io_uring: remove iopoll spinlock

[platform/kernel/linux-starfive.git] / io_uring / rw.c

diff --git a/io_uring/rw.c b/io_uring/rw.c
index 98dfd8f..bb47cc4 100644 (file)
--- a/io_uring/rw.c
+++ b/io_uring/rw.c
@@ -1043,7 +1043,6 @@ int io_do_iopoll(struct io_ring_ctx *ctx, bool force_nonspin)
        else if (!pos)
                return 0;
 
-       spin_lock(&ctx->completion_lock);
        prev = start;
        wq_list_for_each_resume(pos, prev) {
                struct io_kiocb *req = container_of(pos, struct io_kiocb, comp_list);
@@ -1058,11 +1057,11 @@ int io_do_iopoll(struct io_ring_ctx *ctx, bool force_nonspin)
                req->cqe.flags = io_put_kbuf(req, 0);
                __io_fill_cqe_req(req->ctx, req);
        }
-       io_commit_cqring(ctx);
-       spin_unlock(&ctx->completion_lock);
+
        if (unlikely(!nr_events))
                return 0;
 
+       io_commit_cqring(ctx);
        io_cqring_ev_posted_iopoll(ctx);
        pos = start ? start->next : ctx->iopoll_list.first;
        wq_list_cut(&ctx->iopoll_list, prev, start);