Subject: [PATCH] mm/slab: trivial change to replace round-up code with ALIGN

[陆灿江]

This patch makes use of ALIGN() to remove duplicate round-up code.

Signed-off-by: Canjiang Lu <canjiang...@samsung.com>
---
 mm/slab.c | 8 ++------
 1 file changed, 2 insertions(+), 6 deletions(-)

diff --git a/mm/slab.c b/mm/slab.c
index 807d86c..69e08a4 100644
--- a/mm/slab.c
+++ b/mm/slab.c
@@ -2040,17 +2040,13 @@ static bool set_on_slab_cache(struct kmem_cache *cachep,
         * unaligned accesses for some archs when redzoning is used, and makes
         * sure any on-slab bufctl's are also correctly aligned.
         */
-       if (size & (BYTES_PER_WORD - 1)) {
-               size += (BYTES_PER_WORD - 1);
-               size &= ~(BYTES_PER_WORD - 1);
-       }
+       size = ALIGN(size, BYTES_PER_WORD);
 
        if (flags & SLAB_RED_ZONE) {
                ralign = REDZONE_ALIGN;
                /* If redzoning, ensure that the second redzone is suitably
                 * aligned, by adjusting the object size accordingly. */
-               size += REDZONE_ALIGN - 1;
-               size &= ~(REDZONE_ALIGN - 1);
+               size = ALIGN(size, REDZONE_ALIGN);
        }
 
        /* 3) caller mandated alignment */
-- 
1.9.1