linux-kernel - Re: [patch] Revert "page-writeback.c: subtract min_free

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Message-ID: <20130725233013.GC27252@bbox>
Date:	Fri, 26 Jul 2013 08:30:13 +0900
From:	Minchan Kim <minchan@...nel.org>
To:	Johannes Weiner <hannes@...xchg.org>
Cc:	Andrew Morton <akpm@...ux-foundation.org>,
	Paul Szabo <psz@...hs.usyd.edu.au>,
	Rik van Riel <riel@...hat.com>, linux-mm@...ck.org,
	linux-kernel@...r.kernel.org
Subject: Re: [patch] Revert "page-writeback.c: subtract min_free_kbytes from
 dirtyable memory"

On Thu, Jul 25, 2013 at 06:58:54PM -0400, Johannes Weiner wrote:
> This reverts commit 75f7ad8e043d9383337d917584297f7737154bbf.  It was
> the result of a problem observed with a 3.2 kernel and merged in 3.9,
> while the issue had been resolved upstream in 3.3 (ab8fabd mm: exclude
> reserved pages from dirtyable memory).
> 
> The "reserved pages" are a superset of min_free_kbytes, thus this
> change is redundant and confusing.  Revert it.
> 
> Signed-off-by: Johannes Weiner <hannes@...xchg.org>

Absolutely true and I pointed it out at that time but ignored and merged. :(
http://lists.debian.org/debian-kernel/2013/01/msg00538.html
Even, not Cced so I couldn't notice it until you send out this patch.

Acked-by: Minchan Kim <minchan@...nel.org>

-- 
Kind regards,
Minchan Kim
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