linux-kernel - Re: [PATCH 37/41] autofs4: Use set_current

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Date:	Tue, 16 Aug 2011 21:29:46 +0100
From:	Matt Fleming <matt@...sole-pimps.org>
To:	Oleg Nesterov <oleg@...hat.com>
Cc:	linux-kernel@...r.kernel.org, Ian Kent <raven@...maw.net>
Subject: Re: [PATCH 37/41] autofs4: Use set_current_blocked()

On Tue, 2011-08-16 at 19:47 +0200, Oleg Nesterov wrote:
> On 08/11, Matt Fleming wrote:
> >
> > As described in e6fa16ab ("signal: sigprocmask() should do
> > retarget_shared_pending()") the modification of current->blocked is
> > incorrect as we need to check whether the signal we're about to block
> > is pending in the shared queue.
> 
> ACK.
> 
> 
> cough, can't resist...
> 
> > @@ -458,21 +458,16 @@ int autofs4_wait(struct autofs_sb_info *sbi, struct dentry *dentry,
> >  	 */
> >  	if (wq->name.name) {
> >  		/* Block all but "shutdown" signals while waiting */
> > -		sigset_t oldset;
> > +		sigset_t oldset, blocked;
> >  		unsigned long irqflags;
> >  
> > -		spin_lock_irqsave(&current->sighand->siglock, irqflags);
> >  		oldset = current->blocked;
> > -		siginitsetinv(&current->blocked, SHUTDOWN_SIGS & ~oldset.sig[0]);
> > -		recalc_sigpending();
> > -		spin_unlock_irqrestore(&current->sighand->siglock, irqflags);
> > +		siginitsetinv(&blocked, SHUTDOWN_SIGS & ~oldset.sig[0]);
> > +		set_current_blocked(&blocked);
> >  
> >  		wait_event_interruptible(wq->queue, wq->name.name == NULL);
> > -
> > -		spin_lock_irqsave(&current->sighand->siglock, irqflags);
> > -		current->blocked = oldset;
> > -		recalc_sigpending();
> > -		spin_unlock_irqrestore(&current->sighand->siglock, irqflags);
> > +		
> 
> this adds the trailing whitespaces ;)

Whoops! I fixed that and added your Acked-by. Thanks!

-- 
Matt Fleming, Intel Open Source Technology Center

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