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| author | Pavel Begunkov <asml.silence@gmail.com> | 2025-04-24 12:28:39 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2025-05-29 11:12:21 +0200 |
| commit | 3f0e5a1d263765724e3f45002d2b0212743db352 (patch) | |
| tree | 0d33586e77402bfccda4bca75ee8f91d4f2bf9ca /io_uring | |
| parent | 38dc0472de332cff478a8b982f3693111727e855 (diff) | |
| download | linux-3f0e5a1d263765724e3f45002d2b0212743db352.tar.gz linux-3f0e5a1d263765724e3f45002d2b0212743db352.tar.bz2 linux-3f0e5a1d263765724e3f45002d2b0212743db352.zip | |
io_uring: don't duplicate flushing in io_req_post_cqe
[ Upstream commit 5e16f1a68d28965c12b6fa227a306fef8a680f84 ]
io_req_post_cqe() sets submit_state.cq_flush so that
*flush_completions() can take care of batch commiting CQEs. Don't commit
it twice by using __io_cq_unlock_post().
Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Link: https://lore.kernel.org/r/41c416660c509cee676b6cad96081274bcb459f3.1745493861.git.asml.silence@gmail.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'io_uring')
| -rw-r--r-- | io_uring/io_uring.c | 11 |
1 files changed, 8 insertions, 3 deletions
diff --git a/io_uring/io_uring.c b/io_uring/io_uring.c index a60cb9d30cc0..f1c09e2b5302 100644 --- a/io_uring/io_uring.c +++ b/io_uring/io_uring.c @@ -864,10 +864,15 @@ bool io_req_post_cqe(struct io_kiocb *req, s32 res, u32 cflags) lockdep_assert(!io_wq_current_is_worker()); lockdep_assert_held(&ctx->uring_lock); - __io_cq_lock(ctx); - posted = io_fill_cqe_aux(ctx, req->cqe.user_data, res, cflags); + if (!ctx->lockless_cq) { + spin_lock(&ctx->completion_lock); + posted = io_fill_cqe_aux(ctx, req->cqe.user_data, res, cflags); + spin_unlock(&ctx->completion_lock); + } else { + posted = io_fill_cqe_aux(ctx, req->cqe.user_data, res, cflags); + } + ctx->submit_state.cq_flush = true; - __io_cq_unlock_post(ctx); return posted; } |