Merge tag 'io_uring-6.19-20251211' of git://git.kernel.org/pub/scm/linux/kernel/git/axboe/linux

Pull io_uring fix from Jens Axboe:
 "Single fix for io_uring headed to stable, fixing an issue introduced
  with the min_wait support earlier this year, where SQPOLL didn't get
  correctly woken if an event arrived once the event waiting has
  finished the min_wait portion.

  As we already have regression tests for this added and people
  reporting new failures there, let's get this one flushed out
  so it can bubble back down to stable as well"

* tag 'io_uring-6.19-20251211' of git://git.kernel.org/pub/scm/linux/kernel/git/axboe/linux:
  io_uring: fix min_wait wakeups for SQPOLL

Author: torvalds

io_uring/io_uring.c

@@ -2536,6 +2536,9 @@ static enum hrtimer_restart io_cqring_min_timer_wakeup(struct hrtimer *timer)
 			goto out_wake;
 	}
 
+	/* any generated CQE posted past this time should wake us up */
+	iowq->cq_tail = iowq->cq_min_tail;
+
 	hrtimer_update_function(&iowq->t, io_cqring_timer_wakeup);
 	hrtimer_set_expires(timer, iowq->timeout);
 	return HRTIMER_RESTART;