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Date: Thu, 7 Jun 2018 15:48:07 -0700
From: Dave Hansen <dave.hansen@...el.com>
To: Baoquan He <bhe@...hat.com>, linux-kernel@...r.kernel.org,
akpm@...ux-foundation.org, pagupta@...hat.com
Cc: linux-mm@...ck.org, kirill.shutemov@...ux.intel.com
Subject: Re: [PATCH v4 3/4] mm/sparse: Add a new parameter 'data_unit_size'
for alloc_usemap_and_memmap
On 05/21/2018 03:15 AM, Baoquan He wrote:
> It's used to pass the size of map data unit into alloc_usemap_and_memmap,
> and is preparation for next patch.
This is the "what", but not the "why". Could you add another sentence
or two to explain why we need this?
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