Re: [PATCH] io_uring: fix invalid handler for double apoll

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On 10/25/20 8:26 AM, Pavel Begunkov wrote:
> io_poll_double_wake() is called for both: poll requests and as apoll
> (internal poll to make rw and other requests), hence when it calls
> __io_async_wake() it should use a right callback depending on the
> current poll type.

Can we do something like this instead? Untested...


diff --git a/fs/io_uring.c b/fs/io_uring.c
index b42dfa0243bf..a0147c0e5320 100644
--- a/fs/io_uring.c
+++ b/fs/io_uring.c
@@ -4978,7 +4978,7 @@ static int io_poll_double_wake(struct wait_queue_entry *wait, unsigned mode,
 		wait->private = NULL;
 		spin_unlock(&poll->head->lock);
 		if (!done)
-			__io_async_wake(req, poll, mask, io_poll_task_func);
+			poll->wait.func(wait, mode, sync, key);
 	}
 	refcount_dec(&req->refs);
 	return 1;

-- 
Jens Axboe




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