linux-kernel - Re: [PATCH v16 05/14] mm/damon: Allow dynamic monitoring target regions update

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:   Thu, 18 Jun 2020 11:23:45 +0200
From:   Leonard Foerster <foersleo@...zon.com>
To:     SeongJae Park <sjpark@...zon.com>
Cc:     akpm@...ux-foundation.org, SeongJae Park <sjpark@...zon.de>,
        Jonathan.Cameron@...wei.com, aarcange@...hat.com, acme@...nel.org,
        alexander.shishkin@...ux.intel.com, amit@...nel.org,
        benh@...nel.crashing.org, brendan.d.gregg@...il.com,
        brendanhiggins@...gle.com, cai@....pw, colin.king@...onical.com,
        corbet@....net, dwmw@...zon.com, foersleo@...zon.de,
        irogers@...gle.com, jolsa@...hat.com, kirill@...temov.name,
        mark.rutland@....com, mgorman@...e.de, minchan@...nel.org,
        mingo@...hat.com, namhyung@...nel.org, peterz@...radead.org,
        rdunlap@...radead.org, riel@...riel.com, rientjes@...gle.com,
        rostedt@...dmis.org, sblbir@...zon.com, shakeelb@...gle.com,
        shuah@...nel.org, sj38.park@...il.com, snu@...zon.de,
        vbabka@...e.cz, vdavydov.dev@...il.com, yang.shi@...ux.alibaba.com,
        ying.huang@...el.com, david@...hat.com, linux-damon@...zon.com,
        linux-mm@...ck.org, linux-doc@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH v16 05/14] mm/damon: Allow dynamic monitoring target regions update

On 2020-06-15T18:19:18+02:00 SeongJae Park <sjpark@...zon.com> wrote:

> From: SeongJae Park <sjpark@...zon.de>
> 
> The monitoring target regions can be dynamically changed.  For example,
> virtual memory mapping could be dynamically updated and physical memory
> could be hot-plugged.
> 
> To handle such cases, this commit adds a monitoring attribute, ``regions
> update interval`` and a callback ``init_target_regions`` in the
> monitoring context.  If the two fields are properly set, DAMON will call
> the ``init_target_regions()`` callback for every ``regions update
> interval``.  In the callback, users can check current memory mapping or
> hotplugged physical memory sections and appropriately update the
> monitoring target regions of the context.
> 
> Signed-off-by: SeongJae Park <sjpark@...zon.de>
> ---

Reviewed-by: Leonard Foerster <foersleo@...zon.de>