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authorAlex Shi <alex.shi@intel.com>2013-06-20 10:18:55 +0800
committerIngo Molnar <mingo@kernel.org>2013-06-27 10:07:41 +0200
commit2509940fd71c2e2915a05052bbdbf2d478364184 (patch)
treee2a9466c8cca831158c18a4c4c750420b11fea30 /kernel/sched/sched.h
parentbf5b986ed4d20428eeec3df4a03dbfebb9b6538c (diff)
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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>
Diffstat (limited to 'kernel/sched/sched.h')
-rw-r--r--kernel/sched/sched.h3
1 files changed, 2 insertions, 1 deletions
diff --git a/kernel/sched/sched.h b/kernel/sched/sched.h
index 5585eb2..7059919 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 */