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io_uring: refactor io_req_find_next

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Move the fast path from io_req_find_next() into callers. It prepares us
for further changes.

Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Link: https://lore.kernel.org/r/10bd0e564472dde0c7f8d90ae317d05356cd565a.1647897811.git.asml.silence@gmail.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
This commit is contained in:
Pavel Begunkov 2022-03-21 22:02:21 +00:00 committed by Jens Axboe
parent 60053be859
commit 7819a1f6ac
1 changed files with 7 additions and 6 deletions
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13
fs/io_uring.c
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@ -2370,8 +2370,6 @@ static inline struct io_kiocb *io_req_find_next(struct io_kiocb *req)
{
struct io_kiocb *nxt;
if (likely(!(req->flags & (REQ_F_LINK|REQ_F_HARDLINK))))
return NULL;
/*
* If LINK is set, we have dependent requests in this chain. If we
* didn't fail this request, queue the first one up, moving any other
@ -2598,10 +2596,12 @@ static void io_req_task_queue_reissue(struct io_kiocb *req)
static inline void io_queue_next(struct io_kiocb *req)
{
struct io_kiocb *nxt = io_req_find_next(req);
if (unlikely(req->flags & (REQ_F_LINK|REQ_F_HARDLINK))) {
struct io_kiocb *nxt = io_req_find_next(req);
if (nxt)
io_req_task_queue(nxt);
if (nxt)
io_req_task_queue(nxt);
}
}
static void io_free_req(struct io_kiocb *req)
@ -2695,7 +2695,8 @@ static inline struct io_kiocb *io_put_req_find_next(struct io_kiocb *req)
struct io_kiocb *nxt = NULL;
if (req_ref_put_and_test(req)) {
nxt = io_req_find_next(req);
if (unlikely(req->flags & (REQ_F_LINK|REQ_F_HARDLINK)))
nxt = io_req_find_next(req);
__io_free_req(req);
}
return nxt;