From: Heiko Carstens <heiko.carstens@de.ibm.com>
To: David Hildenbrand <david@redhat.com>
Cc: linux-kernel@vger.kernel.org, linux-mm@kvack.org,
linux-s390@vger.kernel.org, Vasily Gorbik <gor@linux.ibm.com>,
Christian Borntraeger <borntraeger@de.ibm.com>,
Philipp Rudo <prudo@linux.ibm.com>,
Michael Holzheu <holzheu@linux.vnet.ibm.com>
Subject: Re: [PATCH RFC 2/2] s390/mm: don't set ARCH_KEEP_MEMBLOCK
Date: Fri, 26 Jun 2020 18:32:15 +0200 [thread overview]
Message-ID: <20200626163215.GA4268@osiris> (raw)
In-Reply-To: <20200417150151.17239-3-david@redhat.com>
On Fri, Apr 17, 2020 at 05:01:51PM +0200, David Hildenbrand wrote:
> Commit 50be63450728 ("s390/mm: Convert bootmem to memblock") mentions
> "The original bootmem allocator is getting replaced by memblock. To
> cover the needs of the s390 kdump implementation the physical
> memory list is used."
>
> zcore was converted to use resources instead of memblocks.
> memblock_discard() will *not* mess with "physmem", only with "memory" and
> "reserved" memblocks. So, that data will stay after early boot, to be
> used in arch/s390/kernel/crash_dump.c to create the ELF header from
> inside the 2nd (a.k.a. dumping) kernel.
>
> We no longer need ARCH_KEEP_MEMBLOCK.
>
> Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
> Cc: Vasily Gorbik <gor@linux.ibm.com>
> Cc: Christian Borntraeger <borntraeger@de.ibm.com>
> Cc: Philipp Rudo <prudo@linux.ibm.com>
> Cc: Michael Holzheu <holzheu@linux.vnet.ibm.com>
> Signed-off-by: David Hildenbrand <david@redhat.com>
> ---
> arch/s390/Kconfig | 1 -
> 1 file changed, 1 deletion(-)
Applied, thanks!
next prev parent reply other threads:[~2020-06-26 16:32 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-04-17 15:01 [PATCH RFC 0/2] s390/mm: don't set ARCH_KEEP_MEMBLOCK David Hildenbrand
2020-04-17 15:01 ` [PATCH RFC 1/2] s390/zcore: traverse resources instead of memblocks David Hildenbrand
2020-06-10 11:45 ` Heiko Carstens
2020-06-19 12:47 ` Philipp Rudo
2020-06-19 12:49 ` David Hildenbrand
2020-04-17 15:01 ` [PATCH RFC 2/2] s390/mm: don't set ARCH_KEEP_MEMBLOCK David Hildenbrand
2020-06-26 16:32 ` Heiko Carstens [this message]
2020-06-29 12:44 ` Heiko Carstens
2020-06-29 13:02 ` David Hildenbrand
2020-04-29 14:55 ` [PATCH RFC 0/2] " David Hildenbrand
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