05 ` Damien Le Moal
2025-01-07 17:58 ` Nilay Shroff
2025-01-07 6:30 ` [PATCH 3/8] block: don't update BLK_FEAT_POLL in __blk_mq_update_nr_hw_queues Christoph Hellwig
2025-01-07 6:57 ` Nilay Shroff
2025-01-07 8:21 ` Christoph Hellwig
2025-01-07 9:23 ` Nilay Shroff
2025-01-07 13:51 ` Christoph Hellwig
2025-01-07 17:55 ` Nilay Shroff
2025-01-07 6:30 ` [PATCH 4/8] block: add a store_limit operations for sysfs entries Christoph Hellwig
2025-01-07 7:25 ` Ming Lei
2025-01-07 7:51 ` Nilay Shroff
2025-01-07 8:26 ` Christoph Hellwig
2025-01-07 10:25 ` Ming Lei
2025-01-07 13:49 ` Christoph Hellwig [this message]
2025-01-07 8:23 ` Christoph Hellwig
2025-01-07 10:05 ` Damien Le Moal
2025-01-07 17:58 ` Nilay Shroff
2025-01-07 6:30 ` [PATCH 5/8] block: fix queue freeze vs limits lock order in sysfs store methods Christoph Hellwig
2025-01-07 17:59 ` Nilay Shroff
2025-01-07 6:30 ` [PATCH 6/8] nvme: fix queue freeze vs limits lock order Christoph Hellwig
2025-01-07 6:58 ` Nilay Shroff
2025-01-07 8:22 ` Christoph Hellwig
2025-01-07 8:45 ` Nilay Shroff
2025-01-07 8:58 ` Christoph Hellwig
2025-01-07 9:29 ` Nilay Shroff
2025-01-07 9:58 ` Damien Le Moal
2025-01-07 18:00 ` Nilay Shroff
2025-01-07 6:30 ` [PATCH 7/8] nbd: " Christoph Hellwig
2025-01-07 10:00 ` Damien Le Moal
2025-01-07 18:01 ` Nilay Shroff
2025-01-07 6:30 ` [PATCH 8/8] usb-storage:fix " Christoph Hellwig
2025-01-07 10:00 ` Damien Le Moal
2025-01-07 18:01 ` Nilay Shroff
2025-01-08 2:21 ` fix queue freeze and limit locking order Ming Lei
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=20250107134913.GA22046@lst.de \
--to=hch@lst.de \
--cc=axboe@kernel.dk \
--cc=dlemoal@kernel.org \
--cc=linux-block@vger.kernel.org \
--cc=linux-nvme@lists.infradead.org \
--cc=linux-scsi@vger.kernel.org \
--cc=ming.lei@redhat.com \
--cc=nbd@other.debian.org \
--cc=nilay@linux.ibm.com \
--cc=usb-storage@lists.one-eyed-alien.net \
/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 an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.