linux-kernel - Re: [PATCH] [19/31] mm: export stable page flags

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Date:	Thu, 10 Dec 2009 10:09:27 +0800
From:	Wu Fengguang <fengguang.wu@...el.com>
To:	Andi Kleen <andi@...stfloor.org>
Cc:	Matt Mackall <mpm@...enic.com>,
	"npiggin@...e.de" <npiggin@...e.de>,
	"cl@...ux-foundation.org" <cl@...ux-foundation.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"linux-mm@...ck.org" <linux-mm@...ck.org>
Subject: Re: [PATCH] [19/31] mm: export stable page flags

On Thu, Dec 10, 2009 at 09:50:14AM +0800, Andi Kleen wrote:
> > Sorry the stable_page_flags() will be undefined on
> > !CONFIG_PROC_PAGE_MONITOR (it is almost always on,
> > except for some embedded systems).
> > 
> > Currently the easy solution is to add a Kconfig dependency to
> > CONFIG_PROC_PAGE_MONITOR.  When there comes more users (ie. some
> > ftrace event), we can then always compile in stable_page_flags().
> 
> I decided to turn it into select instead.

OK, that would be good.

> Your original patch didn't handle hwpoison as module btw.

Yes I realized it later..

Thanks,
Fengguang
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