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-rw-r--r--mm/slub.c11
1 files changed, 6 insertions, 5 deletions
diff --git a/mm/slub.c b/mm/slub.c
index 5df8c8302784..5fc052a4f38f 100644
--- a/mm/slub.c
+++ b/mm/slub.c
@@ -5167,10 +5167,9 @@ static int calculate_sizes(struct kmem_cache *s)
*/
s->inuse = size;
- if (slub_debug_orig_size(s) ||
- (flags & (SLAB_TYPESAFE_BY_RCU | SLAB_POISON)) ||
- ((flags & SLAB_RED_ZONE) && s->object_size < sizeof(void *)) ||
- s->ctor) {
+ if ((flags & (SLAB_TYPESAFE_BY_RCU | SLAB_POISON)) || s->ctor ||
+ ((flags & SLAB_RED_ZONE) &&
+ (s->object_size < sizeof(void *) || slub_debug_orig_size(s)))) {
/*
* Relocate free pointer after the object if it is not
* permitted to overwrite the first word of the object on
@@ -5178,7 +5177,9 @@ static int calculate_sizes(struct kmem_cache *s)
*
* This is the case if we do RCU, have a constructor or
* destructor, are poisoning the objects, or are
- * redzoning an object smaller than sizeof(void *).
+ * redzoning an object smaller than sizeof(void *) or are
+ * redzoning an object with slub_debug_orig_size() enabled,
+ * in which case the right redzone may be extended.
*
* The assumption that s->offset >= s->inuse means free
* pointer is outside of the object is used in the