Commit 3d879647 authored May 20, 2026 by Jens Axboe

io_uring/timeout: splice timed out link in timeout handler

A previous commit deferred this to the task_work part of it, so it could
be protected by ->uring_lock. But that's actually not necessary here,
and in fact the head clearing is not enough to make that safe. For those
two reasons, just re-instate the local splicing.

Fixes: 49ae66eb ("io_uring: defer linked-timeout chain splice out of hrtimer context")
Signed-off-by: Jens Axboe <axboe@kernel.dk>

parent cf18e364

io_uring/timeout.c

+3 −1

Original line number	Diff line number	Diff line
		@@ -417,9 +417,11 @@ static enum hrtimer_restart io_link_timeout_fn(struct hrtimer *timer)
		* done in io_req_task_link_timeout(), if needed.
		*/
		if (prev) {
		if (!req_ref_inc_not_zero(prev))
		if (!req_ref_inc_not_zero(prev)) {
		io_remove_next_linked(prev);
		prev = NULL;
		}
		}
		list_del(&timeout->list);
		timeout->prev = prev;
		raw_spin_unlock_irqrestore(&ctx->timeout_lock, flags);