linux-kernel - [PATCH 1/2] add credits for NUMA placement

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Message-ID: <20121018171928.24d06af4@cuia.bos.redhat.com>
Date:	Thu, 18 Oct 2012 17:19:28 -0400
From:	Rik van Riel <riel@...hat.com>
To:	mingo@...hat.com
Cc:	linux-kernel@...r.kernel.org, aarcange@...hat.com,
	a.p.zijlstra@...llo.nl
Subject: [PATCH 1/2] add credits for NUMA placement

The NUMA placement code has been rewritten several times, but
the basic ideas took a lot of work to develop. The people who
put in the work deserve credit for it. Thanks Andrea & Peter :)

The Documentation/scheduler/numa-problem.txt file should
probably be rewritten once we figure out the final details of
what the NUMA code needs to do, and why.

Signed-off-by: Rik van Riel <riel@...hat.com>

----
This is against tip.git numa/core

diff --git a/CREDITS b/CREDITS
index d8fe12a..b4cdc8f 100644
--- a/CREDITS
+++ b/CREDITS
@@ -125,6 +125,7 @@ D: Author of pscan that helps to fix lp/parport bugs
 D: Author of lil (Linux Interrupt Latency benchmark)
 D: Fixed the shm swap deallocation at swapoff time (try_to_unuse message)
 D: VM hacker
+D: NUMA task placement
 D: Various other kernel hacks
 S: Imola 40026
 S: Italy
diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c
index 1e24aa1..e93032d 100644
--- a/kernel/sched/fair.c
+++ b/kernel/sched/fair.c
@@ -18,6 +18,9 @@
  *
  *  Adaptive scheduling granularity, math enhancements by Peter Zijlstra
  *  Copyright (C) 2007 Red Hat, Inc., Peter Zijlstra <pzijlstr@...hat.com>
+ *
+ *  NUMA placement, statistics and algorithm by Andrea Arcangeli,
+ *  CFS balancing changes by Peter Zijlstra. Copyright (C) 2012 Red Hat, Inc.
  */
 
 #include <linux/latencytop.h>
diff --git a/mm/memory.c b/mm/memory.c
index fc48fe8..9e56a44 100644
--- a/mm/memory.c
+++ b/mm/memory.c
@@ -36,6 +36,8 @@
  *		(Gerhard.Wichert@....siemens.de)
  *
  * Aug/Sep 2004 Changed to four level page tables (Andi Kleen)
+ *
+ * 2012 - NUMA placement page faults (Andrea Arcangeli, Peter Zijlstra)
  */
 
 #include <linux/kernel_stat.h>
--
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