linux-kernel - Re: [PATCH v2 16/17] signal: make security_task

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Date:   Fri, 1 Jun 2018 18:26:25 +0200
From:   Oleg Nesterov <oleg@...hat.com>
To:     Christian Brauner <christian@...uner.io>
Cc:     linux-kernel@...r.kernel.org, ebiederm@...ssion.com,
        gregkh@...uxfoundation.org, mingo@...nel.org,
        james.morris@...rosoft.com, keescook@...omium.org,
        peterz@...radead.org, sds@...ho.nsa.gov, viro@...iv.linux.org.uk,
        akpm@...ux-foundation.org
Subject: Re: [PATCH v2 16/17] signal: make security_task_kill() return bool

On 06/01, Christian Brauner wrote:
>
> security_task_kill() already behaves like a boolean function. Let's
> actually declare it as such too.

The subject/changelog is wrong, this patch changes sigkill_pending()

> Signed-off-by: Christian Brauner <christian@...uner.io>
> ---
> v1->v2:
> * unchanged
> v0->v1:
> * patch added
> ---
>  kernel/signal.c | 6 +++---
>  1 file changed, 3 insertions(+), 3 deletions(-)
> 
> diff --git a/kernel/signal.c b/kernel/signal.c
> index 515fa59a0e9c..d5f9472a0935 100644
> --- a/kernel/signal.c
> +++ b/kernel/signal.c
> @@ -1922,10 +1922,10 @@ static inline bool may_ptrace_stop(void)
>   * Return non-zero if there is a SIGKILL that should be waking us up.
>   * Called with the siglock held.
>   */
> -static int sigkill_pending(struct task_struct *tsk)
> +static bool sigkill_pending(struct task_struct *tsk)
>  {
> -	return	sigismember(&tsk->pending.signal, SIGKILL) ||
> -		sigismember(&tsk->signal->shared_pending.signal, SIGKILL);
> +	return sigismember(&tsk->pending.signal, SIGKILL) ||
> +	       sigismember(&tsk->signal->shared_pending.signal, SIGKILL);
>  }
>  
>  /*
> -- 
> 2.17.0
>