From: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Date: Tue, 10 Jan 2012 23:08:00 +0000 (-0800)
Subject: bootmem: micro optimize freeing pages in bulk
X-Git-Tag: v3.3-rc1~113^2~96
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=9571a982903bf9dcbca2479fd3e7dafd2211ecf9;p=pandora-kernel.git

bootmem: micro optimize freeing pages in bulk

The first entry of bdata->node_bootmem_map holds the data for
bdata->node_min_pfn up to bdata->node_min_pfn + BITS_PER_LONG - 1.  So the
test for freeing all pages of a single map entry can be slightly relaxed.

Moreover use DIV_ROUND_UP in another place instead of open coding it.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Cc: Johannes Weiner <hannes@saeurebad.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---

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