Re: [PATCH-next v2] mm, memcg: Add ":deact" tag for reparented kmem caches in memcg_slabinfo

[David Rientjes]

On Thu, 27 Jun 2019, Waiman Long wrote:

> With Roman's kmem cache reparent patch, multiple kmem caches of the same
> type can be seen attached to the same memcg id. All of them, except
> maybe one, are reparent'ed kmem caches. It can be useful to tag those
> reparented caches by adding a new slab flag "SLAB_DEACTIVATED" to those
> kmem caches that will be reparent'ed if it cannot be destroyed completely.
> 
> For the reparent'ed memcg kmem caches, the tag ":deact" will now be
> shown in <debugfs>/memcg_slabinfo.
> 
> [v2: Set the flag in the common code as suggested by Roman.]
> 
> Signed-off-by: Waiman Long <longman@xxxxxxxxxx>
> Reviewed-by: Shakeel Butt <shakeelb@xxxxxxxxxx>
> Acked-by: Roman Gushchin <guro@xxxxxx>

Acked-by: David Rientjes <rientjes@xxxxxxxxxx>