From: Wei Yang <richard.weiyang@gmail.com>
To: Michal Hocko <mhocko@suse.com>, hannes@cmpxchg.org
Cc: Wei Yang <richard.weiyang@gmail.com>,
vdavydov.dev@gmail.com, akpm@linux-foundation.org,
cgroups@vger.kernel.org, linux-mm@kvack.org
Subject: Re: [PATCH 3/3] mm/memcg: add next_mz back if not reclaimed yet
Date: Wed, 9 Mar 2022 00:46:20 +0000 [thread overview]
Message-ID: <20220309004620.fgotfh4wsquscbfn@master> (raw)
In-Reply-To: <YicRNofU+L1cKIQp@dhcp22.suse.cz>
On Tue, Mar 08, 2022 at 09:17:58AM +0100, Michal Hocko wrote:
>On Tue 08-03-22 01:20:47, Wei Yang wrote:
>> next_mz is removed from rb_tree, let's add it back if no reclaim has
>> been tried.
>
>Could you elaborate more why we need/want this?
>
Per my understanding, we add back the right most node even reclaim makes no
progress, so it is reasonable to add back a node if we didn't get a chance to
do reclaim on it.
It looks like we forget to add it back to the tree. Maybe Johannes know some
background why we don't add it back?
--
Wei Yang
Help you, Help me
next prev parent reply other threads:[~2022-03-09 0:46 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-03-08 1:20 [PATCH 1/3] mm/memcg: mz already removed from rb_tree in mem_cgroup_largest_soft_limit_node() Wei Yang
2022-03-08 1:20 ` [PATCH 2/3] mm/memcg: __mem_cgroup_remove_exceeded could handle a !on-tree mz properly Wei Yang
2022-03-08 1:20 ` [PATCH 3/3] mm/memcg: add next_mz back if not reclaimed yet Wei Yang
2022-03-08 8:17 ` Michal Hocko
2022-03-09 0:46 ` Wei Yang [this message]
2022-03-09 13:48 ` Michal Hocko
2022-03-10 1:13 ` Wei Yang
2022-03-10 8:53 ` Michal Hocko
2022-03-10 23:57 ` Wei Yang
2022-03-10 8:59 ` Michal Hocko
2022-03-10 23:55 ` Wei Yang
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