From: Jens Axboe <axboe@kernel.dk>
To: Christoph Hellwig <hch@lst.de>
Cc: Ming Lei <ming.lei@redhat.com>, linux-block@vger.kernel.org
Subject: Re: ensure q_usage_counter is held over bio splits
Date: Thu, 11 Jan 2024 09:03:23 -0700 [thread overview]
Message-ID: <170498900326.1937794.17919960796467791893.b4-ty@kernel.dk> (raw)
In-Reply-To: <20240111135705.2155518-1-hch@lst.de>
On Thu, 11 Jan 2024 14:57:03 +0100, Christoph Hellwig wrote:
> current blk_submit_bio can call into the bio splitting code without
> q_usage_counter held, which can lead to inconsistent limits beeing
> applied for drivers that change the limits at runtime.
>
> The first patch in the series is a small comment and naming cleanup,
> and the second one ensures we always hold q_usage_counter before
> even entering blk_mq_submit_bio.
>
> [...]
Applied, thanks!
[1/2] blk-mq: rename blk_mq_can_use_cached_rq
commit: edc2e480a9f242c91fc7bb64d6de77af75bd59b5
[2/2] blk-mq: ensure a q_usage_counter reference is held when splitting bios
commit: 744bdfb30b119f011d800e865623f3eb0a28c949
Best regards,
--
Jens Axboe
next prev parent reply other threads:[~2024-01-11 16:03 UTC|newest]
Thread overview: 33+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-01-11 13:57 ensure q_usage_counter is held over bio splits Christoph Hellwig
2024-01-11 13:57 ` [PATCH 1/2] blk-mq: rename blk_mq_can_use_cached_rq Christoph Hellwig
2024-01-11 13:57 ` [PATCH 2/2] blk-mq: ensure a q_usage_counter reference is held when splitting bios Christoph Hellwig
2024-01-11 16:12 ` Jens Axboe
2024-01-11 16:14 ` Christoph Hellwig
2024-01-11 16:17 ` Jens Axboe
2024-01-11 16:18 ` Christoph Hellwig
2024-01-11 17:10 ` Christoph Hellwig
2024-01-11 17:18 ` Jens Axboe
2024-01-11 17:24 ` Christoph Hellwig
2024-01-11 20:06 ` Jens Axboe
2024-01-12 5:44 ` Christoph Hellwig
2024-01-12 14:22 ` Jens Axboe
2024-01-12 14:25 ` Christoph Hellwig
2024-01-12 16:10 ` Jens Axboe
2024-01-15 11:20 ` Ulf Hansson
2024-01-22 7:34 ` mmc vs highmem, was: " Christoph Hellwig
2024-01-22 9:26 ` Arnd Bergmann
2024-01-22 13:39 ` Christoph Hellwig
2024-01-22 14:57 ` Arnd Bergmann
2024-01-23 9:11 ` Christoph Hellwig
2024-01-24 11:59 ` Arnd Bergmann
2024-01-24 12:33 ` Linus Walleij
2024-01-24 12:54 ` Arnd Bergmann
2024-01-24 13:16 ` Linus Walleij
2024-01-24 14:14 ` Arnd Bergmann
2024-01-24 12:45 ` Arnd Bergmann
2024-01-24 13:49 ` Linus Walleij
2024-01-24 16:35 ` Arnd Bergmann
2024-01-11 22:22 ` Ming Lei
2024-01-12 5:46 ` Christoph Hellwig
2024-01-11 16:03 ` Jens Axboe [this message]
2024-01-14 14:38 ` (subset) ensure q_usage_counter is held over bio splits Jens Axboe
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