From: Jens Axboe <axboe@kernel.dk>
To: linux-block@vger.kernel.org, Ming Lei <ming.lei@redhat.com>
Cc: Yang Yang <yang.yang@vivo.com>
Subject: Re: [PATCH] lib/sbitmap: define swap_lock as raw_spinlock_t
Date: Fri, 20 Sep 2024 00:21:14 -0600 [thread overview]
Message-ID: <172681327480.42824.5229268259914084398.b4-ty@kernel.dk> (raw)
In-Reply-To: <20240919021709.511329-1-ming.lei@redhat.com>
On Thu, 19 Sep 2024 10:17:09 +0800, Ming Lei wrote:
> When called from sbitmap_queue_get(), sbitmap_deferred_clear() may be run
> with preempt disabled. In RT kernel, spin_lock() can sleep, then warning
> of "BUG: sleeping function called from invalid context" can be triggered.
>
> Fix it by replacing it with raw_spin_lock.
>
>
> [...]
Applied, thanks!
[1/1] lib/sbitmap: define swap_lock as raw_spinlock_t
commit: 65f666c6203600053478ce8e34a1db269a8701c9
Best regards,
--
Jens Axboe
prev parent reply other threads:[~2024-09-20 6:21 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-09-19 2:17 [PATCH] lib/sbitmap: define swap_lock as raw_spinlock_t Ming Lei
2024-09-19 9:04 ` YangYang
2024-09-20 6:21 ` Jens Axboe [this message]
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