linux-kernel - [PATCH 8/9] numa,sched: rename variables in task_numa

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Date:	Tue, 21 Jan 2014 17:20:10 -0500
From:	riel@...hat.com
To:	linux-kernel@...r.kernel.org
Cc:	linux-mm@...ck.org, peterz@...radead.org, mgorman@...e.de,
	mingo@...hat.com, chegu_vinod@...com
Subject: [PATCH 8/9] numa,sched: rename variables in task_numa_fault

From: Rik van Riel <riel@...hat.com>

We track both the node of the memory after a NUMA fault, and the node
of the CPU on which the fault happened. Rename the local variables in
task_numa_fault to make things more explicit.

Suggested-by: Mel Gorman <mgorman@...e.de>
Signed-off-by: Rik van Riel <riel@...hat.com>
---
 kernel/sched/fair.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c
index f713f3a..43ca8c4 100644
--- a/kernel/sched/fair.c
+++ b/kernel/sched/fair.c
@@ -1747,11 +1747,11 @@ void task_numa_free(struct task_struct *p)
 /*
  * Got a PROT_NONE fault for a page on @node.
  */
-void task_numa_fault(int last_cpupid, int node, int pages, int flags)
+void task_numa_fault(int last_cpupid, int mem_node, int pages, int flags)
 {
 	struct task_struct *p = current;
 	bool migrated = flags & TNF_MIGRATED;
-	int this_node = task_node(current);
+	int cpu_node = task_node(current);
 	int priv;
 
 	if (!numabalancing_enabled)
@@ -1806,8 +1806,8 @@ void task_numa_fault(int last_cpupid, int node, int pages, int flags)
 	if (migrated)
 		p->numa_pages_migrated += pages;
 
-	p->numa_faults_buffer_memory[task_faults_idx(node, priv)] += pages;
-	p->numa_faults_buffer_cpu[task_faults_idx(this_node, priv)] += pages;
+	p->numa_faults_buffer_memory[task_faults_idx(mem_node, priv)] += pages;
+	p->numa_faults_buffer_cpu[task_faults_idx(cpu_node, priv)] += pages;
 	p->numa_faults_locality[!!(flags & TNF_FAULT_LOCAL)] += pages;
 }
 
-- 
1.8.4.2

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