[PATCH 4/4] blk-mq: use blk_queue_enter/exit to protect debugfs file creation
Bart Van Assche
bvanassche at acm.org
Mon Feb 9 09:51:55 PST 2026
On 2/9/26 9:33 AM, Keith Busch wrote:
> I had to look up the original commit that introduced the WARN,
> 65d466b629847. The commit message says "Creating new debugfs entries can
> trigger fs reclaim", so that must be the path that enters back into the
> block layer request_queue.
Thanks Keith. It's probably a good idea to integrate this information in
the source code comment above the blk_queue_enter() call.
Bart.
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