Hello Christoph Hellwig,
Commit 1e1a9cecfab3 ("block: force noio scope in
blk_mq_freeze_queue") from Jan 31, 2025 (linux-next), leads to the
following Smatch static checker warning:
include/linux/blk-mq.h:910 blk_mq_freeze_queue()
warn: sleeping in atomic context
include/linux/blk-mq.h
905 static inline unsigned int __must_check
906 blk_mq_freeze_queue(struct request_queue *q)
907 {
908 unsigned int memflags = memalloc_noio_save();
909
--> 910 blk_mq_freeze_queue_nomemsave(q);
911 return memflags;
912 }
The call tree is:
rexmit_timer() <- disables preempt with spin_lock_irqsave(&d->lock, flags);
-> aoedev_downdev()
-> blk_mq_freeze_queue()
regards,
dan carpenter
