The patch titled
Subject: mm/slab.c: replace open-coded round-up code with ALIGN
has been added to the -mm tree. Its filename is
subject-mm-slab-trivial-change-to-replace-round-up-code-with-align.patch
This patch should soon appear at
http://ozlabs.org/~akpm/mmots/broken-out/subject-mm-slab-trivial-change-to-replace-round-up-code-with-align.patch
and later at
http://ozlabs.org/~akpm/mmotm/broken-out/subject-mm-slab-trivial-change-to-replace-round-up-code-with-align.patch
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------------------------------------------------------
From: Canjiang Lu <canjiang.lu@xxxxxxxxxxx>
Subject: mm/slab.c: replace open-coded round-up code with ALIGN
Link: http://lkml.kernel.org/r/20170616072918epcms5p4ff16c24ef8472b4c3b4371823cd87856@epcms5p4
Signed-off-by: Canjiang Lu <canjiang.lu@xxxxxxxxxxx>
Cc: Christoph Lameter <cl@xxxxxxxxx>
Cc: Pekka Enberg <penberg@xxxxxxxxxx>
Cc: David Rientjes <rientjes@xxxxxxxxxx>
Cc: Joonsoo Kim <iamjoonsoo.kim@xxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
mm/slab.c | 8 ++------
1 file changed, 2 insertions(+), 6 deletions(-)
diff -puN mm/slab.c~subject-mm-slab-trivial-change-to-replace-round-up-code-with-align mm/slab.c
--- a/mm/slab.c~subject-mm-slab-trivial-change-to-replace-round-up-code-with-align
+++ a/mm/slab.c
@@ -2040,17 +2040,13 @@ __kmem_cache_create (struct kmem_cache *
* 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 */
_
Patches currently in -mm which might be from canjiang.lu@xxxxxxxxxxx are
subject-mm-slab-trivial-change-to-replace-round-up-code-with-align.patch
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