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(parent: f499254) | patch
io_uring: use user visible tail in io_uring_poll()
authorPavel Begunkov <asml.silence@gmail.com>
Mon, 23 Jan 2023 14:37:13 +0000 (14:37 +0000)
committerJens Axboe <axboe@kernel.dk>
Sun, 29 Jan 2023 22:17:41 +0000 (15:17 -0700)
commitc10bb64684813a326174c3eebcafb3ee5af52ca3
treecbddc7fbefd26342f9ec9ba77a1c8c9ba3c8a03etree | snapshot
parentf499254474a83bf60191c86de82c1fec1d8eb9f9commit | diff
io_uring: use user visible tail in io_uring_poll()

We return POLLIN from io_uring_poll() depending on whether there are
CQEs for the userspace, and so we should use the user visible tail
pointer instead of a transient cached value.

Cc: stable@vger.kernel.org
Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Link: https://lore.kernel.org/r/228ffcbf30ba98856f66ffdb9a6a60ead1dd96c0.1674484266.git.asml.silence@gmail.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
io_uring/io_uring.c diff | blob | blame | history
Linux 6.x block layer and io_uring tree(s)