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From: Tang Chen <tangchen@cn.fujitsu.com>
To: "Jiang Liu" <jiang.liu@linux.intel.com>,
	"Andrew Morton" <akpm@linux-foundation.org>,
	"Mel Gorman" <mgorman@suse.de>,
	"David Rientjes" <rientjes@google.com>,
	"Mike Galbraith" <umgwanakikbuti@gmail.com>,
	"Peter Zijlstra" <peterz@infradead.org>,
	"Rafael J . Wysocki" <rafael.j.wysocki@intel.com>,
	"Tejun Heo" <tj@kernel.org>,
	"Thomas Gleixner" <tglx@linutronix.de>,
	"Ingo Molnar" <mingo@redhat.com>,
	"H. Peter Anvin" <hpa@zytor.com>,
	x86@kernel.org, "Rafael J. Wysocki" <rjw@rjwysocki.net>,
	"Len Brown" <len.brown@intel.com>, "Pavel Machek" <pavel@ucw.cz>,
	"Borislav Petkov" <bp@alien8.de>,
	"Andy Lutomirski" <luto@amacapital.net>,
	"Boris Ostrovsky" <boris.ostrovsky@oracle.com>,
	"Dave Hansen" <dave.hansen@linux.intel.com>,
	"\"Jan H. Schönherr\"" <jschoenh@amazon.de>,
	"Igor Mammedov" <imammedo@redhat.com>,
	"Paul E. McKenney" <paulmck@linux.vnet.ibm.com>,
	"Xishi Qiu" <qiuxishi@huawei.com>,
	"Luiz Capitulino" <lcapitulino@redhat.com>,
	"Dave Young" <dyoung@redhat.com>
Cc: Tony Luck <tony.luck@intel.com>,
	linux-mm@kvack.org, linux-hotplug@vger.kernel.org,
	linux-kernel@vger.kernel.org, Ingo Molnar <mingo@kernel.org>,
	linux-pm@vger.kernel.org, tangchen@cn.fujitsu.com
Subject: Re: [Patch V3 9/9] mm, x86: Enable memoryless node support to better support CPU/memory hotplug
Date: Tue, 18 Aug 2015 11:28:11 +0000	[thread overview]
Message-ID: <55D316CB.3010509@cn.fujitsu.com> (raw)
In-Reply-To: <55D2D7C2.3090109@linux.intel.com>


On 08/18/2015 02:59 PM, Jiang Liu wrote:
>
> ...
>>>        }
>>> @@ -739,6 +746,22 @@ void __init init_cpu_to_node(void)
>>>            if (!node_online(node))
>>>                node = find_near_online_node(node);

Hi Liu,

If cpu-less, memory-less and normal node will all be online anyway,
I think we don't need to find_near_online_node() any more for
CPUs on offline nodes.

Or is there any other case ?

Thanks.



WARNING: multiple messages have this Message-ID (diff)
From: Tang Chen <tangchen@cn.fujitsu.com>
To: "Jiang Liu" <jiang.liu@linux.intel.com>,
	"Andrew Morton" <akpm@linux-foundation.org>,
	"Mel Gorman" <mgorman@suse.de>,
	"David Rientjes" <rientjes@google.com>,
	"Mike Galbraith" <umgwanakikbuti@gmail.com>,
	"Peter Zijlstra" <peterz@infradead.org>,
	"Rafael J . Wysocki" <rafael.j.wysocki@intel.com>,
	"Tejun Heo" <tj@kernel.org>,
	"Thomas Gleixner" <tglx@linutronix.de>,
	"Ingo Molnar" <mingo@redhat.com>,
	"H. Peter Anvin" <hpa@zytor.com>,
	x86@kernel.org, "Rafael J. Wysocki" <rjw@rjwysocki.net>,
	"Len Brown" <len.brown@intel.com>, "Pavel Machek" <pavel@ucw.cz>,
	"Borislav Petkov" <bp@alien8.de>,
	"Andy Lutomirski" <luto@amacapital.net>,
	"Boris Ostrovsky" <boris.ostrovsky@oracle.com>,
	"Dave Hansen" <dave.hansen@linux.intel.com>,
	"\"Jan H. Schönherr\"" <jschoenh@amazon.de>
Cc: Tony Luck <tony.luck@intel.com>,
	linux-mm@kvack.org, linux-hotplug@vger.kernel.org,
	linux-kernel@vger.kernel.org, Ingo Molnar <mingo@kernel.org>,
	linux-pm@vger.kernel.org, tangchen@cn.fujitsu.com
Subject: Re: [Patch V3 9/9] mm, x86: Enable memoryless node support to better support CPU/memory hotplug
Date: Tue, 18 Aug 2015 19:28:11 +0800	[thread overview]
Message-ID: <55D316CB.3010509@cn.fujitsu.com> (raw)
In-Reply-To: <55D2D7C2.3090109@linux.intel.com>


On 08/18/2015 02:59 PM, Jiang Liu wrote:
>
> ...
>>>        }
>>> @@ -739,6 +746,22 @@ void __init init_cpu_to_node(void)
>>>            if (!node_online(node))
>>>                node = find_near_online_node(node);

Hi Liu,

If cpu-less, memory-less and normal node will all be online anyway,
I think we don't need to find_near_online_node() any more for
CPUs on offline nodes.

Or is there any other case ?

Thanks.


--
To unsubscribe, send a message with 'unsubscribe linux-mm' in
the body to majordomo@kvack.org.  For more info on Linux MM,
see: http://www.linux-mm.org/ .
Don't email: <a href=mailto:"dont@kvack.org"> email@kvack.org </a>

WARNING: multiple messages have this Message-ID (diff)
From: Tang Chen <tangchen@cn.fujitsu.com>
To: "Jiang Liu" <jiang.liu@linux.intel.com>,
	"Andrew Morton" <akpm@linux-foundation.org>,
	"Mel Gorman" <mgorman@suse.de>,
	"David Rientjes" <rientjes@google.com>,
	"Mike Galbraith" <umgwanakikbuti@gmail.com>,
	"Peter Zijlstra" <peterz@infradead.org>,
	"Rafael J . Wysocki" <rafael.j.wysocki@intel.com>,
	"Tejun Heo" <tj@kernel.org>,
	"Thomas Gleixner" <tglx@linutronix.de>,
	"Ingo Molnar" <mingo@redhat.com>,
	"H. Peter Anvin" <hpa@zytor.com>,
	x86@kernel.org, "Rafael J. Wysocki" <rjw@rjwysocki.net>,
	"Len Brown" <len.brown@intel.com>, "Pavel Machek" <pavel@ucw.cz>,
	"Borislav Petkov" <bp@alien8.de>,
	"Andy Lutomirski" <luto@amacapital.net>,
	"Boris Ostrovsky" <boris.ostrovsky@oracle.com>,
	"Dave Hansen" <dave.hansen@linux.intel.com>,
	"\"Jan H. Schönherr\"" <jschoenh@amazon.de>,
	"Igor Mammedov" <imammedo@redhat.com>,
	"Paul E. McKenney" <paulmck@linux.vnet.ibm.com>,
	"Xishi Qiu" <qiuxishi@huawei.com>,
	"Luiz Capitulino" <lcapitulino@redhat.com>,
	"Dave Young" <dyoung@redhat.com>
Cc: Tony Luck <tony.luck@intel.com>,
	linux-mm@kvack.org, linux-hotplug@vger.kernel.org,
	linux-kernel@vger.kernel.org, Ingo Molnar <mingo@kernel.org>,
	linux-pm@vger.kernel.org, tangchen@cn.fujitsu.com
Subject: Re: [Patch V3 9/9] mm, x86: Enable memoryless node support to better support CPU/memory hotplug
Date: Tue, 18 Aug 2015 19:28:11 +0800	[thread overview]
Message-ID: <55D316CB.3010509@cn.fujitsu.com> (raw)
In-Reply-To: <55D2D7C2.3090109@linux.intel.com>


On 08/18/2015 02:59 PM, Jiang Liu wrote:
>
> ...
>>>        }
>>> @@ -739,6 +746,22 @@ void __init init_cpu_to_node(void)
>>>            if (!node_online(node))
>>>                node = find_near_online_node(node);

Hi Liu,

If cpu-less, memory-less and normal node will all be online anyway,
I think we don't need to find_near_online_node() any more for
CPUs on offline nodes.

Or is there any other case ?

Thanks.


--
To unsubscribe, send a message with 'unsubscribe linux-mm' in
the body to majordomo@kvack.org.  For more info on Linux MM,
see: http://www.linux-mm.org/ .
Don't email: <a href=mailto:"dont@kvack.org"> email@kvack.org </a>

WARNING: multiple messages have this Message-ID (diff)
From: Tang Chen <tangchen@cn.fujitsu.com>
To: "Jiang Liu" <jiang.liu@linux.intel.com>,
	"Andrew Morton" <akpm@linux-foundation.org>,
	"Mel Gorman" <mgorman@suse.de>,
	"David Rientjes" <rientjes@google.com>,
	"Mike Galbraith" <umgwanakikbuti@gmail.com>,
	"Peter Zijlstra" <peterz@infradead.org>,
	"Rafael J . Wysocki" <rafael.j.wysocki@intel.com>,
	"Tejun Heo" <tj@kernel.org>,
	"Thomas Gleixner" <tglx@linutronix.de>,
	"Ingo Molnar" <mingo@redhat.com>,
	"H. Peter Anvin" <hpa@zytor.com>,
	x86@kernel.org, "Rafael J. Wysocki" <rjw@rjwysocki.net>,
	"Len Brown" <len.brown@intel.com>, "Pavel Machek" <pavel@ucw.cz>,
	"Borislav Petkov" <bp@alien8.de>,
	"Andy Lutomirski" <luto@amacapital.net>,
	"Boris Ostrovsky" <boris.ostrovsky@oracle.com>,
	"Dave Hansen" <dave.hansen@linux.intel.com>,
	"\"Jan H. Schönherr\"" <jschoenh@amazon.de>,
	"Igor Mammedov" <imammedo@redhat.com>,
	"Paul E. McKenney" <paulmck@linux.vnet.ibm.com>,
	"Xishi Qiu" <qiuxishi@huawei.com>,
	"Luiz Capitulino" <lcapitulino@redhat.com>,
	"Dave Young" <dyoung@redhat.com>
Cc: Tony Luck <tony.luck@intel.com>, <linux-mm@kvack.org>,
	<linux-hotplug@vger.kernel.org>, <linux-kernel@vger.kernel.org>,
	Ingo Molnar <mingo@kernel.org>, <linux-pm@vger.kernel.org>,
	<tangchen@cn.fujitsu.com>
Subject: Re: [Patch V3 9/9] mm, x86: Enable memoryless node support to better support CPU/memory hotplug
Date: Tue, 18 Aug 2015 19:28:11 +0800	[thread overview]
Message-ID: <55D316CB.3010509@cn.fujitsu.com> (raw)
In-Reply-To: <55D2D7C2.3090109@linux.intel.com>


On 08/18/2015 02:59 PM, Jiang Liu wrote:
>
> ...
>>>        }
>>> @@ -739,6 +746,22 @@ void __init init_cpu_to_node(void)
>>>            if (!node_online(node))
>>>                node = find_near_online_node(node);

Hi Liu,

If cpu-less, memory-less and normal node will all be online anyway,
I think we don't need to find_near_online_node() any more for
CPUs on offline nodes.

Or is there any other case ?

Thanks.



  reply	other threads:[~2015-08-18 11:28 UTC|newest]

Thread overview: 130+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-08-17  3:18 [Patch V3 0/9] Enable memoryless node support for x86 Jiang Liu
2015-08-17  3:18 ` Jiang Liu
2015-08-17  3:18 ` Jiang Liu
2015-08-17  3:18 ` [Patch V3 1/9] x86, NUMA, ACPI: Online node earlier when doing CPU hot-addition Jiang Liu
2015-08-17  3:18   ` Jiang Liu
2015-08-17  3:18   ` Jiang Liu
2015-08-17  3:18 ` [Patch V3 2/9] kernel/profile.c: Replace cpu_to_mem() with cpu_to_node() Jiang Liu
2015-08-17  3:18   ` Jiang Liu
2015-08-17  3:18   ` Jiang Liu
2015-08-18  0:31   ` David Rientjes
2015-08-18  0:31     ` David Rientjes
2015-08-18  0:31     ` David Rientjes
2015-08-19  7:18     ` Jiang Liu
2015-08-19  7:18       ` Jiang Liu
2015-08-19  7:18       ` Jiang Liu
2015-08-20  0:00       ` David Rientjes
2015-08-20  0:00         ` David Rientjes
2015-08-20  0:00         ` David Rientjes
2015-10-09  2:35         ` Jiang Liu
2015-10-09  2:35           ` Jiang Liu
2015-10-09  2:35           ` Jiang Liu
2015-08-17  3:19 ` [Patch V3 3/9] sgi-xp: Replace cpu_to_node() with cpu_to_mem() to support memoryless node Jiang Liu
2015-08-17  3:19   ` Jiang Liu
2015-08-17  3:19   ` Jiang Liu
2015-08-18  0:25   ` David Rientjes
2015-08-18  0:25     ` David Rientjes
2015-08-18  0:25     ` David Rientjes
2015-08-19  8:20     ` Jiang Liu
2015-08-19  8:20       ` Jiang Liu
2015-08-19  8:20       ` Jiang Liu
2015-08-20  0:02       ` David Rientjes
2015-08-20  0:02         ` David Rientjes
2015-08-20  0:02         ` David Rientjes
2015-08-20  6:36         ` Jiang Liu
2015-08-20  6:36           ` Jiang Liu
2015-08-20  6:36           ` Jiang Liu
2015-10-09  5:04           ` Jiang Liu
2015-10-09  5:04             ` Jiang Liu
2015-10-09  5:04             ` Jiang Liu
2015-08-19 11:52   ` Robin Holt
2015-08-19 11:52     ` Robin Holt
2015-08-19 11:52     ` Robin Holt
2015-08-19 12:45     ` Jiang Liu
2015-08-19 12:45       ` Jiang Liu
2015-08-19 12:45       ` Jiang Liu
2015-08-17  3:19 ` [Patch V3 4/9] openvswitch: " Jiang Liu
2015-08-17  3:19   ` Jiang Liu
2015-08-17  3:19   ` Jiang Liu
2015-08-18  0:14   ` Pravin Shelar
2015-08-18  0:14     ` Pravin Shelar
2015-08-18  0:14     ` Pravin Shelar
2015-08-17  3:19 ` [Intel-wired-lan] [Patch V3 5/9] i40e: Use numa_mem_id() to better " Jiang Liu
2015-08-17  3:19   ` Jiang Liu
2015-08-17  3:19   ` Jiang Liu
2015-08-17  3:19   ` Jiang Liu
2015-08-18  0:35   ` [Intel-wired-lan] " David Rientjes
2015-08-18  0:35     ` David Rientjes
2015-08-18  0:35     ` David Rientjes
2015-08-18  0:35     ` David Rientjes
2015-08-19 17:04   ` [Intel-wired-lan] " Bowers, AndrewX
2015-08-19 22:38   ` Patil, Kiran
2015-08-19 22:38     ` Patil, Kiran
2015-08-19 22:38     ` Patil, Kiran
2015-08-20  0:18     ` David Rientjes
2015-08-20  0:18       ` David Rientjes
2015-08-20  0:18       ` David Rientjes
2015-08-20  0:18       ` David Rientjes
2015-08-20  0:18       ` David Rientjes
2015-10-08 20:20       ` Andrew Morton
2015-10-08 20:20         ` Andrew Morton
2015-10-08 20:20         ` Andrew Morton
2015-10-08 20:20         ` Andrew Morton
2015-10-08 20:20         ` Andrew Morton
2015-10-09  5:52         ` Jiang Liu
2015-10-09  5:52           ` Jiang Liu
2015-10-09  5:52           ` Jiang Liu
2015-10-09  5:52           ` Jiang Liu
2015-10-09  5:52           ` Jiang Liu
2015-10-09  9:08           ` Kamezawa Hiroyuki
2015-10-09  9:08             ` Kamezawa Hiroyuki
2015-10-09  9:08             ` Kamezawa Hiroyuki
2015-10-09  9:08             ` Kamezawa Hiroyuki
2015-10-09  9:08             ` Kamezawa Hiroyuki
2015-10-09  9:25             ` Jiang Liu
2015-10-09  9:25               ` Jiang Liu
2015-10-09  9:25               ` Jiang Liu
2015-10-09  9:25               ` Jiang Liu
2015-10-09  9:25               ` Jiang Liu
2015-08-17  3:19 ` [Intel-wired-lan] [Patch V3 6/9] i40evf: " Jiang Liu
2015-08-17  3:19   ` Jiang Liu
2015-08-17  3:19   ` Jiang Liu
2015-08-17  3:19   ` Jiang Liu
2015-08-17 19:03   ` [Intel-wired-lan] " Patil, Kiran
2015-08-17 19:03     ` Patil, Kiran
2015-08-17 19:03     ` Patil, Kiran
2015-08-18 21:34     ` Jeff Kirsher
2015-08-18 21:34       ` Jeff Kirsher
2015-08-17  3:19 ` [Patch V3 7/9] x86, numa: Kill useless code to improve code readability Jiang Liu
2015-08-17  3:19   ` Jiang Liu
2015-08-17  3:19   ` Jiang Liu
2015-08-17  3:19 ` [Patch V3 8/9] mm: Update _mem_id_[] for every possible CPU when memory configuration changes Jiang Liu
2015-08-17  3:19   ` Jiang Liu
2015-08-17  3:19   ` Jiang Liu
2015-08-17  3:19 ` [Patch V3 9/9] mm, x86: Enable memoryless node support to better support CPU/memory hotplug Jiang Liu
2015-08-17  3:19   ` Jiang Liu
2015-08-17  3:19   ` Jiang Liu
2015-08-17  3:19   ` Jiang Liu
2015-08-18  6:11   ` Tang Chen
2015-08-18  6:11     ` Tang Chen
2015-08-18  6:11     ` Tang Chen
2015-08-18  6:11     ` Tang Chen
2015-08-18  6:59     ` Jiang Liu
2015-08-18  6:59       ` Jiang Liu
2015-08-18 11:28       ` Tang Chen [this message]
2015-08-18 11:28         ` Tang Chen
2015-08-18 11:28         ` Tang Chen
2015-08-18 11:28         ` Tang Chen
2015-08-18  7:31   ` Ingo Molnar
2015-08-18  7:31     ` Ingo Molnar
2015-08-18  7:31     ` Ingo Molnar
2015-08-18  7:31     ` Ingo Molnar
2015-08-17 21:35 ` [Patch V3 0/9] Enable memoryless node support for x86 Andrew Morton
2015-08-17 21:35   ` Andrew Morton
2015-08-17 21:35   ` Andrew Morton
2015-08-18 10:02 ` Tang Chen
2015-08-18 10:02   ` Tang Chen
2015-08-18 10:02   ` Tang Chen
2015-08-19  8:09   ` Jiang Liu
2015-08-19  8:09     ` Jiang Liu
2015-08-19  8:09     ` Jiang Liu

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