linux-kernel - Re: [PATCH v14 2/6] mm: Use zone and order instead of free area in free

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Date:   Wed, 27 Nov 2019 13:54:16 +0000
From:   Mel Gorman <mgorman@...hsingularity.net>
To:     Alexander Duyck <alexander.duyck@...il.com>
Cc:     kvm@...r.kernel.org, mst@...hat.com, linux-kernel@...r.kernel.org,
        willy@...radead.org, mhocko@...nel.org, linux-mm@...ck.org,
        akpm@...ux-foundation.org, vbabka@...e.cz, yang.zhang.wz@...il.com,
        nitesh@...hat.com, konrad.wilk@...cle.com, david@...hat.com,
        pagupta@...hat.com, riel@...riel.com, lcapitulino@...hat.com,
        dave.hansen@...el.com, wei.w.wang@...el.com, aarcange@...hat.com,
        pbonzini@...hat.com, dan.j.williams@...el.com,
        alexander.h.duyck@...ux.intel.com, osalvador@...e.de
Subject: Re: [PATCH v14 2/6] mm: Use zone and order instead of free area in
 free_list manipulators

On Tue, Nov 19, 2019 at 01:46:26PM -0800, Alexander Duyck wrote:
> From: Alexander Duyck <alexander.h.duyck@...ux.intel.com>
> 
> In order to enable the use of the zone from the list manipulator functions
> I will need access to the zone pointer. As it turns out most of the
> accessors were always just being directly passed &zone->free_area[order]
> anyway so it would make sense to just fold that into the function itself
> and pass the zone and order as arguments instead of the free area.
> 
> In order to be able to reference the zone we need to move the declaration
> of the functions down so that we have the zone defined before we define the
> list manipulation functions. Since the functions are only used in the file
> mm/page_alloc.c we can just move them there to reduce noise in the header.
> 
> Reviewed-by: Dan Williams <dan.j.williams@...el.com>
> Reviewed-by: David Hildenbrand <david@...hat.com>
> Reviewed-by: Pankaj Gupta <pagupta@...hat.com>
> Signed-off-by: Alexander Duyck <alexander.h.duyck@...ux.intel.com>

Acked-by: Mel Gorman <mgorman@...hsingularity.net>

-- 
Mel Gorman
SUSE Labs