From: Yang Shi <yang.shi@linux.alibaba.com>
To: Mel Gorman <mgorman@techsingularity.net>,
Michal Hocko <mhocko@suse.com>,
Andrew Morton <akpm@linux-foundation.org>
Cc: "linux-mm@kvack.org" <linux-mm@kvack.org>,
linux-kernel <linux-kernel@vger.kernel.org>
Subject: Re: [HELP] How to get task_struct from mm
Date: Thu, 30 May 2019 15:26:44 +0800 [thread overview]
Message-ID: <aa26006e-eec7-73f1-e111-6e2c2090d244@linux.alibaba.com> (raw)
In-Reply-To: <5cf71366-ba01-8ef0-3dbd-c9fec8a2b26f@linux.alibaba.com>
On 5/30/19 2:57 PM, Yang Shi wrote:
> Hi folks,
>
>
> As what we discussed about page demotion for PMEM at LSF/MM, the
> demotion should respect to the mempolicy and allowed mems of the
> process which the page (anonymous page only for now) belongs to.
>
>
> The vma that the page is mapped to can be retrieved from rmap walk
> easily, but we need know the task_struct that the vma belongs to. It
> looks there is not such API, and container_of seems not work with
> pointer member.
>
>
> Any suggestion?
mm->owner is defined for CONFIG_MEMCG only, I'm wondering whether we can
extend this to !CONFIG_MEMCG case or not?
>
>
> Thanks,
>
> Yang
>
next prev parent reply other threads:[~2019-05-30 7:27 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-05-30 6:57 [HELP] How to get task_struct from mm Yang Shi
2019-05-30 7:26 ` Yang Shi [this message]
2019-05-30 15:41 ` Michal Hocko
2019-05-31 12:51 ` Yang Shi
2019-05-31 13:56 ` Michal Hocko
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