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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/
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