Re: [PATCH -mm] slab: use cgroup ino for naming per memcg caches

From: Christoph Lameter
Date: Wed Apr 08 2015 - 14:24:34 EST

On Wed, 8 Apr 2015, Vladimir Davydov wrote:

> 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.

The point of the unique name creation is to not have to use the name given
by the user for the slab. You can generate a unique identifier and use
that as a target for the symlink.

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