linux-kernel - Re: [PATCH] mm: make __paginginit based on CONFIG_MEMORY

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Message-ID: <CAGM2reYmwqQDfk7Lx-whqxDnAb41VU=dusJjGrP3zhNyYQQJcg@mail.gmail.com>
Date:   Tue, 31 Jul 2018 10:43:25 -0400
From:   Pavel Tatashin <pasha.tatashin@...cle.com>
To:     osalvador@...hadventures.net
Cc:     Andrew Morton <akpm@...ux-foundation.org>,
        Michal Hocko <mhocko@...e.com>,
        Vlastimil Babka <vbabka@...e.cz>,
        kirill.shutemov@...ux.intel.com, iamjoonsoo.kim@....com,
        Mel Gorman <mgorman@...e.de>,
        Souptick Joarder <jrdr.linux@...il.com>,
        Linux Memory Management List <linux-mm@...ck.org>,
        LKML <linux-kernel@...r.kernel.org>, osalvador@...e.de
Subject: Re: [PATCH] mm: make __paginginit based on CONFIG_MEMORY_HOTPLUG

Hi Oscar,

There is a simpler way. I will send it out in a bit. No need for your
first function, only  setup_usemap() needs to be changed to __ref.

Pavel
On Tue, Jul 31, 2018 at 10:42 AM Oscar Salvador
<osalvador@...hadventures.net> wrote:
>
> On Tue, Jul 31, 2018 at 08:49:11AM -0400, Pavel Tatashin wrote:
> > Hi Oscar,
> >
> > Have you looked into replacing __paginginit via __meminit ? What is
> > the reason to keep both?
> Hi Pavel,
>
> Actually, thinking a bit more about this, it might make sense to remove
> __paginginit altogether and keep only __meminit.
> Looking at the original commit, I think that it was put as a way to abstract it.
>
> After the patchset [1] has been applied, only two functions marked as __paginginit
> remain, so it will be less hassle to replace that with __meminit.
>
> I will send a v2 tomorrow to be applied on top of [1].
>
> [1] https://patchwork.kernel.org/patch/10548861/
>
> Thanks
> --
> Oscar Salvador
> SUSE L3
>