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| author | Pavel Begunkov <asml.silence@gmail.com> | 2022-10-06 02:06:10 +0100 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2022-10-12 16:30:56 -0600 |
| commit | fc86f9d3bb4904117eea70347d323fde34a47c79 (patch) | |
| tree | 5c4b611b28fb3ad7f5412edcd3b057540768d1c5 /io_uring/poll.h | |
| parent | 3fb1bd68817288729179444caf1fd5c5c4d2d65d (diff) | |
io_uring: remove redundant memory barrier in io_req_local_work_add
io_cqring_wake() needs a barrier for the waitqueue_active() check.
However, in the case of io_req_local_work_add(), we call llist_add()
first, which implies an atomic. Hence we can replace smb_mb() with
smp_mb__after_atomic().
Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Link: https://lore.kernel.org/r/43983bc8bc507172adda7a0f00cab1aff09fd238.1665018309.git.asml.silence@gmail.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'io_uring/poll.h')
0 files changed, 0 insertions, 0 deletions