linux-kernel - Re: [PATCH] Revert "mm/cma: manage the memory of the CMA area by using the ZONE

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Message-ID: <8a672075-e188-0e72-6e48-dbec4583ef92@suse.cz>
Date:   Thu, 17 May 2018 15:15:22 +0200
From:   Vlastimil Babka <vbabka@...e.cz>
To:     Ville Syrjala <ville.syrjala@...ux.intel.com>,
        Joonsoo Kim <iamjoonsoo.kim@....com>
Cc:     "Aneesh Kumar K . V" <aneesh.kumar@...ux.vnet.ibm.com>,
        Tony Lindgren <tony@...mide.com>,
        Johannes Weiner <hannes@...xchg.org>,
        Laura Abbott <lauraa@...eaurora.org>,
        Marek Szyprowski <m.szyprowski@...sung.com>,
        Mel Gorman <mgorman@...hsingularity.net>,
        Michal Hocko <mhocko@...e.com>,
        Michal Nazarewicz <mina86@...a86.com>,
        Minchan Kim <minchan@...nel.org>,
        Rik van Riel <riel@...hat.com>,
        Russell King <linux@...linux.org.uk>,
        Will Deacon <will.deacon@....com>,
        Andrew Morton <akpm@...ux-foundation.org>,
        Linus Torvalds <torvalds@...ux-foundation.org>,
        linux-mm@...ck.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] Revert "mm/cma: manage the memory of the CMA area by
 using the ZONE_MOVABLE"

On 05/17/2018 02:59 PM, Ville Syrjala wrote:
> From: Ville Syrjälä <ville.syrjala@...ux.intel.com>
> 
> This reverts commit bad8c6c0b1144694ecb0bc5629ede9b8b578b86e.
> 
> Make x86 with HIGHMEM=y and CMA=y boot again.

Um, any more details? This looks rather rash IMHO. Or was there some
previous discussion I haven't seen? We are at rc5 so it can still be
fixed rather than reverted?

> Cc: Joonsoo Kim <iamjoonsoo.kim@....com>
> Cc: Aneesh Kumar K.V <aneesh.kumar@...ux.vnet.ibm.com>
> Cc: Tony Lindgren <tony@...mide.com>
> Cc: Vlastimil Babka <vbabka@...e.cz>
> Cc: Johannes Weiner <hannes@...xchg.org>
> Cc: Laura Abbott <lauraa@...eaurora.org>
> Cc: Marek Szyprowski <m.szyprowski@...sung.com>
> Cc: Mel Gorman <mgorman@...hsingularity.net>
> Cc: Michal Hocko <mhocko@...e.com>
> Cc: Michal Nazarewicz <mina86@...a86.com>
> Cc: Minchan Kim <minchan@...nel.org>
> Cc: Rik van Riel <riel@...hat.com>
> Cc: Russell King <linux@...linux.org.uk>
> Cc: Will Deacon <will.deacon@....com>
> Cc: Andrew Morton <akpm@...ux-foundation.org>
> Cc: Linus Torvalds <torvalds@...ux-foundation.org>
> Cc: linux-mm@...ck.org
> Cc: linux-kernel@...r.kernel.org
> Signed-off-by: Ville Syrjälä <ville.syrjala@...ux.intel.com>