io_uring-6.0-2022-09-23

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Merge tag 'io_uring-6.0-2022-09-23' of git://git.kernel.dk/linux

Pull io_uring fix from Jens Axboe:
 "Just a single fix for an issue with un-reaped IOPOLL requests on ring
  exit"

* tag 'io_uring-6.0-2022-09-23' of git://git.kernel.dk/linux:
  io_uring: ensure that cached task references are always put on exit

io_uring/io_uring.c

@@ -2648,6 +2648,9 @@ static __cold void io_ring_ctx_wait_and_kill(struct io_ring_ctx *ctx)
 		io_kill_timeouts(ctx, NULL, true);
 		/* if we failed setting up the ctx, we might not have any rings */
 		io_iopoll_try_reap_events(ctx);
+		/* drop cached put refs after potentially doing completions */
+		if (current->io_uring)
+			io_uring_drop_tctx_refs(current);
 	}
 
 	INIT_WORK(&ctx->exit_work, io_ring_exit_work);