From: Toshi Kani <toshi.kani@hp.com>
To: Prarit Bhargava <prarit@redhat.com>
Cc: linux-kernel@vger.kernel.org,
Thomas Gleixner <tglx@linutronix.de>,
Ingo Molnar <mingo@redhat.com>, "H. Peter Anvin" <hpa@zytor.com>,
x86@kernel.org, Len Brown <lenb@kernel.org>,
"Rafael J. Wysocki" <rjw@rjwysocki.net>,
Linn Crosetto <linn@hp.com>, Pekka Enberg <penberg@kernel.org>,
Yinghai Lu <yinghai@kernel.org>,
Andrew Morton <akpm@linux-foundation.org>,
Tang Chen <tangchen@cn.fujitsu.com>,
Wen Congyang <wency@cn.fujitsu.com>,
Vivek Goyal <vgoyal@redhat.com>,
kosaki.motohiro@gmail.com, dyoung@redhat.com,
linux-acpi@vger.kernel.org, linux-mm@kvack.org
Subject: Re: [PATCH 1/2] acpi memory hotplug, add parameter to disable memory hotplug [v2]
Date: Fri, 10 Jan 2014 14:34:01 -0700 [thread overview]
Message-ID: <1389389641.1792.173.camel@misato.fc.hp.com> (raw)
In-Reply-To: <1389380698-19361-3-git-send-email-prarit@redhat.com>
On Fri, 2014-01-10 at 14:04 -0500, Prarit Bhargava wrote:
:
> ---
> Documentation/kernel-parameters.txt | 3 +++
> drivers/acpi/acpi_memhotplug.c | 12 ++++++++++++
> 2 files changed, 15 insertions(+)
>
> diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt
> index b9e9bd8..41374f9 100644
> --- a/Documentation/kernel-parameters.txt
> +++ b/Documentation/kernel-parameters.txt
> @@ -2117,6 +2117,9 @@ bytes respectively. Such letter suffixes can also be entirely omitted.
>
> nomce [X86-32] Machine Check Exception
>
> + acpi_no_memhotplug [ACPI] Disable memory hotplug. Useful for kexec
> + and kdump kernels.
> +
Please move it to where other acpi_xxx are described.
For kdump kernel, this option will be used when memmap=exactmap is
deprecated. IOW, it is not useful yet. Not sure what you mean by kexec
kernel. Memory hotplug does not need to be disabled for kexec reboot.
Thanks,
-Toshi
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next prev parent reply other threads:[~2014-01-10 21:39 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-01-10 19:04 [PATCH 0/2] Add option to disable ACPI Memory Hotplug [v2] Prarit Bhargava
2014-01-10 19:04 ` [PATCH 0/2] Add option to disable ACPI Memory Hotplug Prarit Bhargava
2014-01-10 19:04 ` [PATCH 1/2] acpi memory hotplug, add parameter to disable memory hotplug [v2] Prarit Bhargava
2014-01-10 21:34 ` Toshi Kani [this message]
2014-01-10 19:04 ` [PATCH 2/2] x86, e820 disable ACPI Memory Hotplug if memory mapping is specified by user [v2] Prarit Bhargava
2014-01-10 21:12 ` Vivek Goyal
2014-01-10 21:34 ` Toshi Kani
2014-01-11 16:35 ` 7eggert
2014-01-12 23:46 ` Prarit Bhargava
2014-01-13 20:31 ` KOSAKI Motohiro
2014-01-13 23:39 ` Prarit Bhargava
2014-01-14 0:33 ` Toshi Kani
2014-01-14 0:53 ` H. Peter Anvin
2014-01-14 1:09 ` Toshi Kani
2014-01-14 1:29 ` H. Peter Anvin
2014-01-14 1:40 ` Toshi Kani
2014-01-14 1:52 ` Dave Young
2014-01-14 1:47 ` Toshi Kani
2014-01-14 11:02 ` Prarit Bhargava
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