From dc314886cb3d0e4ab2858003e8de2917f8a3ccbd Mon Sep 17 00:00:00 2001 From: Pavel Begunkov Date: Wed, 9 Aug 2023 16:20:21 +0100 Subject: [PATCH] io_uring: break iopolling on signal Don't keep spinning iopoll with a signal set. It'll eventually return back, e.g. by virtue of need_resched(), but it's not a nice user experience. Cc: stable@vger.kernel.org Fixes: def596e9557c9 ("io_uring: support for IO polling") Signed-off-by: Pavel Begunkov Link: https://lore.kernel.org/r/eeba551e82cad12af30c3220125eb6cb244cc94c.1691594339.git.asml.silence@gmail.com Signed-off-by: Jens Axboe --- io_uring/io_uring.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/io_uring/io_uring.c b/io_uring/io_uring.c index d088890..ad4ffd3 100644 --- a/io_uring/io_uring.c +++ b/io_uring/io_uring.c @@ -1673,6 +1673,9 @@ static int io_iopoll_check(struct io_ring_ctx *ctx, long min) break; nr_events += ret; ret = 0; + + if (task_sigpending(current)) + return -EINTR; } while (nr_events < min && !need_resched()); return ret; -- 2.7.4