linux-kernel - Re: [PATCH] mm, numa: Change page last {nid,pid} into {cpu,pid}

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Message-ID: <20130801183303.18880ad4@annuminas.surriel.com>
Date:	Thu, 1 Aug 2013 18:33:03 -0400
From:	Rik van Riel <riel@...hat.com>
To:	Peter Zijlstra <peterz@...radead.org>
Cc:	Mel Gorman <mgorman@...e.de>,
	Srikar Dronamraju <srikar@...ux.vnet.ibm.com>,
	Ingo Molnar <mingo@...nel.org>,
	Andrea Arcangeli <aarcange@...hat.com>,
	Johannes Weiner <hannes@...xchg.org>,
	Linux-MM <linux-mm@...ck.org>,
	LKML <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] mm, numa: Change page last {nid,pid} into {cpu,pid}

On Tue, 30 Jul 2013 13:24:39 +0200
Peter Zijlstra <peterz@...radead.org> wrote:

> 
> Subject: mm, numa: Change page last {nid,pid} into {cpu,pid}
> From: Peter Zijlstra <peterz@...radead.org>
> Date: Thu Jul 25 18:44:50 CEST 2013
> 
> Change the per page last fault tracking to use cpu,pid instead of
> nid,pid. This will allow us to try and lookup the alternate task more
> easily.
> 
> Signed-off-by: Peter Zijlstra <peterz@...radead.org>

Here are some compile fixes for !CONFIG_NUMA_BALANCING

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

---
 include/linux/mm.h | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/include/linux/mm.h b/include/linux/mm.h
index d2f91a2..4f34a37 100644
--- a/include/linux/mm.h
+++ b/include/linux/mm.h
@@ -746,7 +746,12 @@ static inline int cpupid_to_pid(int cpupid)
 	return -1;
 }
 
-static inline int nid_pid_to_cpupid(int nid, int pid)
+static inline int cpupid_to_cpu(int cpupid)
+{
+	return -1;
+}
+
+static inline int cpu_pid_to_cpupid(int nid, int pid)
 {
 	return -1;
 }
--
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