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Date:   Wed, 09 Jan 2019 16:36:36 +0530
From:   Arun KS <arunks@...eaurora.org>
To:     Michal Hocko <mhocko@...nel.org>
Cc:     Alexander Duyck <alexander.h.duyck@...ux.intel.com>,
        arunks.linux@...il.com, akpm@...ux-foundation.org, vbabka@...e.cz,
        osalvador@...e.de, linux-kernel@...r.kernel.org,
        linux-mm@...ck.org, getarunks@...il.com
Subject: Re: [PATCH v7] mm/page_alloc.c: memory_hotplug: free pages as higher
 order

On 2019-01-09 16:27, Michal Hocko wrote:
> On Wed 09-01-19 16:12:48, Arun KS wrote:
> [...]
>> It will be called once per online of a section and the arg value is 
>> always
>> set to 0 while entering online_pages_range.
> 
> You rare right that this will be the case in the most simple scenario.
> But the point is that the callback can be called several times from
> walk_system_ram_range and then your current code wouldn't work 
> properly.

Thanks. Will use +=

Regards,
Arun

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