diff --git a/fs/io_uring.c b/fs/io_uring.c index 956ff1bf18b9bb146ab346af0c9f65d1ffe6df26..5a443b0a86054bdbb2974e3df084b5e118617966 100644 --- a/fs/io_uring.c +++ b/fs/io_uring.c @@ -979,19 +979,6 @@ static inline bool req_need_defer(struct io_kiocb *req) return false; } -static struct io_kiocb *io_get_deferred_req(struct io_ring_ctx *ctx) -{ - struct io_kiocb *req; - - req = list_first_entry_or_null(&ctx->defer_list, struct io_kiocb, list); - if (req && !req_need_defer(req)) { - list_del_init(&req->list); - return req; - } - - return NULL; -} - static struct io_kiocb *io_get_timeout_req(struct io_ring_ctx *ctx) { struct io_kiocb *req; @@ -1124,6 +1111,19 @@ static void io_kill_timeouts(struct io_ring_ctx *ctx) spin_unlock_irq(&ctx->completion_lock); } +static void __io_queue_deferred(struct io_ring_ctx *ctx) +{ + do { + struct io_kiocb *req = list_first_entry(&ctx->defer_list, + struct io_kiocb, list); + + if (req_need_defer(req)) + break; + list_del_init(&req->list); + io_queue_async_work(req); + } while (!list_empty(&ctx->defer_list)); +} + static void io_commit_cqring(struct io_ring_ctx *ctx) { struct io_kiocb *req; @@ -1133,8 +1133,8 @@ static void io_commit_cqring(struct io_ring_ctx *ctx) __io_commit_cqring(ctx); - while ((req = io_get_deferred_req(ctx)) != NULL) - io_queue_async_work(req); + if (unlikely(!list_empty(&ctx->defer_list))) + __io_queue_deferred(ctx); } static struct io_uring_cqe *io_get_cqring(struct io_ring_ctx *ctx)