From: Shaohua Li <shaohua.li@intel.com>
Date: Thu, 21 Aug 2008 02:46:06 +0000 (+0800)
Subject: x86, pageattr: introduce APIs to change pageattr of a page array
X-Git-Tag: v2.6.28-rc1~713^2~23
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=d75586ad01e6c5a30e7337fb87d61e03556a1ecb;p=pandora-kernel.git

x86, pageattr: introduce APIs to change pageattr of a page array

Add array interface APIs of pageattr. page based cache flush is quite
slow for a lot of pages. If pages are more than 1024 (4M), the patch
will use a wbinvd(). We have a simple test here (run a 3d game - open
arena), nearly all agp memory allocation are small (< 1M), so suppose
this will not impact runtime performance.

Signed-off-by: Dave Airlie <airlied@gmail.com>
Signed-off-by: Shaohua Li <shaohua.li@intel.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
---

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