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io_uring: keep queue_sqe()'s fail path separately 

A preparation path, extracts error path into a separate block. It looks
saner then calling req_set_fail_links() after io_put_req_find_next(), even
though it have been working well.

Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
This commit is contained in:
Pavel Begunkov 2020-07-03 22:15:07 +03:00 committed by Jens Axboe
parent 6df1db6b54
commit 652532ad45
1 changed files with 11 additions and 12 deletions
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23
fs/io_uring.c
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@ -5937,22 +5937,21 @@ punt:
goto exit; goto exit;
} }
if (unlikely(ret)) {
err: err:
/* un-prep timeout, so it'll be killed as any other linked */
req->flags &= ~REQ_F_LINK_TIMEOUT;
req_set_fail_links(req);
io_put_req(req);
io_req_complete(req, ret);
goto exit;
}
/* drop submission reference */ /* drop submission reference */
nxt = io_put_req_find_next(req); nxt = io_put_req_find_next(req);
if (linked_timeout)
io_queue_linked_timeout(linked_timeout);
if (linked_timeout) {
if (!ret)
io_queue_linked_timeout(linked_timeout);
else
io_put_req(linked_timeout);
}
/* and drop final reference, if we failed */
if (ret) {
req_set_fail_links(req);
io_req_complete(req, ret);
}
if (nxt) { if (nxt) {
req = nxt; req = nxt;