linux-kernel - Re: [PATCH -next v4] mm/hotplug: silence a lockdep splat with printk()

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Date:   Fri, 17 Jan 2020 14:42:21 +0100
From:   David Hildenbrand <david@...hat.com>
To:     Qian Cai <cai@....pw>
Cc:     akpm@...ux-foundation.org, mhocko@...nel.org,
        sergey.senozhatsky.work@...il.com, pmladek@...e.com,
        rostedt@...dmis.org, peterz@...radead.org, linux-mm@...ck.org,
        linux-kernel@...r.kernel.org, Michal Hocko <mhocko@...e.com>
Subject: Re: [PATCH -next v4] mm/hotplug: silence a lockdep splat with
 printk()

On 17.01.20 14:30, Qian Cai wrote:
> 
> 
>> On Jan 17, 2020, at 7:53 AM, David Hildenbrand <david@...hat.com> wrote:
>>
>> Can't we just use the zone_idx() stored in the memmap instead?
> 
> I am having a hard time to guess what that means. Care to elaborate?
> 

I was messing something up and thought for a second there would be a
ZONE_CMA :) It's really just the migratetype.

So yeah, a comment would be great.

-- 
Thanks,

David / dhildenb