linux-kernel - Re: [PATCH v2 1/8] mm/memory_hotplug: Simplify and fix check_hotplug_memory

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Message-ID: <CAPcyv4jCtOYLCtAhRPhGrHZKyvHZmE8i1aGsRRBWk+G0v4EGAg@mail.gmail.com>
Date:   Tue, 7 May 2019 13:38:43 -0700
From:   Dan Williams <dan.j.williams@...el.com>
To:     David Hildenbrand <david@...hat.com>
Cc:     Linux MM <linux-mm@...ck.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        linux-ia64@...r.kernel.org,
        linuxppc-dev <linuxppc-dev@...ts.ozlabs.org>,
        linux-s390 <linux-s390@...r.kernel.org>,
        Linux-sh <linux-sh@...r.kernel.org>,
        Andrew Morton <akpm@...ux-foundation.org>,
        Oscar Salvador <osalvador@...e.de>,
        Michal Hocko <mhocko@...e.com>,
        Pavel Tatashin <pasha.tatashin@...een.com>,
        Qian Cai <cai@....pw>, Wei Yang <richard.weiyang@...il.com>,
        Arun KS <arunks@...eaurora.org>,
        Mathieu Malaterre <malat@...ian.org>
Subject: Re: [PATCH v2 1/8] mm/memory_hotplug: Simplify and fix check_hotplug_memory_range()

On Tue, May 7, 2019 at 11:38 AM David Hildenbrand <david@...hat.com> wrote:
>
> By converting start and size to page granularity, we actually ignore
> unaligned parts within a page instead of properly bailing out with an
> error.
>
> Cc: Andrew Morton <akpm@...ux-foundation.org>
> Cc: Oscar Salvador <osalvador@...e.de>
> Cc: Michal Hocko <mhocko@...e.com>
> Cc: David Hildenbrand <david@...hat.com>
> Cc: Pavel Tatashin <pasha.tatashin@...een.com>
> Cc: Qian Cai <cai@....pw>
> Cc: Wei Yang <richard.weiyang@...il.com>
> Cc: Arun KS <arunks@...eaurora.org>
> Cc: Mathieu Malaterre <malat@...ian.org>
> Signed-off-by: David Hildenbrand <david@...hat.com>

Reviewed-by: Dan Williams <dan.j.williams@...el.com>