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io_uring: better ref handling in poll_remove_one 

Instead of io_put_req() to drop not a final ref, use req_ref_put(),
which is slimmer and will also check the invariant.

Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Link: https://lore.kernel.org/r/85b5774ce13ae55cc2e705abdc8cbafe1212f1bd.1617287883.git.asml.silence@gmail.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
This commit is contained in:
Pavel Begunkov 2021-04-01 15:43:51 +01:00 committed by Jens Axboe
parent 89b5066ea1
commit 7394161cb8
1 changed files with 1 additions and 1 deletions
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2
fs/io_uring.c
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@ -5244,7 +5244,7 @@ static bool io_poll_remove_waitqs(struct io_kiocb *req)
/* non-poll requests have submit ref still */
do_complete = __io_poll_remove_one(req, &apoll->poll, true);
if (do_complete) {
io_put_req(req);
req_ref_put(req);
kfree(apoll->double_poll);
kfree(apoll);
}