[PATCH 1/1] mm/migrate: do not call prep_transhuge_page if !thp_migration_supported

[Andrea Reale]

new_page_nodemask in linux/migrate.h should not call prep_transhuge_page
if thp_migration_support is false.

Fixes commit 8135d8926c08 ("mm: memory_hotplug: memory hotremove supports
thp migration")

Signed-off-by: Andrea Reale <a...@linux.vnet.ibm.com>
---
 include/linux/migrate.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/include/linux/migrate.h b/include/linux/migrate.h
index 895ec0c..725eac5 100644
--- a/include/linux/migrate.h
+++ b/include/linux/migrate.h
@@ -54,7 +54,7 @@ static inline struct page *new_page_nodemask(struct page 
*page,
        new_page = __alloc_pages_nodemask(gfp_mask, order,
                                preferred_nid, nodemask);
 
-       if (new_page && PageTransHuge(page))
+       if (thp_migration_supported() && new_page && PageTransHuge(page))
                prep_transhuge_page(new_page);
 
        return new_page;
-- 
2.7.4