linux-kernel - Re: [PATCH v2 5/5] mm: memcg: convert enum res_type to mem_counter

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Message-ID: <ZqGUIzP_KuR9KaX0@google.com>
Date: Wed, 24 Jul 2024 23:54:11 +0000
From: Roman Gushchin <roman.gushchin@...ux.dev>
To: Shakeel Butt <shakeel.butt@...ux.dev>
Cc: Andrew Morton <akpm@...ux-foundation.org>, linux-mm@...ck.org,
	linux-kernel@...r.kernel.org, Johannes Weiner <hannes@...xchg.org>,
	Michal Hocko <mhocko@...nel.org>,
	Muchun Song <muchun.song@...ux.dev>
Subject: Re: [PATCH v2 5/5] mm: memcg: convert enum res_type to
 mem_counter_type

On Wed, Jul 24, 2024 at 04:48:47PM -0700, Shakeel Butt wrote:
> On Wed, Jul 24, 2024 at 08:21:03PM GMT, Roman Gushchin wrote:
> > The res_type enum is listing all types of memory tracked by memory
> > cgroups: generic memory, swap, kernel memory, tcp etc; and it's
> > currently used only for dealing with corresponding sysfs files.
> > 
> > To prepare for tracking of various types of memory by a single
> > page_counter structure, a similar enumeration is needed. Instead
> > of introducing a completely new enumeration, let's re-purpose
> > the existing one: rename it into mem_counter_type, change items
> > names to be more meaningful and move to page_counter.h. The latter
> > is needed to have the total number of different memory types
> > available.
> > 
> > This change doesn't bring any functional difference, it's a pure
> > refactoring.
> > 
> > Signed-off-by: Roman Gushchin <roman.gushchin@...ux.dev>
> 
> Acked-by: Shakeel Butt <shakeel.butt@...ux.dev>

Thank you for reviewing the series!