Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) client-ip=2620:137:e000::1:20;
Message-ID: <262052c8-c03c-24c4-9163-5df8e9f312be@bytedance.com>
Date:   Fri, 9 Sep 2022 11:00:57 +0800
MIME-Version: 1.0
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:91.0) Gecko/20100101
 Thunderbird/91.13.0
Subject: Re: [Phishing Risk] Re: [Phishing Risk] Re: [Phishing Risk]
 [External] Re: [PATCH] cgroup/cpuset: Add a new isolated mems.policy type.
To:     Tejun Heo <tj@kernel.org>
Cc:     lizefan.x@bytedance.com, hannes@cmpxchg.org,
        cgroups@vger.kernel.org, linux-kernel@vger.kernel.org
References: <20220902063303.1057-1-hezhongkun.hzk@bytedance.com>
 <YxT/liaotbiOod51@slm.duckdns.org>
 <c05bdeac-b354-0ac7-3233-27f8e5cbb38a@bytedance.com>
 <YxeBGeOaQxvlPLzo@slm.duckdns.org>
 <d323bd95-476b-0901-855e-14c8796d1b23@bytedance.com>
 <Yxi4EYxMaPNkL+of@slm.duckdns.org>
From:   Zhongkun He <hezhongkun.hzk@bytedance.com>
In-Reply-To: <Yxi4EYxMaPNkL+of@slm.duckdns.org>
Content-Type: text/plain; charset=UTF-8; format=flowed
Content-Transfer-Encoding: 7bit
Precedence: bulk

Hi Tejun,
> Hello,
> 
> On Wed, Sep 07, 2022 at 08:06:30PM +0800, Zhongkun He wrote:
>> It would be better if one process had a way to dynamically modify the
>> mempolicy of another process. But unfortunately there is no interface or
>> system call to do that in userspace.
> 
> If you need to change the properties dynamically, I suggest adding this as a
> dynamic per-process interface first. That's more generic and useful for more
> cases.
> 
> Thanks.

Got it, thanks for your suggestion and reply.