On Wed, Apr 08, 2015 at 08:46:22AM -0500, Christoph Lameter wrote: > On Wed, 8 Apr 2015, Vladimir Davydov wrote: > > > has its own copy of kmem cache. What if we decide to share the same kmem > > cache among all memory cgroups one day? Of course, this will hardly ever > > happen, but it is an alternative approach to implementing the same > > /sys/kernel/slab already supports the use of symlinks. And both SLAB and > SLUB do slab merging which means effectively an aliasing of multiple slab > caches to the same name. Yeah, I think cache merging is a good argument for grouping memcg caches under /sys/kernel/slab/<slab-name>/cgroup/. We cannot maintain symlinks for merged memcg caches, because when a memcg cache is created we do not have names of caches the new cache is merged with. If memcg caches were listed under /sys/kernel/slab/ along with global ones, absence of the symlinks would lead to confusion. Thanks, Vladimir -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxx. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>