linux-kernel - Re: [RFC v4 2/7] mm/damon: Account age of target regions

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Message-ID: <221dab45ed46405b707825455086855665ead7cc.camel@surriel.com>
Date:   Wed, 04 Mar 2020 10:21:29 -0500
From:   Rik van Riel <riel@...riel.com>
To:     SeongJae Park <sjpark@...zon.com>, akpm@...ux-foundation.org
Cc:     SeongJae Park <sjpark@...zon.de>, aarcange@...hat.com,
        acme@...nel.org, alexander.shishkin@...ux.intel.com,
        amit@...nel.org, brendan.d.gregg@...il.com,
        brendanhiggins@...gle.com, cai@....pw, colin.king@...onical.com,
        corbet@....net, dwmw@...zon.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, rientjes@...gle.com,
        rostedt@...dmis.org, shuah@...nel.org, sj38.park@...il.com,
        vbabka@...e.cz, vdavydov.dev@...il.com, yang.shi@...ux.alibaba.com,
        ying.huang@...el.com, linux-mm@...ck.org,
        linux-doc@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [RFC v4 2/7] mm/damon: Account age of target regions

On Tue, 2020-03-03 at 13:14 +0100, SeongJae Park wrote:
> From: SeongJae Park <sjpark@...zon.de>

> --- a/mm/damon.c
> +++ b/mm/damon.c
> @@ -87,6 +87,10 @@ static struct damon_region
> *damon_new_region(struct damon_ctx *ctx,
>  	ret->sampling_addr = damon_rand(ctx, vm_start, vm_end);
>  	INIT_LIST_HEAD(&ret->list);
>  
> +	ret->age = 0;
> +	ret->last_vm_start = vm_start;
> +	ret->last_vm_end = vm_end;

Wait, what tree is this supposed to apply against?

I see no mm/damon.c file in current Linus upstream.

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