linux-ext4 - Re: [PATCH 1/1] x86: fix text

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Message-ID: <20080425180451.GA3445@elte.hu>
Date:	Fri, 25 Apr 2008 20:04:51 +0200
From:	Ingo Molnar <mingo@...e.hu>
To:	Linus Torvalds <torvalds@...ux-foundation.org>
Cc:	Andi Kleen <andi@...stfloor.org>, Jiri Slaby <jirislaby@...il.com>,
	David Miller <davem@...emloft.net>, zdenek.kabelac@...il.com,
	rjw@...k.pl, paulmck@...ux.vnet.ibm.com, akpm@...ux-foundation.org,
	linux-ext4@...r.kernel.org, herbert@...dor.apana.org.au,
	penberg@...helsinki.fi, clameter@....com,
	linux-kernel@...r.kernel.org,
	Mathieu Desnoyers <mathieu.desnoyers@...ymtl.ca>,
	pageexec@...email.hu, "H. Peter Anvin" <hpa@...or.com>,
	Jeremy Fitzhardinge <jeremy@...p.org>
Subject: Re: [PATCH 1/1] x86: fix text_poke


* Ingo Molnar <mingo@...e.hu> wrote:

> yeah, it's done 2800 times on my box with a distro .config.
> 
> no strong feeling either way - but i dont think there's any cross-CPU 
> TLB flush done in this case within vmap()/vunmap(). Why? Because when 
> alternative_instructions() runs then we have just a single CPU in 
> cpu_online_map.

i mean, alternatives_smp_switch().

	Ingo
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