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Re: [PATCH] set_pgdat_percpu_threshold() don't use for_each_online_cpu

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From: Christoph Lameter
Subject: Re: [PATCH] set_pgdat_percpu_threshold() don't use for_each_online_cpu
Date: Monday, November 15, 2010 - 7:04 am

On Mon, 15 Nov 2010, Mel Gorman wrote:


We always guarantee that all per cpu areas for all possible cpus exist.
That has always been the case. There was a discussion about changing
that though. Could be difficult given the need for additional locking.


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Messages in current thread:
[PATCH 0/2] Reduce the amount of time spent in watermark-r ..., Mel Gorman, (Wed Oct 27, 1:47 am)
[PATCH 1/2] mm: page allocator: Adjust the per-cpu counter ..., Mel Gorman, (Wed Oct 27, 1:47 am)
[PATCH 2/2] mm: vmstat: Use a single setter function and c ..., Mel Gorman, (Wed Oct 27, 1:47 am)
Re: [PATCH 2/2] mm: vmstat: Use a single setter function a ..., Christoph Lameter, (Wed Oct 27, 1:13 pm)
Re: [PATCH 1/2] mm: page allocator: Adjust the per-cpu cou ..., Christoph Lameter, (Wed Oct 27, 1:16 pm)
Re: [PATCH 1/2] mm: page allocator: Adjust the per-cpu cou ..., KAMEZAWA Hiroyuki, (Wed Oct 27, 6:09 pm)
Re: [PATCH 2/2] mm: vmstat: Use a single setter function a ..., KAMEZAWA Hiroyuki, (Wed Oct 27, 6:10 pm)
Re: [PATCH 1/2] mm: page allocator: Adjust the per-cpu cou ..., Mel Gorman, (Thu Oct 28, 2:49 am)
Re: [PATCH 1/2] mm: page allocator: Adjust the per-cpu cou ..., KAMEZAWA Hiroyuki, (Thu Oct 28, 2:58 am)
Re: [PATCH 2/2] mm: vmstat: Use a single setter function a ..., KOSAKI Motohiro, (Mon Nov 1, 12:06 am)
Re: [PATCH 1/2] mm: page allocator: Adjust the per-cpu cou ..., KOSAKI Motohiro, (Mon Nov 1, 12:06 am)
[PATCH] set_pgdat_percpu_threshold() don't use for_each_on ..., KOSAKI Motohiro, (Sun Nov 14, 1:53 am)
Re: [PATCH] set_pgdat_percpu_threshold() don't use for_eac ..., Mel Gorman, (Mon Nov 15, 3:26 am)
Re: [PATCH] set_pgdat_percpu_threshold() don't use for_eac ..., Christoph Lameter, (Mon Nov 15, 7:04 am)
Re: [PATCH] set_pgdat_percpu_threshold() don't use for_eac ..., Mel Gorman, (Tue Nov 16, 2:58 am)
Re: [PATCH] set_pgdat_percpu_threshold() don't use for_eac ..., Andrew Morton, (Tue Nov 16, 5:07 pm)
Re: [PATCH] set_pgdat_percpu_threshold() don't use for_eac ..., Christoph Lameter, (Fri Nov 19, 8:29 am)
Re: [PATCH] set_pgdat_percpu_threshold() don't use for_eac ..., KOSAKI Motohiro, (Tue Nov 23, 1:32 am)
Re: [PATCH 1/2] mm: page allocator: Adjust the per-cpu cou ..., Kyle McMartin, (Fri Nov 26, 9:06 am)
Re: [PATCH 1/2] mm: page allocator: Adjust the per-cpu cou ..., Mel Gorman, (Mon Nov 29, 2:56 am)
Re: [PATCH 1/2] mm: page allocator: Adjust the per-cpu cou ..., Kyle McMartin, (Mon Nov 29, 6:16 am)
Re: [PATCH 1/2] mm: page allocator: Adjust the per-cpu cou ..., Mel Gorman, (Mon Nov 29, 8:08 am)
Re: [PATCH 1/2] mm: page allocator: Adjust the per-cpu cou ..., Kyle McMartin, (Mon Nov 29, 8:22 am)
Re: [PATCH 1/2] mm: page allocator: Adjust the per-cpu cou ..., Kyle McMartin, (Mon Nov 29, 8:26 am)
Re: [PATCH 1/2] mm: page allocator: Adjust the per-cpu cou ..., Mel Gorman, (Mon Nov 29, 8:58 am)
Re: [PATCH 1/2] mm: page allocator: Adjust the per-cpu cou ..., David Rientjes, (Thu Dec 23, 3:18 pm)
Re: [PATCH 1/2] mm: page allocator: Adjust the per-cpu cou ..., Andrew Morton, (Thu Dec 23, 3:35 pm)
Re: [PATCH 1/2] mm: page allocator: Adjust the per-cpu cou ..., Kyle McMartin, (Thu Dec 23, 4:00 pm)
Re: [PATCH 1/2] mm: page allocator: Adjust the per-cpu cou ..., David Rientjes, (Thu Dec 23, 4:07 pm)
Re: [PATCH 1/2] mm: page allocator: Adjust the per-cpu cou ..., Andrew Morton, (Thu Dec 23, 4:17 pm)