diff options
Diffstat (limited to 'io_uring')
| -rw-r--r-- | io_uring/io_uring.c | 14 |
1 files changed, 12 insertions, 2 deletions
diff --git a/io_uring/io_uring.c b/io_uring/io_uring.c index a9a519fa9926e..4afb911fc042b 100644 --- a/io_uring/io_uring.c +++ b/io_uring/io_uring.c @@ -2615,8 +2615,6 @@ static int io_cqring_wait(struct io_ring_ctx *ctx, int min_events, __set_current_state(TASK_RUNNING); atomic_set(&ctx->cq_wait_nr, 0); - if (ret < 0) - break; /* * Run task_work after scheduling and before io_should_wake(). * If we got woken because of task_work being processed, run it @@ -2626,6 +2624,18 @@ static int io_cqring_wait(struct io_ring_ctx *ctx, int min_events, if (!llist_empty(&ctx->work_llist)) io_run_local_work(ctx); + /* + * Non-local task_work will be run on exit to userspace, but + * if we're using DEFER_TASKRUN, then we could have waited + * with a timeout for a number of requests. If the timeout + * hits, we could have some requests ready to process. Ensure + * this break is _after_ we have run task_work, to avoid + * deferring running potentially pending requests until the + * next time we wait for events. + */ + if (ret < 0) + break; + check_cq = READ_ONCE(ctx->check_cq); if (unlikely(check_cq)) { /* let the caller flush overflows, retry */ |