From 033fd1bd3c50fdda267d27d02f9bc656f0b9ddb8 Mon Sep 17 00:00:00 2001
From: Wei Yang <weiyang@linux.vnet.ibm.com>
Date: Thu, 5 Nov 2015 18:45:48 -0800
Subject: [PATCH] mm/slub: use get_order() instead of fls()
get_order() is more easy to understand.
This patch just replaces it.
Signed-off-by: Wei Yang <weiyang@linux.vnet.ibm.com>
Cc: Christoph Lameter <cl@linux.com>
Cc: David Rientjes <rientjes@google.com>
Cc: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Reviewed-by: Pekka Enberg <penberg@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
mm/slub.c | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)
diff --git a/mm/slub.c b/mm/slub.c
index a94b9f46261b02..e309ed140fd18c 100644
--- a/mm/slub.c
+++ b/mm/slub.c
@@ -2912,8 +2912,7 @@ static inline int slab_order(int size, int min_objects,
if (order_objects(min_order, size, reserved) > MAX_OBJS_PER_PAGE)
return get_order(size * MAX_OBJS_PER_PAGE) - 1;
- for (order = max(min_order,
- fls(min_objects * size - 1) - PAGE_SHIFT);
+ for (order = max(min_order, get_order(min_objects * size));
order <= max_order; order++) {
unsigned long slab_size = PAGE_SIZE << order;
--
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