io_uring: add io_queue_async_work() helper

Add a helper for queueing a request for async execution, in preparation
for optimizing it.

No functional change in this patch.

Signed-off-by: Jens Axboe <axboe@kernel.dk>

diff --git a/fs/io_uring.c b/fs/io_uring.c
index b2f88c2dc2fddc4f0e6c0cf94b0a585cd9edd571..41840bf26d3b3024534a8979bd5028bbc643bf4d 100644 (file)
--- a/fs/io_uring.c
+++ b/fs/io_uring.c
@@ -443,6 +443,12 @@ static void __io_commit_cqring(struct io_ring_ctx *ctx)
        }
 }
 
+static inline void io_queue_async_work(struct io_ring_ctx *ctx,
+                                      struct io_kiocb *req)
+{
+       queue_work(ctx->sqo_wq, &req->work);
+}
+
 static void io_commit_cqring(struct io_ring_ctx *ctx)
 {
        struct io_kiocb *req;
@@ -456,7 +462,7 @@ static void io_commit_cqring(struct io_ring_ctx *ctx)
                        continue;
                }
                req->flags |= REQ_F_IO_DRAINED;
-               queue_work(ctx->sqo_wq, &req->work);
+               io_queue_async_work(ctx, req);
        }
 }
 
@@ -619,7 +625,7 @@ static void io_req_link_next(struct io_kiocb *req)
 
                nxt->flags |= REQ_F_LINK_DONE;
                INIT_WORK(&nxt->work, io_sq_wq_submit_work);
-               queue_work(req->ctx->sqo_wq, &nxt->work);
+               io_queue_async_work(req->ctx, nxt);
        }
 }
 
@@ -1519,7 +1525,7 @@ static void io_poll_remove_one(struct io_kiocb *req)
        WRITE_ONCE(poll->canceled, true);
        if (!list_empty(&poll->wait.entry)) {
                list_del_init(&poll->wait.entry);
-               queue_work(req->ctx->sqo_wq, &req->work);
+               io_queue_async_work(req->ctx, req);
        }
        spin_unlock(&poll->head->lock);
 
@@ -1633,7 +1639,7 @@ static int io_poll_wake(struct wait_queue_entry *wait, unsigned mode, int sync,
                io_cqring_ev_posted(ctx);
                io_put_req(req);
        } else {
-               queue_work(ctx->sqo_wq, &req->work);
+               io_queue_async_work(ctx, req);
        }
 
        return 1;
@@ -2073,7 +2079,7 @@ static int __io_queue_sqe(struct io_ring_ctx *ctx, struct io_kiocb *req,
                                if (list)
                                        atomic_inc(&list->cnt);
                                INIT_WORK(&req->work, io_sq_wq_submit_work);
-                               queue_work(ctx->sqo_wq, &req->work);
+                               io_queue_async_work(ctx, req);
                        }
 
                        /*