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

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Message-ID: <20180602093158.GA6095@mailbox.org>
Date:   Sat, 2 Jun 2018 11:31:58 +0200
From:   Christian Brauner <christian@...uner.io>
To:     Oleg Nesterov <oleg@...hat.com>
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 Fri, Jun 01, 2018 at 06:26:25PM +0200, Oleg Nesterov wrote:
> 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()

Ah yes, s/security_task_kill()/sigkill_pending()

Thanks!
Christian

> 
> > 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
> > 
>