Re: [PATCH v4 3/3] mm: memcg/slab: Disable cache merging for KMALLOC_NORMAL caches

[Roman Gushchin]

On Wed, May 05, 2021 at 04:06:10PM -0400, Waiman Long wrote:
> The KMALLOC_NORMAL (kmalloc-<n>) caches are for unaccounted objects only
> when CONFIG_MEMCG_KMEM is enabled. To make sure that this condition
> remains true, we will have to prevent KMALOC_NORMAL caches to merge
> with other kmem caches. This is now done by setting its refcount to -1
> right after its creation.
> 
> Suggested-by: Roman Gushchin <guro@xxxxxx>
> Signed-off-by: Waiman Long <longman@xxxxxxxxxx>

Acked-by: Roman Gushchin <guro@xxxxxx>