linux-kernel - Re: [PATCH 1/2] [x86] arch/x86/kernel/signal

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Message-ID: <20080217162335.GF6006@elte.hu>
Date:	Sun, 17 Feb 2008 17:23:35 +0100
From:	Ingo Molnar <mingo@...e.hu>
To:	Roel Kluin <12o3l@...cali.nl>
Cc:	Thomas Gleixner <tglx@...utronix.de>, mingo@...hat.com,
	hpa@...or.com, lkml <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 1/2] [x86] arch/x86/kernel/signal_32.c: replace
	!likely(x) by likely(!x)


* Roel Kluin <12o3l@...cali.nl> wrote:

> -	if (on_sig_stack(sp) && !likely(on_sig_stack(sp - frame_size)))
> +	if (on_sig_stack(sp) && unlikely(!on_sig_stack(sp - frame_size)))

hm, what's the purpose of this change?

	Ingo
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