linux-kernel - Re: [uml-devel] [PATCH] UML

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Message-Id: <200709261742.44100.p.giarrusso@gmail.com>
Date:	Wed, 26 Sep 2007 17:42:32 +0200
From:	Paolo Giarrusso <p.giarrusso@...il.com>
To:	user-mode-linux-devel@...ts.sourceforge.net
Cc:	Jeff Dike <jdike@...toit.com>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	LKML <linux-kernel@...r.kernel.org>
Subject: Re: [uml-devel] [PATCH] UML - Fix irqstack crash

On lunedì 24 settembre 2007, Jeff Dike wrote:
> On Thu, Sep 20, 2007 at 05:57:49PM +0200, Paolo Giarrusso wrote:
> > Yes, indeed - or sign extension on 64bit machines would set to 1 the
> > whole high-word.
> >
> > But using long for that mask makes no difference; either int or long
> > long (or  better, either u32 or u64) should be used, given that the
> > used signal range  is the same on 32 and 64bit machines, it should
> > be u32 for normal signals or u64 if RT-signals are also allowed.
>
> We don't use RT signals for anything, so we could use u32.
I wasn't sure of that.
> I don't 
> see it making much difference though.
Agreed - the only difference is for cleanliness and easy verification.
-- 
"Doh!" (cit.), I've made another mistake!
Paolo Giarrusso, aka Blaisorblade

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