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Subject[PATCH v3 04/12] sched/numa: use wrapper function task_node to get node which task is on
Date
Changelog:
v2 -> v3:
* tranlate cpu_to_node(task_cpu(p)) to task_node(p) in sched/debug.c

Use wrapper function task_node to get node which task is on.

Acked-by: Mel Gorman <mgorman@suse.de>
Reviewed-by: Naoya Horiguchi <n-horiguchi@ah.jp.nec.com>
Reviewed-by: Rik van Riel <riel@redhat.com>
Signed-off-by: Wanpeng Li <liwanp@linux.vnet.ibm.com>
---
kernel/sched/debug.c | 2 +-
kernel/sched/fair.c | 4 ++--
2 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/kernel/sched/debug.c b/kernel/sched/debug.c
index 5c34d18..374fe04 100644
--- a/kernel/sched/debug.c
+++ b/kernel/sched/debug.c
@@ -139,7 +139,7 @@ print_task(struct seq_file *m, struct rq *rq, struct task_struct *p)
0LL, 0LL, 0LL, 0L, 0LL, 0L, 0LL, 0L);
#endif
#ifdef CONFIG_NUMA_BALANCING
- SEQ_printf(m, " %d", cpu_to_node(task_cpu(p)));
+ SEQ_printf(m, " %d", task_node(p));
#endif
#ifdef CONFIG_CGROUP_SCHED
SEQ_printf(m, " %s", task_group_path(task_group(p)));
diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c
index 56bcc0c..e0b1063 100644
--- a/kernel/sched/fair.c
+++ b/kernel/sched/fair.c
@@ -1216,7 +1216,7 @@ static int task_numa_migrate(struct task_struct *p)
* elsewhere, so there is no point in (re)trying.
*/
if (unlikely(!sd)) {
- p->numa_preferred_nid = cpu_to_node(task_cpu(p));
+ p->numa_preferred_nid = task_node(p);
return -EINVAL;
}

@@ -1283,7 +1283,7 @@ static void numa_migrate_preferred(struct task_struct *p)
p->numa_migrate_retry = jiffies + HZ;

/* Success if task is already running on preferred CPU */
- if (cpu_to_node(task_cpu(p)) == p->numa_preferred_nid)
+ if (task_node(p) == p->numa_preferred_nid)
return;

/* Otherwise, try migrate to a CPU on the preferred node */
--
1.7.5.4


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