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From: Johannes Weiner <hannes@cmpxchg.org>
To: Hugh Dickins <hughd@google.com>
Cc: Andrew Morton <akpm@linux-foundation.org>,
	Alex Shi <alex.shi@linux.alibaba.com>,
	Michal Hocko <mhocko@suse.com>,
	Mike Kravetz <mike.kravetz@oracle.com>,
	Shakeel Butt <shakeelb@google.com>,
	Matthew Wilcox <willy@infradead.org>, Qian Cai <cai@lca.pw>,
	linux-kernel@vger.kernel.org, linux-mm@kvack.org
Subject: Re: [PATCH 2/5] mm: migration of hugetlbfs page skip memcg
Date: Tue, 1 Sep 2020 11:02:32 -0400	[thread overview]
Message-ID: <20200901150232.GB45118@cmpxchg.org> (raw)
In-Reply-To: <alpine.LSU.2.11.2008301359460.5954@eggly.anvils>

On Sun, Aug 30, 2020 at 02:01:30PM -0700, Hugh Dickins wrote:
> hugetlbfs pages do not participate in memcg: so although they do find
> most of migrate_page_states() useful, it would be better if they did
> not call into mem_cgroup_migrate() - where Qian Cai reported that LTP's
> move_pages12 triggers the warning in Alex Shi's prospective commit
> "mm/memcg: warning on !memcg after readahead page charged".
> 
> Signed-off-by: Hugh Dickins <hughd@google.com>

Acked-by: Johannes Weiner <hannes@cmpxch.org>


  parent reply	other threads:[~2020-09-01 15:34 UTC|newest]

Thread overview: 17+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-08-30 20:57 [PATCH 0/5] mm: fixes to past from future testing Hugh Dickins
2020-08-30 20:59 ` [PATCH 1/5] ksm: reinstate memcg charge on copied pages Hugh Dickins
2020-08-31 14:40   ` Shakeel Butt
2020-09-01 15:01   ` Johannes Weiner
2020-08-30 21:01 ` [PATCH 2/5] mm: migration of hugetlbfs page skip memcg Hugh Dickins
2020-08-31 14:40   ` Shakeel Butt
2020-09-01 15:02   ` Johannes Weiner [this message]
2020-08-30 21:08 ` [PATCH 4/5] mm: fix check_move_unevictable_pages() on THP Hugh Dickins
2020-08-31 14:44   ` Shakeel Butt
2020-09-01  2:04   ` Alex Shi
2020-09-01  3:59     ` Hugh Dickins
2020-09-01 15:57   ` Yang Shi
2020-08-30 21:09 ` [PATCH 5/5] mlock: fix unevictable_pgs event counts " Hugh Dickins
2020-08-31 14:45   ` Shakeel Butt
2020-09-01 15:41   ` Yang Shi
2020-09-01  2:28 ` [PATCH 0/5] mm: fixes to past from future testing Alex Shi
2020-09-01  4:08   ` Hugh Dickins

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