From: Christoph Lameter <clameter@sgi.com>
Date: Thu, 7 Dec 2006 04:33:02 +0000 (-0800)
Subject: [PATCH] drain_node_page(): Drain pages in batch units
X-Git-Tag: v2.6.20-rc1~145^2^2~318
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=bc4ba393c007248f76c05945abb7b7b892cdd1cc;p=pandora-kernel.git

[PATCH] drain_node_page(): Drain pages in batch units

drain_node_pages() currently drains the complete pageset of all pages.  If
there are a large number of pages in the queues then we may hold off
interrupts for too long.

Duplicate the method used in free_hot_cold_page.  Only drain pcp->batch
pages at one time.

Signed-off-by: Christoph Lameter <clameter@sgi.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
---

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