From: Dave Hansen <dave@linux.vnet.ibm.com>
To: Shaohui Zheng <shaohui.zheng@intel.com>
Cc: akpm@linux-foundation.org, linux-mm@kvack.org,
linux-kernel@vger.kernel.org, haicheng.li@linux.intel.com,
lethal@linux-sh.org, ak@linux.intel.com,
shaohui.zheng@linux.intel.com,
Haicheng Li <haicheng.li@intel.com>,
Wu Fengguang <fengguang.wu@intel.com>, Greg KH <greg@kroah.com>
Subject: Re: [7/8,v3] NUMA Hotplug Emulator: extend memory probe interface to support NUMA
Date: Fri, 19 Nov 2010 08:36:09 -0800 [thread overview]
Message-ID: <1290184569.32329.1986.camel@nimitz> (raw)
In-Reply-To: <20101119075119.GD3327@shaohui>
On Fri, 2010-11-19 at 15:51 +0800, Shaohui Zheng wrote:
> the purpose of hotplug emulator is providing a possible solution for cpu/memory
> hotplug testing, the interface upgrading is not part of emulator. Let's forget
> configfs here.
If it's just for testing, you're right, we probably shouldn't go to the
trouble of making a new interface. At the same time, we shouldn't put
something in /sys or configfs that we're not committed to, long-term.
So, not to replace the memory probe file, but _only_ to drive the new
debug-only node hot-add, I think its appropriate place is debugfs.
-- Dave
WARNING: multiple messages have this Message-ID (diff)
From: Dave Hansen <dave@linux.vnet.ibm.com>
To: Shaohui Zheng <shaohui.zheng@intel.com>
Cc: akpm@linux-foundation.org, linux-mm@kvack.org,
linux-kernel@vger.kernel.org, haicheng.li@linux.intel.com,
lethal@linux-sh.org, ak@linux.intel.com,
shaohui.zheng@linux.intel.com,
Haicheng Li <haicheng.li@intel.com>,
Wu Fengguang <fengguang.wu@intel.com>, Greg KH <greg@kroah.com>
Subject: Re: [7/8,v3] NUMA Hotplug Emulator: extend memory probe interface to support NUMA
Date: Fri, 19 Nov 2010 08:36:09 -0800 [thread overview]
Message-ID: <1290184569.32329.1986.camel@nimitz> (raw)
In-Reply-To: <20101119075119.GD3327@shaohui>
On Fri, 2010-11-19 at 15:51 +0800, Shaohui Zheng wrote:
> the purpose of hotplug emulator is providing a possible solution for cpu/memory
> hotplug testing, the interface upgrading is not part of emulator. Let's forget
> configfs here.
If it's just for testing, you're right, we probably shouldn't go to the
trouble of making a new interface. At the same time, we shouldn't put
something in /sys or configfs that we're not committed to, long-term.
So, not to replace the memory probe file, but _only_ to drive the new
debug-only node hot-add, I think its appropriate place is debugfs.
-- Dave
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next prev parent reply other threads:[~2010-11-19 16:36 UTC|newest]
Thread overview: 139+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-11-17 2:07 [0/8,v3] NUMA Hotplug Emulator - Introduction & Feedbacks shaohui.zheng
2010-11-17 2:07 ` shaohui.zheng
2010-11-17 2:08 ` [1/8,v3] NUMA Hotplug Emulator: add function to hide memory region via e820 table shaohui.zheng
2010-11-17 2:08 ` shaohui.zheng
2010-11-17 8:16 ` David Rientjes
2010-11-17 8:16 ` David Rientjes
2010-11-18 9:20 ` Shaohui Zheng
2010-11-18 9:20 ` Shaohui Zheng
2010-11-18 21:16 ` David Rientjes
2010-11-18 21:16 ` David Rientjes
2010-11-19 0:12 ` Shaohui Zheng
2010-11-19 0:12 ` Shaohui Zheng
2010-11-21 0:45 ` David Rientjes
2010-11-21 0:45 ` David Rientjes
2010-11-21 14:00 ` Américo Wang
2010-11-21 14:00 ` Américo Wang
2010-11-21 21:33 ` David Rientjes
2010-11-21 21:33 ` David Rientjes
2010-11-17 2:08 ` [2/8,v3] NUMA Hotplug Emulator: infrastructure of NUMA hotplug emulation shaohui.zheng
2010-11-17 2:08 ` shaohui.zheng
2010-11-17 8:16 ` David Rientjes
2010-11-17 8:16 ` David Rientjes
2010-11-17 7:51 ` Shaohui Zheng
2010-11-17 7:51 ` Shaohui Zheng
2010-11-17 21:10 ` David Rientjes
2010-11-17 21:10 ` David Rientjes
2010-11-18 4:14 ` Shaohui Zheng
2010-11-18 4:14 ` Shaohui Zheng
2010-11-18 6:27 ` Paul Mundt
2010-11-18 6:27 ` Paul Mundt
2010-11-18 5:27 ` Shaohui Zheng
2010-11-18 5:27 ` Shaohui Zheng
2010-11-18 21:24 ` David Rientjes
2010-11-18 21:24 ` David Rientjes
2010-11-19 0:32 ` Shaohui Zheng
2010-11-19 0:32 ` Shaohui Zheng
2010-11-21 0:48 ` David Rientjes
2010-11-21 0:48 ` David Rientjes
2010-11-21 2:28 ` [patch 1/2] x86: add numa=possible command line option David Rientjes
2010-11-21 2:28 ` David Rientjes
2010-11-21 2:28 ` [patch 2/2] mm: add node hotplug emulation David Rientjes
2010-11-21 2:28 ` David Rientjes
2010-11-21 17:34 ` Greg KH
2010-11-21 17:34 ` Greg KH
2010-11-21 21:48 ` David Rientjes
2010-11-21 21:48 ` David Rientjes
2010-11-21 23:08 ` [patch 2/2 v2] " David Rientjes
2010-11-21 23:08 ` David Rientjes
2010-11-22 0:56 ` Greg KH
2010-11-22 0:56 ` Greg KH
2010-11-28 1:52 ` David Rientjes
2010-11-28 1:52 ` David Rientjes
2010-11-28 5:17 ` Greg KH
2010-11-28 5:17 ` Greg KH
2010-11-30 0:04 ` David Rientjes
2010-11-30 0:04 ` David Rientjes
2010-11-21 14:26 ` [patch 1/2] x86: add numa=possible command line option Américo Wang
2010-11-21 14:26 ` Américo Wang
2010-11-21 21:46 ` David Rientjes
2010-11-21 21:46 ` David Rientjes
2010-11-22 15:43 ` Américo Wang
2010-11-22 15:43 ` Américo Wang
2010-11-21 15:14 ` [2/8,v3] NUMA Hotplug Emulator: infrastructure of NUMA hotplug emulation Li, Haicheng
2010-11-21 15:14 ` Li, Haicheng
2010-11-21 21:42 ` David Rientjes
2010-11-21 21:42 ` David Rientjes
2010-11-18 21:19 ` David Rientjes
2010-11-18 21:19 ` David Rientjes
2010-11-17 2:08 ` [3/8,v3] NUMA Hotplug Emulator: Userland interface to hotplug-add fake offlined nodes shaohui.zheng
2010-11-17 2:08 ` shaohui.zheng
2010-11-17 8:16 ` David Rientjes
2010-11-17 8:16 ` David Rientjes
2010-11-17 2:08 ` [4/8,v3] NUMA Hotplug Emulator: Abstract cpu register functions shaohui.zheng
2010-11-17 2:08 ` shaohui.zheng
2010-11-17 2:08 ` [5/8,v3] NUMA Hotplug Emulator: support cpu probe/release in x86 shaohui.zheng
2010-11-17 2:08 ` shaohui.zheng
2010-11-21 14:45 ` Américo Wang
2010-11-21 14:45 ` Américo Wang
2010-11-22 0:01 ` Shaohui Zheng
2010-11-22 0:01 ` Shaohui Zheng
2010-11-22 15:51 ` Américo Wang
2010-11-22 15:51 ` Américo Wang
2010-11-22 23:29 ` Shaohui Zheng
2010-11-22 23:29 ` Shaohui Zheng
2010-11-17 2:08 ` [6/8,v3] NUMA Hotplug Emulator: Fake CPU socket with logical CPU on x86 shaohui.zheng
2010-11-17 2:08 ` shaohui.zheng
2010-11-17 2:08 ` [7/8,v3] NUMA Hotplug Emulator: extend memory probe interface to support NUMA shaohui.zheng
2010-11-17 2:08 ` shaohui.zheng
2010-11-17 18:50 ` Dave Hansen
2010-11-17 18:50 ` Dave Hansen
2010-11-17 21:18 ` David Rientjes
2010-11-17 21:18 ` David Rientjes
2010-11-17 21:55 ` Dave Hansen
2010-11-17 21:55 ` Dave Hansen
2010-11-17 22:44 ` David Rientjes
2010-11-17 22:44 ` David Rientjes
2010-11-17 23:00 ` Dave Hansen
2010-11-17 23:00 ` Dave Hansen
2010-11-17 23:17 ` David Rientjes
2010-11-17 23:17 ` David Rientjes
2010-11-18 16:59 ` Aaron Durbin
2010-11-18 16:59 ` Aaron Durbin
2010-11-18 4:48 ` Shaohui Zheng
2010-11-18 4:48 ` Shaohui Zheng
2010-11-18 6:24 ` Paul Mundt
2010-11-18 6:24 ` Paul Mundt
2010-11-18 21:28 ` David Rientjes
2010-11-18 21:28 ` David Rientjes
2010-11-18 21:31 ` David Rientjes
2010-11-18 21:31 ` David Rientjes
2010-11-18 4:36 ` Shaohui Zheng
2010-11-18 4:36 ` Shaohui Zheng
2010-11-19 7:51 ` Shaohui Zheng
2010-11-19 16:36 ` Dave Hansen [this message]
2010-11-19 16:36 ` Dave Hansen
2010-11-17 2:08 ` [8/8,v3] NUMA Hotplug Emulator: documentation shaohui.zheng
2010-11-17 2:08 ` shaohui.zheng
2010-11-17 23:06 ` Randy Dunlap
2010-11-17 23:06 ` Randy Dunlap
2010-11-18 2:31 ` Shaohui Zheng
2010-11-18 2:31 ` Shaohui Zheng
2010-11-21 15:03 ` Américo Wang
2010-11-21 15:03 ` Américo Wang
2010-11-21 15:16 ` Li, Haicheng
2010-11-21 15:16 ` Li, Haicheng
2010-11-21 23:33 ` Shaohui Zheng
2010-11-21 23:33 ` Shaohui Zheng
2010-11-22 16:04 ` Américo Wang
2010-11-22 16:04 ` Américo Wang
2010-11-22 23:23 ` Shaohui Zheng
2010-11-22 23:23 ` Shaohui Zheng
2010-11-17 5:22 ` [0/8,v3] NUMA Hotplug Emulator - Introduction & Feedbacks Paul Mundt
2010-11-17 5:22 ` Paul Mundt
2010-11-19 5:54 ` Shaohui Zheng
2010-11-19 5:54 ` Shaohui Zheng
2010-11-17 9:26 ` Yinghai Lu
2010-11-17 9:26 ` Yinghai Lu
2010-11-18 2:03 ` Shaohui Zheng
2010-11-18 2:03 ` Shaohui Zheng
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