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authorMinchan Kim <minchan@kernel.org>2012-10-08 16:32:52 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2012-10-09 16:22:52 +0900
commit723a0644a7255f532575fd43245f9ef976491328 (patch)
tree1dfca4e804a7031889af36dbbf2a991637333680 /mm/page_isolation.c
parent3f6d4caeb9a9d8f7e5bbf3f49f1fd71e1414ff64 (diff)
downloadlinux-723a0644a7255f532575fd43245f9ef976491328.tar.gz
mm/page_alloc: refactor out __alloc_contig_migrate_alloc()
__alloc_contig_migrate_alloc() can be used by memory-hotplug so refactor it out (move + rename as a common name) into page_isolation.c. [akpm@linux-foundation.org: checkpatch fixes] Signed-off-by: Minchan Kim <minchan@kernel.org> Cc: Kamezawa Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com> Reviewed-by: Yasuaki Ishimatsu <isimatu.yasuaki@jp.fujitsu.com> Acked-by: Michal Nazarewicz <mina86@mina86.com> Cc: Marek Szyprowski <m.szyprowski@samsung.com> Cc: Wen Congyang <wency@cn.fujitsu.com> Acked-by: David Rientjes <rientjes@google.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm/page_isolation.c')
-rw-r--r--mm/page_isolation.c11
1 files changed, 11 insertions, 0 deletions
diff --git a/mm/page_isolation.c b/mm/page_isolation.c
index 5f34a9053ce..f2f5b4818e9 100644
--- a/mm/page_isolation.c
+++ b/mm/page_isolation.c
@@ -255,3 +255,14 @@ int test_pages_isolated(unsigned long start_pfn, unsigned long end_pfn)
spin_unlock_irqrestore(&zone->lock, flags);
return ret ? 0 : -EBUSY;
}
+
+struct page *alloc_migrate_target(struct page *page, unsigned long private,
+ int **resultp)
+{
+ gfp_t gfp_mask = GFP_USER | __GFP_MOVABLE;
+
+ if (PageHighMem(page))
+ gfp_mask |= __GFP_HIGHMEM;
+
+ return alloc_page(gfp_mask);
+}