tree e62fccfad262261f6838661512b5bf649d105307
parent b4fea6b86d6555ea22ebeff16b7922f5a0c7852a
author Pavel Begunkov <asml.silence@gmail.com> 1612740737 +0000
committer Jens Axboe <axboe@kernel.dk> 1612797957 -0700

src/queue: don't loop when don't enter

_io_uring_get_cqe() can live-lock in some cases, always return if we're
not going to do __sys_io_uring_enter().

Reported-by: Victor Stewart <v@nametag.social>
Suggested-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>