linux-kernel - Re: [PATCH 2/3] x86: add numa_move_cpus_to

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <4A089E53.8010106@kernel.org>
Date:	Mon, 11 May 2009 14:53:23 -0700
From:	Yinghai Lu <yinghai@...nel.org>
To:	Christoph Lameter <cl@...ux-foundation.org>
CC:	Ingo Molnar <mingo@...e.hu>, Thomas Gleixner <tglx@...utronix.de>,
	"H. Peter Anvin" <hpa@...or.com>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Suresh Siddha <suresh.b.siddha@...el.com>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	Al Viro <viro@...iv.linux.org.uk>,
	Rusty Russell <rusty@...tcorp.com.au>,
	Pekka Enberg <penberg@...helsinki.fi>
Subject: Re: [PATCH 2/3] x86: add numa_move_cpus_to_node

Christoph Lameter wrote:
> On Fri, 8 May 2009, Yinghai Lu wrote:
> 
>> when node only have hot add range and don't have other static range.
>> that node will not be onlined, and cpus on that will be linked to nearby
>> node with memory.
>> then when that host add range is added later, we need to linked those cpus
>> back.
> 
> This going to be fun for the allocators that have put their queues on the
> respective nodes. How are the various OS structures that were allocated on
> the node that is downed / upped relocated?

NODE_DATA is new allocated on that node is backed on line for the first time.

per_cpu will still stay with old near node. because per_cpu is somehow preallocated for all possible cpu.

YH
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/