diff options
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) |