sched/numa: Add debugging

Signed-off-by: Ingo Molnar <mingo@kernel.org>
Reviewed-by: Rik van Riel <riel@redhat.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Mel Gorman <mgorman@suse.de>
Cc: Srikar Dronamraju <srikar@linux.vnet.ibm.com>
Cc: Andrea Arcangeli <aarcange@redhat.com>
Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Link: http://lkml.kernel.org/r/1381141781-10992-53-git-send-email-mgorman@suse.de

1 files changed, 6 insertions, 0 deletions

diff --git a/include/linux/sched.h b/include/linux/sched.h
index f6385107c352..1127a46ac3d2 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -1366,6 +1366,7 @@ struct task_struct {
         unsigned long *numa_faults_buffer;
 
         int numa_preferred_nid;
+        unsigned long numa_pages_migrated;
 #endif /* CONFIG_NUMA_BALANCING */
 
         struct rcu_head rcu;
@@ -2661,6 +2662,11 @@ static inline unsigned int task_cpu(const struct task_struct *p)
         return task_thread_info(p)->cpu;
 }
 
+static inline int task_node(const struct task_struct *p)
+{
+        return cpu_to_node(task_cpu(p));
+}
+
 extern void set_task_cpu(struct task_struct *p, unsigned int cpu);
 
 #else