linux-kernel - Re: [PATCH v2 2/8] mm/memory_hotplug: Rename mhp_restrictions to mhp

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Message-Id: <5D5ED235-EB67-4072-8CCA-C046B7EC031C@redhat.com>
Date:   Wed, 8 Jan 2020 20:08:07 +0100
From:   David Hildenbrand <david@...hat.com>
To:     Dan Williams <dan.j.williams@...el.com>
Cc:     Logan Gunthorpe <logang@...tatee.com>,
        David Hildenbrand <david@...hat.com>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Linux ARM <linux-arm-kernel@...ts.infradead.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>,
        platform-driver-x86@...r.kernel.org, Linux MM <linux-mm@...ck.org>,
        Michal Hocko <mhocko@...nel.org>,
        Andrew Morton <akpm@...ux-foundation.org>,
        Christoph Hellwig <hch@....de>,
        Catalin Marinas <catalin.marinas@....com>,
        Will Deacon <will@...nel.org>,
        Benjamin Herrenschmidt <benh@...nel.crashing.org>,
        Thomas Gleixner <tglx@...utronix.de>,
        Ingo Molnar <mingo@...hat.com>, Borislav Petkov <bp@...en8.de>,
        Dave Hansen <dave.hansen@...ux.intel.com>,
        Andy Lutomirski <luto@...nel.org>,
        Peter Zijlstra <peterz@...radead.org>,
        Eric Badger <ebadger@...aio.com>
Subject: Re: [PATCH v2 2/8] mm/memory_hotplug: Rename mhp_restrictions to mhp_modifiers



> Am 08.01.2020 um 20:00 schrieb Dan Williams <dan.j.williams@...el.com>:
> 
> On Wed, Jan 8, 2020 at 9:17 AM Logan Gunthorpe <logang@...tatee.com> wrote:
>> 
>> 
>> 
>>> On 2020-01-08 5:28 a.m., David Hildenbrand wrote:
>>> On 07.01.20 21:59, Logan Gunthorpe wrote:
>>>> The mhp_restrictions struct really doesn't specify anything resembling
>>>> a restriction anymore so rename it to be mhp_modifiers.
>>> 
>>> I wonder if something like "mhp_params" would be even better. It's
>>> essentially just a way to avoid changing call chains rough-out all archs
>>> whenever we want to add a new parameter.
>> 
>> Sure, that does sound a bit nicer to me. I can change it for v3.
> 
> Oh, I was just about to chime in to support "modifiers" because I
> would expect all parameters to folded into a "params" struct. The
> modifiers seem to be limited to the set of items that are only
> considered in a non-default / expert memory hotplug use cases.
> 

It‘s a set of extended parameters I‘d say.