Re: [PATCH 1/2] seccomp: notify user trap about unused filter

From: Tycho Andersen
Date: Wed May 27 2020 - 11:26:08 EST


On Wed, May 27, 2020 at 01:19:01PM +0200, Christian Brauner wrote:
> +void seccomp_filter_notify(const struct task_struct *tsk)
> +{
> + struct seccomp_filter *orig = tsk->seccomp.filter;
> +
> + while (orig && refcount_dec_and_test(&orig->live)) {
> + if (waitqueue_active(&orig->wqh))
> + wake_up_poll(&orig->wqh, EPOLLHUP);
> + orig = orig->prev;
> + }
> +}

Is there a reason this can't live in put_seccomp_filter()?

Tycho