linux-kernel - Re: [PATCH 15/18] mm: memcontrol: make swap tracking an integral part of memory control

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Date:   Wed, 22 Apr 2020 21:43:13 +0800
From:   Alex Shi <alex.shi@...ux.alibaba.com>
To:     Johannes Weiner <hannes@...xchg.org>
Cc:     Joonsoo Kim <js1304@...il.com>, Shakeel Butt <shakeelb@...gle.com>,
        Hugh Dickins <hughd@...gle.com>,
        Michal Hocko <mhocko@...e.com>,
        "Kirill A. Shutemov" <kirill@...temov.name>,
        Roman Gushchin <guro@...com>, linux-mm@...ck.org,
        cgroups@...r.kernel.org, linux-kernel@...r.kernel.org,
        kernel-team@...com
Subject: Re: [PATCH 15/18] mm: memcontrol: make swap tracking an integral part
 of memory control



在 2020/4/22 下午9:30, Johannes Weiner 写道:
>> Also as to the RSS account name change, I don't know if it's good to polish
>> them in docs.
> I didn't actually change anything user-visible, just the internal name
> of the counters:
> 
> static const unsigned int memcg1_stats[] = {
> 	NR_FILE_PAGES,		/* was MEMCG_CACHE */
> 	NR_ANON_MAPPED,		/* was MEMCG_RSS */
> 	NR_ANON_THPS,		/* was MEMCG_RSS_HUGE */
> 	NR_SHMEM,
> 	NR_FILE_MAPPED,
> 	NR_FILE_DIRTY,
> 	NR_WRITEBACK,
> 	MEMCG_SWAP,
> };
> 
> static const char *const memcg1_stat_names[] = {
> 	"cache",
> 	"rss",
> 	"rss_huge",
> 	"shmem",
> 	"mapped_file",
> 	"dirty",
> 	"writeback",
> 	"swap",
> };
> 
> Or did you refer to something else?

With about 'was MEMCG_RSS' etc. I believe curious user would know where
the concept from. :)

Thanks for this comments!
Aelx