From: Aneesh Kumar K V <aneesh.kumar@linux.ibm.com>
To: Feng Tang <feng.tang@intel.com>,
Andrew Morton <akpm@linux-foundation.org>,
Johannes Weiner <hannes@cmpxchg.org>,
Michal Hocko <mhocko@suse.com>, Tejun Heo <tj@kernel.org>,
Zefan Li <lizefan.x@bytedance.com>,
Waiman Long <longman@redhat.com>,
ying.huang@intel.com, linux-mm@kvack.org,
cgroups@vger.kernel.org
Cc: linux-kernel@vger.kernel.org, dave.hansen@intel.com,
tim.c.chen@intel.com, fengwei.yin@intel.com
Subject: Re: [PATCH] mm/vmscan: respect cpuset policy during page demotion
Date: Wed, 26 Oct 2022 13:19:48 +0530 [thread overview]
Message-ID: <dc453287-015d-fd1c-fe7f-6ee45772d6aa@linux.ibm.com> (raw)
In-Reply-To: <20221026074343.6517-1-feng.tang@intel.com>
On 10/26/22 1:13 PM, Feng Tang wrote:
> In page reclaim path, memory could be demoted from faster memory tier
> to slower memory tier. Currently, there is no check about cpuset's
> memory policy, that even if the target demotion node is not allowd
> by cpuset, the demotion will still happen, which breaks the cpuset
> semantics.
>
> So add cpuset policy check in the demotion path and skip demotion
> if the demotion targets are not allowed by cpuset.
>
What about the vma policy or the task memory policy? Shouldn't we respect
those memory policy restrictions while demoting the page?
-aneesh
next prev parent reply other threads:[~2022-10-26 7:51 UTC|newest]
Thread overview: 49+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-10-26 7:43 Feng Tang
2022-10-26 7:49 ` Aneesh Kumar K V [this message]
2022-10-26 8:00 ` Feng Tang
2022-10-26 9:19 ` Michal Hocko
2022-10-26 10:42 ` Aneesh Kumar K V
2022-10-26 11:02 ` Michal Hocko
2022-10-26 12:08 ` Aneesh Kumar K V
2022-10-26 12:21 ` Michal Hocko
2022-10-26 12:35 ` Aneesh Kumar K V
2022-10-27 9:02 ` Michal Hocko
2022-10-27 10:16 ` Aneesh Kumar K V
2022-10-27 13:05 ` Michal Hocko
2022-10-26 12:20 ` Feng Tang
2022-10-26 15:59 ` Michal Hocko
2022-10-26 17:57 ` Yang Shi
2022-10-27 7:11 ` Feng Tang
2022-10-27 7:45 ` Huang, Ying
2022-10-27 7:51 ` Feng Tang
2022-10-27 17:55 ` Yang Shi
2022-10-28 3:37 ` Feng Tang
2022-10-28 5:54 ` Huang, Ying
2022-10-28 17:23 ` Yang Shi
2022-10-31 1:56 ` Huang, Ying
2022-10-31 2:19 ` Feng Tang
2022-10-28 5:09 ` Aneesh Kumar K V
2022-10-28 17:16 ` Yang Shi
2022-10-31 1:53 ` Huang, Ying
2022-10-27 6:47 ` Huang, Ying
2022-10-27 7:10 ` Michal Hocko
2022-10-27 7:39 ` Huang, Ying
2022-10-27 8:01 ` Michal Hocko
2022-10-27 9:31 ` Huang, Ying
2022-10-27 12:29 ` Michal Hocko
2022-10-27 23:22 ` Huang, Ying
2022-10-31 8:40 ` Michal Hocko
2022-10-31 8:51 ` Huang, Ying
2022-10-31 9:18 ` Michal Hocko
2022-10-31 14:09 ` Feng Tang
2022-10-31 14:32 ` Michal Hocko
2022-11-07 8:05 ` Feng Tang
2022-11-07 8:17 ` Michal Hocko
2022-11-01 3:17 ` Huang, Ying
2022-10-26 8:26 ` Yin, Fengwei
2022-10-26 8:37 ` Feng Tang
2022-10-26 14:36 ` Waiman Long
2022-10-27 5:57 ` Feng Tang
2022-10-27 5:13 ` Huang, Ying
2022-10-27 5:49 ` Feng Tang
2022-10-27 6:05 ` Huang, Ying
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