Re: [PATCH] mm: memcontrol: fix slub memory accounting

From: Roman Gushchin
Date: Tue Feb 23 2021 - 10:39:12 EST


On Tue, Feb 23, 2021 at 05:24:23PM +0800, Muchun Song wrote:
> SLUB currently account kmalloc() and kmalloc_node() allocations larger
> than order-1 page per-node. But it forget to update the per-memcg
> vmstats. So it can lead to inaccurate statistics of "slab_unreclaimable"
> which is from memory.stat. Fix it by using mod_lruvec_page_state instead
> of mod_node_page_state.
>
> Fixes: 6a486c0ad4dc ("mm, sl[ou]b: improve memory accounting")
> Signed-off-by: Muchun Song <songmuchun@xxxxxxxxxxxxx>

Reviewed-by: Roman Gushchin <guro@xxxxxx>

Thanks!