From: Marek Szyprowski <m.szyprowski@samsung.com>
Date: Wed, 12 Dec 2012 21:51:19 +0000 (-0800)
Subject: mm: use migrate_prep() instead of migrate_prep_local()
X-Git-Tag: omap-for-v3.8/fixes-for-merge-window-v4-signed~33^2~37
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=be49a6e13537f32f85bd8c4ba04317ca36ca60ff;p=pandora-kernel.git

mm: use migrate_prep() instead of migrate_prep_local()

__alloc_contig_migrate_range() should use all possible ways to get all the
pages migrated from the given memory range, so pruning per-cpu lru lists
for all CPUs is required, regadless the cost of such operation.  Otherwise
some pages which got stuck at per-cpu lru list might get missed by
migration procedure causing the contiguous allocation to fail.

Reported-by: SeongHwan Yoon <sunghwan.yun@samsung.com>
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Acked-by: Michal Nazarewicz <mina86@mina86.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---

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