Merge tag 'io_uring-5.16-2021-12-03' of git://git.kernel.dk/linux-block

Pull io_uring fix from Jens Axboe:
 "Just a single fix preventing repeated retries of task_work based io-wq
  thread creation, fixing a regression from when io-wq was made more (a
  bit too much) resilient against signals"

* tag 'io_uring-5.16-2021-12-03' of git://git.kernel.dk/linux-block:
  io-wq: don't retry task_work creation failure on fatal conditions

Author: torvalds

fs/io-wq.c

@@ -714,6 +714,13 @@ static bool io_wq_work_match_all(struct io_wq_work *work, void *data)
 
 static inline bool io_should_retry_thread(long err)
 {
+	/*
+	 * Prevent perpetual task_work retry, if the task (or its group) is
+	 * exiting.
+	 */
+	if (fatal_signal_pending(current))
+		return false;
+
 	switch (err) {
 	case -EAGAIN:
 	case -ERESTARTSYS: