linux-kernel - Re: [PATCH v9 4/8] mm,memory_hotplug: Allocate memmap from the added memory range

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Message-ID: <20210421084641.GG22456@linux>
Date:   Wed, 21 Apr 2021 10:46:41 +0200
From:   Oscar Salvador <osalvador@...e.de>
To:     Michal Hocko <mhocko@...e.com>
Cc:     Andrew Morton <akpm@...ux-foundation.org>,
        David Hildenbrand <david@...hat.com>,
        Anshuman Khandual <anshuman.khandual@....com>,
        Pavel Tatashin <pasha.tatashin@...een.com>,
        Vlastimil Babka <vbabka@...e.cz>, linux-mm@...ck.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH v9 4/8] mm,memory_hotplug: Allocate memmap from the added
 memory range

On Wed, Apr 21, 2021 at 10:39:16AM +0200, Michal Hocko wrote:
> Not that I would insist but I find it better to use common constructs
> when it doesn't hurt readability. The order evaluation can be even done
> in a trivial helper.

Uhm, I will have a look how it looks.
Maybe with a nice comment explaining what is going on can make it in.
If not, I can always keep what we have atm.

> As I've said I will not insist and this can be done in the follow up.
> You are iterating over memory blocks just to refuse to do an operation
> which can be split to several memory blocks. See
> http://lkml.kernel.org/r/YFtPxH0CT5QZsnR1@dhcp22.suse.cz and follow
> walk_memory_blocks(start, size, NULL, remove_memory_block_cb)

Ok, thanks for the link.
I will have a look, but I would rather do it as a follow-up.

-- 
Oscar Salvador
SUSE L3