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

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Message-Id: <1592472225-22768-1-git-send-email-foersleo@amazon.com>
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,
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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>