On Tue, 26 Nov 2024 19:47:05 +0900, Damien Le Moal wrote:
> The function blk_revalidate_disk_zones() calls the function
> disk_update_zone_resources() after freezing the device queue. In turn,
> disk_update_zone_resources() calls queue_limits_start_update() which
> takes a queue limits mutex lock, resulting in the ordering:
> q->q_usage_counter check -> q->limits_lock. However, the usual ordering
> is to always take a queue limit lock before freezing the queue to commit
> the limits updates, e.g., the code pattern:
>
> [...]
Applied, thanks!
[1/1] block: Prevent potential deadlock in blk_revalidate_disk_zones()
commit: 0b83c86b444ab467134b0e618f45ad2216a4973c
Best regards,
--
Jens Axboe
