tree 70637cb57f22cc73c2411c15d411ed02df941f57
parent fa8ea82ddb07efa8e50523b2ee8b612885ede89f
author woojoong.lee <woojoong.lee@samsung.com> 1354586323 -0800
committer Laura Abbott <lauraa@codeaurora.org> 1355323852 -0800

cma : 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.

Change-Id: I70cc0864c57dd49e89f57797122a3fd0f300647a
Signed-off-by: woojoong.lee <woojoong.lee@samsung.com>
Reviewed-on: http://165.213.202.130:8080/43063
Tested-by: System S/W SCM <scm.systemsw@samsung.com>
Reviewed-by: daeho jeong <daeho.jeong@samsung.com>
Reviewed-by: Jeong-Ho Kim <jammer@samsung.com>
Tested-by: Jeong-Ho Kim <jammer@samsung.com>
[lauraa@codeaurora.org: Applied to correct file]
Signed-off-by: Laura Abbott <lauraa@codeaurora.org>