linux-kernel - Re: [RFC 4/4]x86: avoid tlbstate lock if no enough cpus

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Message-ID: <1288775282.2511.9.camel@edumazet-laptop>
Date:	Wed, 03 Nov 2010 10:08:02 +0100
From:	Eric Dumazet <eric.dumazet@...il.com>
To:	Shaohua Li <shaohua.li@...el.com>
Cc:	lkml <linux-kernel@...r.kernel.org>, Ingo Molnar <mingo@...e.hu>,
	Andi Kleen <andi@...stfloor.org>,
	"hpa@...or.com" <hpa@...or.com>
Subject: Re: [RFC 4/4]x86: avoid tlbstate lock if no enough cpus

Le mercredi 03 novembre 2010 à 16:41 +0800, Shaohua Li a écrit :

> yes, this is ok. we might need avoid some cpu hotplug race too. I'll
> post a new patch later.
> 
> 

Hmm, maybe only set the variable "must take the lock", never unset it.



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