From: Ashok Raj <ashok.raj@intel.com>
To: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Cc: LKML <linux-kernel@vger.kernel.org>,
y-goto@jp.fujitsu.com, ktokunag@redhat.com, ashok.raj@intel.com,
Andrew Morton <akpm@osdl.org>
Subject: Re: [RFC][PATCH] node hotplug : register_cpu() changes [0/3]
Date: Tue, 23 May 2006 07:52:03 -0700 [thread overview]
Message-ID: <20060523075202.A24516@unix-os.sc.intel.com> (raw)
In-Reply-To: <20060523195636.693e00d6.kamezawa.hiroyu@jp.fujitsu.com>; from kamezawa.hiroyu@jp.fujitsu.com on Tue, May 23, 2006 at 07:56:36PM +0900
On Tue, May 23, 2006 at 07:56:36PM +0900, KAMEZAWA Hiroyuki wrote:
> I found acpi container, which describes node, could evaluate cpu before
> memory. This means cpu-hot-add occurs before memory hot add.
>
Is it possible to process memory before cpu in container hot-add code?
> In most part, cpu-hot-add doesn't depend on node hot add.
> But register_cpu, which creates symbolic link from node to cpu, requires
Dont you need all per-cpu allocated on that node? Or is it from node0 or
something for all hotpluggable cpus?
If node is online first, then all allocations come from that node, thought you
*want* to ensure node/mem is online before cpu is up to get that benefit.
> that node should be onlined before register_cpu().
> When a node is onlined, its pgdat should be there.
next prev parent reply other threads:[~2006-05-23 14:54 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-05-23 10:56 [RFC][PATCH] node hotplug : register_cpu() changes [0/3] KAMEZAWA Hiroyuki
2006-05-23 11:00 ` [RFC][PATCH] node hotplug [1/3] register-cpu-remove-node-struct KAMEZAWA Hiroyuki
2006-05-23 11:02 ` [RFC][PATCH] node hotplug [2/3] fixes callres of register_cpu KAMEZAWA Hiroyuki
2006-05-23 11:03 ` [RFC][PATCH] node hotplug [3/3] register_node fix KAMEZAWA Hiroyuki
2006-05-23 14:52 ` Ashok Raj [this message]
2006-05-24 0:18 ` [RFC][PATCH] node hotplug : register_cpu() changes [0/3] KAMEZAWA Hiroyuki
2006-05-24 7:05 ` KAMEZAWA Hiroyuki
2006-05-24 14:51 ` Ashok Raj
2006-05-25 0:34 ` KAMEZAWA Hiroyuki
2006-05-25 0:36 ` Ashok Raj
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