Date: Wed, 23 Nov 2005 23:23:06 +0100
From: Andi Kleen <ak@suse.de>
To: Jeff Garzik <jgarzik@pobox.com>
Cc: Andi Kleen <ak@suse.de>, Alan Cox <alan@lxorguk.ukuu.org.uk>,
       Linus Torvalds <torvalds@osdl.org>, "H. Peter Anvin" <hpa@zytor.com>,
       Gerd Knorr <kraxel@suse.de>, Dave Jones <davej@redhat.com>,
       Zachary Amsden <zach@vmware.com>, Pavel Machek <pavel@ucw.cz>,
       Andrew Morton <akpm@osdl.org>,
       Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
       Zwane Mwaikambo <zwane@arm.linux.org.uk>,
       Pratap Subrahmanyam <pratap@vmware.com>,
       Christopher Li <chrisl@vmware.com>,
       "Eric W. Biederman" <ebiederm@xmission.com>,
       Ingo Molnar <mingo@elte.hu>
Subject: Re: [patch] SMP alternatives
Message-ID: <20051123222306.GW20775@brahms.suse.de>
References: <p7364qjjhqx.fsf@verdi.suse.de> <1132764133.7268.51.camel@localhost.localdomain> <20051123163906.GF20775@brahms.suse.de> <1132766489.7268.71.camel@localhost.localdomain> <Pine.LNX.4.64.0511230858180.13959@g5.osdl.org> <4384AECC.1030403@zytor.com> <Pine.LNX.4.64.0511231031350.13959@g5.osdl.org> <1132782245.13095.4.camel@localhost.localdomain> <20051123211353.GR20775@brahms.suse.de> <4384E333.8030901@pobox.com>
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On Wed, Nov 23, 2005 at 04:46:27PM -0500, Jeff Garzik wrote:
> Andi Kleen wrote:
> >The idea was to turn LOCK on only if the process has any
> >shared writable mapping and num_online_cpus() > 0.
> 
> Yep.  Though I presume you mean "> 1".

Yeah, > 1 of course.
-Andi
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