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| author | Ming Lei <ming.lei@redhat.com> | 2024-04-05 16:50:02 +0100 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2024-04-15 08:10:26 -0600 |
| commit | f39130004d3a9155d113284c19b5a7c2eccb43fe (patch) | |
| tree | b2c167d918aed27c73ab2ac2ce1b2163d7c6fec0 /io_uring/refs.h | |
| parent | 285207f67c9bcad1d9168993f175d6d88ce310f1 (diff) | |
| download | linux-f39130004d3a9155d113284c19b5a7c2eccb43fe.tar.gz linux-f39130004d3a9155d113284c19b5a7c2eccb43fe.tar.bz2 linux-f39130004d3a9155d113284c19b5a7c2eccb43fe.zip | |
io_uring: kill dead code in io_req_complete_post
Since commit 8f6c829491fe ("io_uring: remove struct io_tw_state::locked"),
io_req_complete_post() is only called from io-wq submit work, where the
request reference is guaranteed to be grabbed and won't drop to zero
in io_req_complete_post().
Kill the dead code, meantime add req_ref_put() to put the reference.
Cc: Pavel Begunkov <asml.silence@gmail.com>
Signed-off-by: Ming Lei <ming.lei@redhat.com>
Reviewed-by: Pavel Begunkov <asml.silence@gmail.com>
Signed-by: Pavel Begunkov <asml.silence@gmail.com>
Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Link: https://lore.kernel.org/r/1d8297e2046553153e763a52574f0e0f4d512f86.1712331455.git.asml.silence@gmail.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'io_uring/refs.h')
| -rw-r--r-- | io_uring/refs.h | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/io_uring/refs.h b/io_uring/refs.h index 1336de3f2a30..63982ead9f7d 100644 --- a/io_uring/refs.h +++ b/io_uring/refs.h @@ -33,6 +33,13 @@ static inline void req_ref_get(struct io_kiocb *req) atomic_inc(&req->refs); } +static inline void req_ref_put(struct io_kiocb *req) +{ + WARN_ON_ONCE(!(req->flags & REQ_F_REFCOUNT)); + WARN_ON_ONCE(req_ref_zero_or_close_to_overflow(req)); + atomic_dec(&req->refs); +} + static inline void __io_req_set_refcount(struct io_kiocb *req, int nr) { if (!(req->flags & REQ_F_REFCOUNT)) { |