Hi Glauber,

FYI, there are new compile warnings show up in

tree:   git://git.kernel.org/pub/scm/linux/kernel/git/glommer/memcg.git kmemcg-slab
head:   f7dc2a43ce771e73443c82eb25d95f72f8161b45
commit: f57e5071017acca3f6a2cb67d9496764a0d12618 [32/33] slub: slub-specific propagation changes.
config: x86_64-randconfig-x214 (attached as .config)

All warnings:

mm/slub.c:3968:13: warning: 'memcg_propagate_slab_attrs' used but never defined [enabled by default]

vim +3968 mm/slub.c

81819f0f Christoph Lameter 2007-05-06  3952  		/*
81819f0f Christoph Lameter 2007-05-06  3953  		 * Adjust the object sizes so that we clear
81819f0f Christoph Lameter 2007-05-06  3954  		 * the complete object on kzalloc.
81819f0f Christoph Lameter 2007-05-06  3955  		 */
3b0efdfa Christoph Lameter 2012-06-13  3956  		s->object_size = max(s->object_size, (int)size);
81819f0f Christoph Lameter 2007-05-06  3957  		s->inuse = max_t(int, s->inuse, ALIGN(size, sizeof(void *)));
6446faa2 Christoph Lameter 2008-02-15  3958  
7b8f3b66 David Rientjes    2008-12-17  3959  		if (sysfs_slab_alias(s, name)) {
7b8f3b66 David Rientjes    2008-12-17  3960  			s->refcount--;
cbb79694 Christoph Lameter 2012-09-05  3961  			s = NULL;
7b8f3b66 David Rientjes    2008-12-17  3962  		}
a0e1d1be Christoph Lameter 2007-07-17  3963  	}
6446faa2 Christoph Lameter 2008-02-15  3964  
cbb79694 Christoph Lameter 2012-09-05  3965  	return s;
cbb79694 Christoph Lameter 2012-09-05  3966  }
84c1cf62 Pekka Enberg      2010-09-14  3967  
f57e5071 Glauber Costa     2012-07-26 @3968  static void memcg_propagate_slab_attrs(struct kmem_cache *s);
f57e5071 Glauber Costa     2012-07-26  3969  
8a13a4cc Christoph Lameter 2012-09-04  3970  int __kmem_cache_create(struct kmem_cache *s, unsigned long flags)
cbb79694 Christoph Lameter 2012-09-05  3971  {
aac3a166 Pekka Enberg      2012-09-05  3972  	int err;
20cea968 Christoph Lameter 2012-07-06  3973  
aac3a166 Pekka Enberg      2012-09-05  3974  	err = kmem_cache_open(s, flags);
aac3a166 Pekka Enberg      2012-09-05  3975  	if (err)
aac3a166 Pekka Enberg      2012-09-05  3976  		return err;

---
0-DAY kernel build testing backend         Open Source Technology Center
Fengguang Wu, Yuanhan Liu                              Intel Corporation