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| author | Pavel Begunkov <asml.silence@gmail.com> | 2021-02-12 21:41:16 +0300 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2021-02-12 21:49:49 +0300 |
| commit | cdbff98223330cdb6c57ead1533ce066dddd61b7 (patch) | |
| tree | 4b5a1e81d4c10cb139c9c452dc802b0086907997 /fs/io_uring.c | |
| parent | dc0eced5d92052a84d58df03a3bc6382f64fecfa (diff) | |
| download | linux-cdbff98223330cdb6c57ead1533ce066dddd61b7.tar.xz | |
io_uring: clean io_req_find_next() fast check
Indirectly io_req_find_next() is called for every request, optimise the
check by testing flags as it was long before -- __io_req_find_next()
tolerates false-positives well (i.e. link==NULL), and those should be
really rare.
Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'fs/io_uring.c')
| -rw-r--r-- | fs/io_uring.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/fs/io_uring.c b/fs/io_uring.c index 66bbb0dc50af..776531f6e18b 100644 --- a/fs/io_uring.c +++ b/fs/io_uring.c @@ -2172,7 +2172,7 @@ static struct io_kiocb *__io_req_find_next(struct io_kiocb *req) static inline struct io_kiocb *io_req_find_next(struct io_kiocb *req) { - if (likely(!(req->link) && !(req->flags & REQ_F_LINK_TIMEOUT))) + if (likely(!(req->flags & (REQ_F_LINK|REQ_F_HARDLINK)))) return NULL; return __io_req_find_next(req); } |