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| author | Pavel Begunkov <asml.silence@gmail.com> | 2023-08-25 01:53:26 +0300 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2023-08-25 02:16:19 +0300 |
| commit | 20d6b633870495fda1d92d283ebf890d80f68ecd (patch) | |
| tree | 7524f936651157f0f4df43444f89f5f718e6004d /io_uring/io_uring.h | |
| parent | b24c5d752962fa0970cd7e3d74b1cd0e843358de (diff) | |
| download | linux-20d6b633870495fda1d92d283ebf890d80f68ecd.tar.xz | |
io_uring: refactor __io_get_cqe()
Make __io_get_cqe simpler by not grabbing the cqe from refilled cached,
but letting io_get_cqe() do it for us. That's cleaner and removes some
duplication.
Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Link: https://lore.kernel.org/r/74dc8fdf2657e438b2e05e1d478a3596924604e9.1692916914.git.asml.silence@gmail.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'io_uring/io_uring.h')
| -rw-r--r-- | io_uring/io_uring.h | 23 |
1 files changed, 12 insertions, 11 deletions
diff --git a/io_uring/io_uring.h b/io_uring/io_uring.h index 9b5dfb6ef484..9c80d20fe18f 100644 --- a/io_uring/io_uring.h +++ b/io_uring/io_uring.h @@ -38,7 +38,7 @@ enum { IOU_STOP_MULTISHOT = -ECANCELED, }; -struct io_uring_cqe *__io_get_cqe(struct io_ring_ctx *ctx, bool overflow); +bool io_cqe_cache_refill(struct io_ring_ctx *ctx, bool overflow); void io_req_cqe_overflow(struct io_kiocb *req); int io_run_task_work_sig(struct io_ring_ctx *ctx); void io_req_defer_failed(struct io_kiocb *req, s32 res); @@ -112,19 +112,20 @@ static inline void io_req_task_work_add(struct io_kiocb *req) static inline struct io_uring_cqe *io_get_cqe_overflow(struct io_ring_ctx *ctx, bool overflow) { - io_lockdep_assert_cq_locked(ctx); + struct io_uring_cqe *cqe; - if (likely(ctx->cqe_cached < ctx->cqe_sentinel)) { - struct io_uring_cqe *cqe = ctx->cqe_cached; + io_lockdep_assert_cq_locked(ctx); - ctx->cached_cq_tail++; - ctx->cqe_cached++; - if (ctx->flags & IORING_SETUP_CQE32) - ctx->cqe_cached++; - return cqe; + if (unlikely(ctx->cqe_cached >= ctx->cqe_sentinel)) { + if (unlikely(!io_cqe_cache_refill(ctx, overflow))) + return NULL; } - - return __io_get_cqe(ctx, overflow); + cqe = ctx->cqe_cached; + ctx->cached_cq_tail++; + ctx->cqe_cached++; + if (ctx->flags & IORING_SETUP_CQE32) + ctx->cqe_cached++; + return cqe; } static inline struct io_uring_cqe *io_get_cqe(struct io_ring_ctx *ctx) |