diff options
| author | Pavel Begunkov <asml.silence@gmail.com> | 2022-06-20 01:25:56 +0100 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2022-07-24 18:39:14 -0600 |
| commit | 253993210bd8aa3b39a392807c03c8ef1cd7dc3d (patch) | |
| tree | 09276f23754ea44fd9e7e46e9921c86ea8fb2482 /io_uring/rw.c | |
| parent | 305bef98870816ae58357d647521891ec558a92e (diff) | |
io_uring: introduce locking helpers for CQE posting
spin_lock(&ctx->completion_lock);
/* post CQEs */
io_commit_cqring(ctx);
spin_unlock(&ctx->completion_lock);
io_cqring_ev_posted(ctx);
We have many places repeating this sequence, and the three function
unlock section is not perfect from the maintainance perspective and also
makes it harder to add new locking/sync trick.
Introduce two helpers. io_cq_lock(), which is simple and only grabs
->completion_lock, and io_cq_unlock_post() encapsulating the three call
section.
Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Link: https://lore.kernel.org/r/fe0c682bf7f7b55d9be55b0d034be9c1949277dc.1655684496.git.asml.silence@gmail.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'io_uring/rw.c')
0 files changed, 0 insertions, 0 deletions