linux-kernel - RE: [RFC] arm:remove clear_thread_flag(TIF

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Date:	Fri, 31 Oct 2014 15:51:41 +0800
From:	"Wang, Yalin" <Yalin.Wang@...ymobile.com>
To:	'Joe Perches' <joe@...ches.com>
CC:	'Will Deacon' <will.deacon@....com>,
	'Ard Biesheuvel' <ard.biesheuvel@...aro.org>,
	'Russell King - ARM Linux' <linux@....linux.org.uk>,
	"'linux-kernel@...r.kernel.org'" <linux-kernel@...r.kernel.org>,
	"'akinobu.mita@...il.com'" <akinobu.mita@...il.com>,
	"'linux-mm@...ck.org'" <linux-mm@...ck.org>,
	"'linux-arm-kernel@...ts.infradead.org'" 
	<linux-arm-kernel@...ts.infradead.org>
Subject: RE: [RFC] arm:remove clear_thread_flag(TIF_UPROBE)

> From: Joe Perches [mailto:joe@...ches.com]
> > diff --git a/arch/arm/kernel/signal.c b/arch/arm/kernel/signal.c
> []
> > @@ -591,10 +591,9 @@ do_work_pending(struct pt_regs *regs, unsigned int
> thread_flags, int syscall)
> >  					return restart;
> >  				}
> >  				syscall = 0;
> > -			} else if (thread_flags & _TIF_UPROBE) {
> > -				clear_thread_flag(TIF_UPROBE);
> > +			} else if (thread_flags & _TIF_UPROBE)
> >  				uprobe_notify_resume(regs);
> > -			} else {
> > +			else {
> >  				clear_thread_flag(TIF_NOTIFY_RESUME);
> >  				tracehook_notify_resume(regs);
> >  			}
> 
> Please keep the braces.

mm..  could I know the reason ?  :)

Thanks
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