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-rw-r--r--mm/slab_common.c56
1 files changed, 29 insertions, 27 deletions
diff --git a/mm/slab_common.c b/mm/slab_common.c
index d00cd3f0f8ac..10f127b2de7c 100644
--- a/mm/slab_common.c
+++ b/mm/slab_common.c
@@ -276,6 +276,35 @@ static inline void memcg_unlink_cache(struct kmem_cache *s)
#endif /* CONFIG_MEMCG && !CONFIG_SLOB */
/*
+ * Figure out what the alignment of the objects will be given a set of
+ * flags, a user specified alignment and the size of the objects.
+ */
+static unsigned long calculate_alignment(unsigned long flags,
+ unsigned long align, unsigned long size)
+{
+ /*
+ * If the user wants hardware cache aligned objects then follow that
+ * suggestion if the object is sufficiently large.
+ *
+ * The hardware cache alignment cannot override the specified
+ * alignment though. If that is greater then use it.
+ */
+ if (flags & SLAB_HWCACHE_ALIGN) {
+ unsigned long ralign;
+
+ ralign = cache_line_size();
+ while (size <= ralign / 2)
+ ralign /= 2;
+ align = max(align, ralign);
+ }
+
+ if (align < ARCH_SLAB_MINALIGN)
+ align = ARCH_SLAB_MINALIGN;
+
+ return ALIGN(align, sizeof(void *));
+}
+
+/*
* Find a mergeable slab cache
*/
int slab_unmergeable(struct kmem_cache *s)
@@ -348,33 +377,6 @@ struct kmem_cache *find_mergeable(size_t size, size_t align,
return NULL;
}
-/*
- * Figure out what the alignment of the objects will be given a set of
- * flags, a user specified alignment and the size of the objects.
- */
-unsigned long calculate_alignment(slab_flags_t flags,
- unsigned long align, unsigned long size)
-{
- /*
- * If the user wants hardware cache aligned objects then follow that
- * suggestion if the object is sufficiently large.
- *
- * The hardware cache alignment cannot override the specified
- * alignment though. If that is greater then use it.
- */
- if (flags & SLAB_HWCACHE_ALIGN) {
- unsigned long ralign = cache_line_size();
- while (size <= ralign / 2)
- ralign /= 2;
- align = max(align, ralign);
- }
-
- if (align < ARCH_SLAB_MINALIGN)
- align = ARCH_SLAB_MINALIGN;
-
- return ALIGN(align, sizeof(void *));
-}
-
static struct kmem_cache *create_cache(const char *name,
size_t object_size, size_t size, size_t align,
slab_flags_t flags, size_t useroffset,