diff options
Diffstat (limited to 'io_uring/io_uring.c')
| -rw-r--r-- | io_uring/io_uring.c | 22 |
1 files changed, 12 insertions, 10 deletions
diff --git a/io_uring/io_uring.c b/io_uring/io_uring.c index 8a327a81beaf..0ea50c46f27f 100644 --- a/io_uring/io_uring.c +++ b/io_uring/io_uring.c @@ -627,21 +627,23 @@ static inline void __io_cq_unlock_post(struct io_ring_ctx *ctx) io_cqring_wake(ctx); } -static inline void __io_cq_unlock_post_flush(struct io_ring_ctx *ctx) +static void __io_cq_unlock_post_flush(struct io_ring_ctx *ctx) __releases(ctx->completion_lock) { io_commit_cqring(ctx); - __io_cq_unlock(ctx); - io_commit_cqring_flush(ctx); - /* - * As ->task_complete implies that the ring is single tasked, cq_wait - * may only be waited on by the current in io_cqring_wait(), but since - * it will re-check the wakeup conditions once we return we can safely - * skip waking it up. - */ - if (!(ctx->flags & IORING_SETUP_DEFER_TASKRUN)) + if (ctx->task_complete) { + /* + * ->task_complete implies that only current might be waiting + * for CQEs, and obviously, we currently don't. No one is + * waiting, wakeups are futile, skip them. + */ + io_commit_cqring_flush(ctx); + } else { + __io_cq_unlock(ctx); + io_commit_cqring_flush(ctx); io_cqring_wake(ctx); + } } void io_cq_unlock_post(struct io_ring_ctx *ctx) |