From mboxrd@z Thu Jan  1 00:00:00 1970
From: mingo@elte.hu (Ingo Molnar)
Date: Thu, 30 Apr 2009 17:42:55 +0200
Subject: [ltt-dev] [PATCH] Fix dirty page accounting
	in	redirty_page_for_writepage()
In-Reply-To: <alpine.DEB.1.10.0904301114440.4028@qirst.com>
References: <20090430024303.GB19875@Krystal>
	<alpine.DEB.1.10.0904300921290.22262@qirst.com>
	<20090430133859.GB8329@elte.hu>
	<alpine.DEB.1.10.0904300938220.22262@qirst.com>
	<20090430141446.GD14696@elte.hu>
	<alpine.DEB.1.10.0904301013110.14178@qirst.com>
	<20090430143819.GF14696@elte.hu>
	<alpine.DEB.1.10.0904301042170.4028@qirst.com>
	<20090430150142.GC20580@elte.hu>
	<alpine.DEB.1.10.0904301114440.4028@qirst.com>
Message-ID: <20090430154255.GA3714@elte.hu>


* Christoph Lameter <cl at linux.com> wrote:

> On Thu, 30 Apr 2009, Ingo Molnar wrote:
> 
> > Could you cite a specific example / situation where you'd use __xxx
> > ops?
> 
> Well the cpu alloc v3 patchset (already cited) included numerous 
> locations. Sure wish we could move much of the core stats over to 
> percpu ops. Here is a list of some stats patches that do not need 
> irq disable.
> 
> http://article.gmane.org/gmane.linux.kernel.cross-arch/1128
> http://article.gmane.org/gmane.linux.kernel.cross-arch/1132
> http://article.gmane.org/gmane.linux.kernel.cross-arch/1134
> http://article.gmane.org/gmane.linux.kernel.cross-arch/1138
> http://article.gmane.org/gmane.linux.kernel.cross-arch/1139
> http://article.gmane.org/gmane.linux.kernel.cross-arch/1145 VM stats
> http://article.gmane.org/gmane.linux.kernel.cross-arch/1160 NFS stats
> http://article.gmane.org/gmane.linux.kernel.cross-arch/1161 Genhd stats
> http://article.gmane.org/gmane.linux.kernel.cross-arch/1163 Socket inuse counter
> http://article.gmane.org/gmane.linux.kernel.cross-arch/1164 SRCU

nice. Do these all get called with irqs off, all the time?

	Ingo