From: Ingo Molnar <mingo@elte.hu>
Date: Wed, 13 Feb 2008 13:37:52 +0000 (+0100)
Subject: x86: make DEBUG_PAGEALLOC and CPA more robust
X-Git-Tag: v2.6.25-rc4~159^2~20
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=92cb54a37a42a41cfb2ef7f1478bfa4395198258;p=pandora-kernel.git

x86: make DEBUG_PAGEALLOC and CPA more robust

Use PF_MEMALLOC to prevent recursive calls in the DBEUG_PAGEALLOC
case. This makes the code simpler and more robust against allocation
failures.

This fixes the following fallback to non-mmconfig:

   http://lkml.org/lkml/2008/2/20/551
   http://bugzilla.kernel.org/show_bug.cgi?id=10083

Also, for DEBUG_PAGEALLOC=n reduce the pool size to one page.

Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---

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