From: Pavel Begunkov asml.silence@gmail.com
[ upstream commmit 9d2ad2947a53abf5e5e6527a9eeed50a3a4cbc72 ]
Leaving ip.error set when a request was punted to task_work execution is problematic, don't forget to clear it.
Fixes: aa43477b04025 ("io_uring: poll rework") Signed-off-by: Pavel Begunkov asml.silence@gmail.com Link: https://lore.kernel.org/r/a6c84ef4182c6962380aebe11b35bdcb25b0ccfb.165585224... Signed-off-by: Jens Axboe axboe@kernel.dk [pavel: backport] Signed-off-by: Pavel Begunkov asml.silence@gmail.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- fs/io_uring.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-)
--- a/fs/io_uring.c +++ b/fs/io_uring.c @@ -5627,8 +5627,10 @@ static int __io_arm_poll_handler(struct
if (mask) { /* can't multishot if failed, just queue the event we've got */ - if (unlikely(ipt->error || !ipt->nr_entries)) + if (unlikely(ipt->error || !ipt->nr_entries)) { poll->events |= EPOLLONESHOT; + ipt->error = 0; + } __io_poll_execute(req, mask); return 0; }