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.