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From: Wanpeng Li <liwanp@linux.vnet.ibm.com>
To: Ingo Molnar <mingo@redhat.com>,
	Andrew Morton <akpm@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>,
	Mel Gorman <mgorman@suse.de>, Rik van Riel <riel@redhat.com>,
	Naoya Horiguchi <n-horiguchi@ah.jp.nec.com>,
	linux-kernel@vger.kernel.org, linux-mm@kvack.org,
	Wanpeng Li <liwanp@linux.vnet.ibm.com>
Subject: [PATCH v2 4/6] sched/numa: use wrapper function task_node to get node which task is on
Date: Fri,  6 Dec 2013 17:12:14 +0800	[thread overview]
Message-ID: <1386321136-27538-4-git-send-email-liwanp@linux.vnet.ibm.com> (raw)
In-Reply-To: <1386321136-27538-1-git-send-email-liwanp@linux.vnet.ibm.com>

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

Signed-off-by: Wanpeng Li <liwanp@linux.vnet.ibm.com>
---
 kernel/sched/fair.c |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)

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 */
-- 
1.7.7.6

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  parent reply	other threads:[~2013-12-06  9:12 UTC|newest]

Thread overview: 19+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2013-12-06  9:12 [PATCH v2 1/6] sched/numa: fix set cpupid on page migration twice Wanpeng Li
2013-12-06  9:12 ` [PATCH v2 2/6] sched/numa: drop idx field of task_numa_env struct Wanpeng Li
2013-12-06  9:12 ` [PATCH v2 3/6] sched/numa: drop sysctl_numa_balancing_settle_count sysctl Wanpeng Li
2013-12-06 16:56   ` Mel Gorman
2013-12-08  3:02   ` Rik van Riel
2013-12-06  9:12 ` Wanpeng Li [this message]
2013-12-06 16:57   ` [PATCH v2 4/6] sched/numa: use wrapper function task_node to get node which task is on Mel Gorman
2013-12-06 21:09   ` Naoya Horiguchi
2013-12-08  0:05     ` Wanpeng Li
2013-12-08  3:13   ` Rik van Riel
2013-12-06  9:12 ` [PATCH v2 5/6] sched/numa: make numamigrate_isolate_page static Wanpeng Li
2013-12-06 21:19   ` Naoya Horiguchi
2013-12-08  3:10     ` Wanpeng Li
2013-12-06  9:12 ` [PATCH v2 6/6] sched/numa: make numamigrate_update_ratelimit static Wanpeng Li
2013-12-08  3:14   ` Rik van Riel
2013-12-06 16:56 ` [PATCH v2 1/6] sched/numa: fix set cpupid on page migration twice Mel Gorman
2013-12-08  0:06   ` Wanpeng Li
2013-12-08  1:11 ` Rik van Riel
2013-12-08  1:19   ` Wanpeng Li

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