Re: [PATCH][RT] futex: protect against pi_blocked_on corruptionduring requeue PI

[Thomas Gleixner]

On Tue, 13 Jul 2010, Darren Hart wrote:
> diff --git a/kernel/futex.c b/kernel/futex.c
> index a6cec32..c92978d 100644
> --- a/kernel/futex.c
> +++ b/kernel/futex.c
> @@ -1336,6 +1336,9 @@ retry_private:
>  				requeue_pi_wake_futex(this, &key2, hb2);
>  				drop_count++;
>  				continue;
> +			} else if (ret == -EAGAIN) {
> +				/* Waiter woken by timeout or signal. */

  This leaks the pi_state.

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