sched/cfs_rq: Change atomic64_t removed_load to atomic_long_t

Similar to runnable_load_avg, blocked_load_avg variable, long type is
enough for removed_load in 64 bit or 32 bit machine.

Then we avoid the expensive atomic64 operations on 32 bit machine.

Signed-off-by: Alex Shi <alex.shi@intel.com>
Reviewed-by: Paul Turner <pjt@google.com>
Tested-by: Vincent Guittot <vincent.guittot@linaro.org>
Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/1371694737-29336-12-git-send-email-alex.shi@intel.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>

1 files changed, 2 insertions, 1 deletions

diff --git a/kernel/sched/sched.h b/kernel/sched/sched.h
index 5585eb25e9a3..705991906fbe 100644
--- a/kernel/sched/sched.h
+++ b/kernel/sched/sched.h
@@ -278,8 +278,9 @@ struct cfs_rq {
          * the FAIR_GROUP_SCHED case).
          */
         unsigned long runnable_load_avg, blocked_load_avg;
-        atomic64_t decay_counter, removed_load;
+        atomic64_t decay_counter;
         u64 last_decay;
+        atomic_long_t removed_load;
 
 #ifdef CONFIG_FAIR_GROUP_SCHED
         /* Required to track per-cpu representation of a task_group */