From: Johannes Weiner <hannes@cmpxchg.org>
Date: Tue, 10 Jan 2012 23:08:15 +0000 (-0800)
Subject: mm: bootmem: try harder to free pages in bulk
X-Git-Tag: v3.3-rc1~113^2~89
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=799f933a82d878d7f15215473c5561ce984ada75;p=pandora-kernel.git

mm: bootmem: try harder to free pages in bulk

The loop that frees pages to the page allocator while bootstrapping tries
to free higher-order blocks only when the starting address is aligned to
that block size.  Otherwise it will free all pages on that node
one-by-one.

Change it to free individual pages up to the first aligned block and then
try higher-order frees from there.

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

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