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-rw-r--r--mm/slub.c11
1 files changed, 7 insertions, 4 deletions
diff --git a/mm/slub.c b/mm/slub.c
index a96e11c77fd9..96d63eb3ab17 100644
--- a/mm/slub.c
+++ b/mm/slub.c
@@ -1856,12 +1856,15 @@ static unsigned long calculate_alignment(unsigned long flags,
* The hardware cache alignment cannot override the specified
* alignment though. If that is greater then use it.
*/
- if ((flags & SLAB_HWCACHE_ALIGN) &&
- size > cache_line_size() / 2)
- return max_t(unsigned long, align, cache_line_size());
+ 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)
- return ARCH_SLAB_MINALIGN;
+ align = ARCH_SLAB_MINALIGN;
return ALIGN(align, sizeof(void *));
}