perfcounters: add task migrations counter

Impact: add new feature, new sw counter

Add a counter that counts the number of cross-CPU migrations a
task is suffering.

Signed-off-by: Ingo Molnar <mingo@elte.hu>

1 files changed, 2 insertions, 1 deletions

diff --git a/include/linux/sched.h b/include/linux/sched.h
index 4c530278391b..2e15be8fc792 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -1014,6 +1014,8 @@ struct sched_entity {
         u64                     last_wakeup;
         u64                     avg_overlap;
 
+        u64                     nr_migrations;
+
 #ifdef CONFIG_SCHEDSTATS
         u64                     wait_start;
         u64                     wait_max;
@@ -1029,7 +1031,6 @@ struct sched_entity {
         u64                     exec_max;
         u64                     slice_max;
 
-        u64                     nr_migrations;
         u64                     nr_migrations_cold;
         u64                     nr_failed_migrations_affine;
         u64                     nr_failed_migrations_running;