linux-kernel - Re: [PATCH RFC 0/2] s390/mm: don't set ARCH_KEEP

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Message-ID: <4444ceef-14c7-0975-673f-6fdeefdc4dc0@redhat.com>
Date:   Wed, 29 Apr 2020 16:55:55 +0200
From:   David Hildenbrand <david@...hat.com>
To:     linux-kernel@...r.kernel.org
Cc:     linux-mm@...ck.org, linux-s390@...r.kernel.org,
        Christian Borntraeger <borntraeger@...ibm.com>,
        Heiko Carstens <heiko.carstens@...ibm.com>,
        Kirill Smelkov <kirr@...edi.com>,
        Michael Holzheu <holzheu@...ux.vnet.ibm.com>,
        Philipp Rudo <prudo@...ux.ibm.com>,
        Vasily Gorbik <gor@...ux.ibm.com>
Subject: Re: [PATCH RFC 0/2] s390/mm: don't set ARCH_KEEP_MEMBLOCK

On 17.04.20 17:01, David Hildenbrand wrote:
> Looking into why we still create memblocks for hotplugged memory (via
> add_memory()), I discovered that we might not need ARCH_KEEP_MEMBLOCK on
> s390x after all.
> 
> After [1] we will no longer create memblocks for hotplugged memory in
> case of !CONFIG_ARCH_KEEP_MEMBLOCK. With this series, the same will apply
> to standby memory on s390x, added via add_memory().
> 
> [1] https://lkml.kernel.org/r/20200416104707.20219-1-david@redhat.com
> 
> David Hildenbrand (2):
>   s390/zcore: traverse resources instead of memblocks
>   s390/mm: don't set ARCH_KEEP_MEMBLOCK
> 
>  arch/s390/Kconfig         |  1 -
>  drivers/s390/char/zcore.c | 61 ++++++++++++++++++++++++++++++---------
>  2 files changed, 48 insertions(+), 14 deletions(-)
> 

Ping.

-- 
Thanks,

David / dhildenb