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Diffstat (limited to 'io_uring')
-rw-r--r--io_uring/io_uring.c39
1 files changed, 23 insertions, 16 deletions
diff --git a/io_uring/io_uring.c b/io_uring/io_uring.c
index 524ef5a2bb9c..2cbf33996c3b 100644
--- a/io_uring/io_uring.c
+++ b/io_uring/io_uring.c
@@ -2470,24 +2470,19 @@ static inline int io_cqring_wait_schedule(struct io_ring_ctx *ctx,
struct io_wait_queue *iowq,
ktime_t *timeout)
{
- int ret;
-
if (unlikely(READ_ONCE(ctx->check_cq)))
return 1;
- /* make sure we run task_work before checking for signals */
- ret = io_run_task_work_sig(ctx);
- if (ret || io_should_wake(iowq))
- return ret;
+ if (unlikely(!llist_empty(&ctx->work_llist)))
+ return 1;
+ if (unlikely(test_thread_flag(TIF_NOTIFY_SIGNAL)))
+ return 1;
+ if (unlikely(task_sigpending(current)))
+ return -EINTR;
+ if (unlikely(io_should_wake(iowq)))
+ return 0;
if (!schedule_hrtimeout(timeout, HRTIMER_MODE_ABS))
return -ETIME;
-
- /*
- * Run task_work after scheduling. If we got woken because of
- * task_work being processed, run it now rather than let the caller
- * do another wait loop.
- */
- ret = io_run_task_work_sig(ctx);
- return ret < 0 ? ret : 1;
+ return 0;
}
/*
@@ -2548,6 +2543,16 @@ static int io_cqring_wait(struct io_ring_ctx *ctx, int min_events,
prepare_to_wait_exclusive(&ctx->cq_wait, &iowq.wq,
TASK_INTERRUPTIBLE);
ret = io_cqring_wait_schedule(ctx, &iowq, &timeout);
+ 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
+ * now rather than let the caller do another wait loop.
+ */
+ io_run_task_work();
+ if (!llist_empty(&ctx->work_llist))
+ io_run_local_work(ctx);
check_cq = READ_ONCE(ctx->check_cq);
if (unlikely(check_cq)) {
@@ -2562,10 +2567,12 @@ static int io_cqring_wait(struct io_ring_ctx *ctx, int min_events,
}
}
- if (__io_cqring_events_user(ctx) >= min_events)
+ if (io_should_wake(&iowq)) {
+ ret = 0;
break;
+ }
cond_resched();
- } while (ret > 0);
+ } while (1);
finish_wait(&ctx->cq_wait, &iowq.wq);
restore_saved_sigmask_unless(ret == -EINTR);