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From: Ingo Molnar <mingo@kernel.org>
To: Chen Zhou <chenzhou10@huawei.com>
Cc: wangkefeng.wang@huawei.com, horms@verge.net.au,
	ard.biesheuvel@linaro.org, catalin.marinas@arm.com,
	will.deacon@arm.com, linux-kernel@vger.kernel.org,
	rppt@linux.ibm.com, linux-mm@kvack.org,
	takahiro.akashi@linaro.org, mingo@redhat.com, bp@alien8.de,
	ebiederm@xmission.com, kexec@lists.infradead.org,
	tglx@linutronix.de, akpm@linux-foundation.org,
	linux-arm-kernel@lists.infradead.org
Subject: Re: [PATCH v3 1/4] x86: kdump: move reserve_crashkernel_low() into kexec_core.c
Date: Fri, 12 Apr 2019 09:00:27 +0200	[thread overview]
Message-ID: <20190412070027.GB129493@gmail.com> (raw)
In-Reply-To: <31b41dcc-0d16-d1d0-bff9-dec3e77515c1@huawei.com>


* Chen Zhou <chenzhou10@huawei.com> wrote:

> Hi Ingo,
> 
> On 2019/4/10 15:09, Ingo Molnar wrote:
> > 
> > * Chen Zhou <chenzhou10@huawei.com> wrote:
> > 
> >> In preparation for supporting more than one crash kernel regions
> >> in arm64 as x86_64 does, move reserve_crashkernel_low() into
> >> kexec/kexec_core.c.
> >>
> >> Signed-off-by: Chen Zhou <chenzhou10@huawei.com>
> >> ---
> >>  arch/x86/include/asm/kexec.h |  3 ++
> >>  arch/x86/kernel/setup.c      | 66 +++++---------------------------------------
> >>  include/linux/kexec.h        |  1 +
> >>  kernel/kexec_core.c          | 53 +++++++++++++++++++++++++++++++++++
> >>  4 files changed, 64 insertions(+), 59 deletions(-)
> > 
> > No objections for this to be merged via the ARM tree, as long as x86 
> > functionality is kept intact.
> 
> This patch has no affect on x86.

In *principle*.

In practice the series does change x86 code:

> >>  arch/x86/kernel/setup.c      | 66 +++++---------------------------------------
> >>  include/linux/kexec.h        |  1 +
> >>  kernel/kexec_core.c          | 53 +++++++++++++++++++++++++++++++++++

which is, *hopefully*, an identity transformation. :-)

I.e. Ack, but only if it doesn't break anything. :-)

Thanks,

	Ingo


  reply	other threads:[~2019-04-12  7:00 UTC|newest]

Thread overview: 17+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-04-09 10:28 [PATCH v3 0/4] support reserving crashkernel above 4G on arm64 kdump Chen Zhou
2019-04-09 10:28 ` [PATCH v3 1/4] x86: kdump: move reserve_crashkernel_low() into kexec_core.c Chen Zhou
2019-04-10  7:09   ` Ingo Molnar
2019-04-11 12:32     ` Chen Zhou
2019-04-12  7:00       ` Ingo Molnar [this message]
2019-04-09 10:28 ` [PATCH v3 2/4] arm64: kdump: support reserving crashkernel above 4G Chen Zhou
2019-04-09 10:28 ` [PATCH v3 3/4] arm64: kdump: support more than one crash kernel regions Chen Zhou
2019-04-10 13:09   ` Mike Rapoport
2019-04-11 12:17     ` Chen Zhou
2019-04-13  8:14       ` Chen Zhou
2019-04-14 12:10       ` Mike Rapoport
2019-04-15  2:05         ` Chen Zhou
2019-04-15  5:04           ` Mike Rapoport
2019-04-14 12:13   ` Mike Rapoport
2019-04-15  2:27     ` Chen Zhou
2019-04-15  4:55       ` Mike Rapoport
2019-04-09 10:28 ` [PATCH v3 4/4] kdump: update Documentation about crashkernel on arm64 Chen Zhou

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