[PATCH] mm/mm_init.c: use round_up() to align movable range

[Wei Yang <richard.weiyang@gmail.com>]

Since MAX_ORDER_NR_PAGES is power of 2, let's use a faster version.

Signed-off-by: Wei Yang <richard.weiyang@gmail.com>
---
 mm/mm_init.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/mm/mm_init.c b/mm/mm_init.c
index dec4084fe15a..99ef70a8b63c 100644
--- a/mm/mm_init.c
+++ b/mm/mm_init.c
@@ -438,7 +438,7 @@ static void __init find_zone_movable_pfns_for_nodes(void)
 		 * was requested by the user
 		 */
 		required_movablecore =
-			roundup(required_movablecore, MAX_ORDER_NR_PAGES);
+			round_up(required_movablecore, MAX_ORDER_NR_PAGES);
 		required_movablecore = min(totalpages, required_movablecore);
 		corepages = totalpages - required_movablecore;
 
@@ -549,7 +549,7 @@ static void __init find_zone_movable_pfns_for_nodes(void)
 		unsigned long start_pfn, end_pfn;
 
 		zone_movable_pfn[nid] =
-			roundup(zone_movable_pfn[nid], MAX_ORDER_NR_PAGES);
+			round_up(zone_movable_pfn[nid], MAX_ORDER_NR_PAGES);
 
 		get_pfn_range_for_nid(nid, &start_pfn, &end_pfn);
 		if (zone_movable_pfn[nid] >= end_pfn)
-- 
2.34.1