From: Tejun Heo <tj@kernel.org>
To: Yinghai Lu <yinghai@kernel.org>
Cc: Zhang Yanfei <zhangyanfei.yes@gmail.com>,
"H. Peter Anvin" <hpa@zytor.com>,
Andrew Morton <akpm@linux-foundation.org>,
"Rafael J . Wysocki" <rjw@sisk.pl>, Len Brown <lenb@kernel.org>,
Thomas Gleixner <tglx@linutronix.de>, Ingo Molnar <mingo@elte.hu>,
Toshi Kani <toshi.kani@hp.com>,
Wanpeng Li <liwanp@linux.vnet.ibm.com>,
Thomas Renninger <trenn@suse.de>,
Jiang Liu <jiang.liu@huawei.com>,
Wen Congyang <wency@cn.fujitsu.com>,
Lai Jiangshan <laijs@cn.fujitsu.com>,
Yasuaki Ishimatsu <isimatu.yasuaki@jp.fujitsu.com>,
Taku Izumi <izumi.taku@jp.fujitsu.com>,
Mel Gorman <mgorman@suse.de>, Minchan Kim <minchan@kernel.org>,
"mina86@mina86.com" <mina86@mina86.com>,
"gong.chen@linux.intel.com" <gong.chen@linux.intel.com>,
Vasilis Liaskovitis <vasilis.liaskovitis@profitbricks.com>,
"lwoodman@redhat.com" <lwoodman@redhat.com>,
Rik van Riel <riel@redhat.com>,
"jweiner@redhat.com" <jweiner@redhat.com>,
Prarit Bhargava <prarit@redhat.com>,
"x86@kernel.org" <x86@kernel.org>,
"linux-doc@vger.kernel.org" <linux-doc@vger.kernel.org>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
Linux MM <linux-mm@kvack.org>,
ACPI Devel Maling List <linux-acpi@vger.kernel.org>,
Chen Tang <imtangchen@gmail.com>,
Zhang Yanfei <zhangyanfei@cn.fujitsu.com>,
Tang Chen <tangchen@cn.fujitsu.com>
Subject: Re: [PATCH part1 v6 4/6] x86/mem-hotplug: Support initialize page tables in bottom-up
Date: Wed, 9 Oct 2013 15:23:56 -0400 [thread overview]
Message-ID: <20131009192356.GB5592@mtj.dyndns.org> (raw)
In-Reply-To: <CAE9FiQXhW2BacXUjQLK8TpcvhHAediuCntVR13sKGUuq_+=ymw@mail.gmail.com>
Hello, Yinghai.
On Wed, Oct 09, 2013 at 12:10:34PM -0700, Yinghai Lu wrote:
> > I still feel quite uneasy about pulling SRAT parsing and ACPI initrd
> > overriding into early boot.
>
> for your reconsidering to parse srat early, I refresh that old patchset
> at
>
> https://git.kernel.org/cgit/linux/kernel/git/yinghai/linux-yinghai.git/log/?h=for-x86-mm-3.13
>
> actually looks one-third or haf patches already have your ack.
Yes, but those acks assume that the overall approach is a good idea.
The biggest issue that I have with the approach is that it is invasive
and modifies basic structure for an inherently kludgy solution for a
quite niche problem. The benefit / cost ratio still seems quite off
to me - we're making a lot of general changes to serve something very
specialized, which might not even stay relevant for long time.
Thanks.
--
tejun
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next prev parent reply other threads:[~2013-10-09 19:24 UTC|newest]
Thread overview: 53+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-10-04 1:56 [PATCH part1 v6 0/6] x86, memblock: Allocate memory near kernel image before SRAT parsed Zhang Yanfei
2013-10-04 1:57 ` [PATCH part1 v6 1/6] memblock: Factor out of top-down allocation Zhang Yanfei
2013-10-04 1:58 ` [PATCH part1 v6 2/6] memblock: Introduce bottom-up allocation mode Zhang Yanfei
2013-10-05 21:30 ` Toshi Kani
2013-10-04 1:59 ` [PATCH part1 v6 3/6] x86/mm: Factor out of top-down direct mapping setup Zhang Yanfei
2013-10-04 2:00 ` [PATCH part1 v6 4/6] x86/mem-hotplug: Support initialize page tables in bottom-up Zhang Yanfei
2013-10-05 22:09 ` Toshi Kani
2013-10-07 0:00 ` H. Peter Anvin
2013-10-07 14:17 ` Zhang Yanfei
2013-10-08 17:36 ` Zhang Yanfei
2013-10-09 16:44 ` Tejun Heo
2013-10-09 17:14 ` Zhang Yanfei
2013-10-09 19:20 ` Tejun Heo
2013-10-09 19:30 ` Dave Hansen
2013-10-09 19:47 ` Tejun Heo
2013-10-09 20:58 ` Toshi Kani
2013-10-09 21:11 ` Tejun Heo
2013-10-09 21:14 ` H. Peter Anvin
2013-10-09 21:45 ` Zhang Yanfei
2013-10-09 23:10 ` H. Peter Anvin
2013-10-09 23:26 ` Zhang Yanfei
2013-10-10 1:20 ` Zhang Yanfei
2013-10-10 0:25 ` Toshi Kani
2013-10-09 23:58 ` Toshi Kani
2013-10-10 1:00 ` Tejun Heo
2013-10-10 14:36 ` Toshi Kani
2013-10-10 15:35 ` Tejun Heo
2013-10-10 16:24 ` Toshi Kani
2013-10-10 16:46 ` Tejun Heo
2013-10-10 16:50 ` Toshi Kani
2013-10-10 16:55 ` Tejun Heo
2013-10-10 16:59 ` Toshi Kani
2013-10-10 17:12 ` H. Peter Anvin
2013-10-10 19:17 ` Toshi Kani
2013-10-10 22:19 ` Tejun Heo
2013-10-10 23:00 ` Toshi Kani
2013-10-09 21:19 ` Zhang Yanfei
2013-10-09 21:22 ` H. Peter Anvin
2013-10-09 23:30 ` Zhang Yanfei
2013-10-09 19:10 ` Yinghai Lu
2013-10-09 19:23 ` Tejun Heo [this message]
2013-10-11 5:27 ` Yinghai Lu
2013-10-11 5:47 ` Zhang Yanfei
2013-10-11 6:33 ` Ingo Molnar
2013-10-11 6:46 ` Zhang Yanfei
2013-10-04 2:01 ` [PATCH part1 v6 5/6] x86, acpi, crash, kdump: Do reserve_crashkernel() after SRAT is parsed Zhang Yanfei
2013-10-05 22:10 ` Toshi Kani
2013-10-04 2:02 ` [PATCH part1 v6 6/6] mem-hotplug: Introduce movable_node boot option Zhang Yanfei
2013-10-05 22:28 ` Toshi Kani
2013-10-06 14:43 ` [PATCH part1 v6 update " Zhang Yanfei
2013-10-06 23:03 ` Toshi Kani
2013-10-08 4:23 ` [PATCH part1 v6 0/6] x86, memblock: Allocate memory near kernel image before SRAT parsed Ingo Molnar
2013-10-08 15:28 ` Zhang Yanfei
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