sched: Replace update_shares weight distribution with per-entity computation
Now that the machinery in place is in place to compute contributed load in a
bottom up fashion; replace the shares distribution code within update_shares()
accordingly.
Signed-off-by: Paul Turner <pjt@google.com>
Reviewed-by: Ben Segall <bsegall@google.com>
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/20120823141507.061208672@google.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
diff --git a/kernel/sched/sched.h b/kernel/sched/sched.h
index d13bce7..0a75a43 100644
--- a/kernel/sched/sched.h
+++ b/kernel/sched/sched.h
@@ -234,11 +234,21 @@
u64 runnable_load_avg, blocked_load_avg;
atomic64_t decay_counter, removed_load;
u64 last_decay;
+
#ifdef CONFIG_FAIR_GROUP_SCHED
u32 tg_runnable_contrib;
u64 tg_load_contrib;
-#endif
-#endif
+#endif /* CONFIG_FAIR_GROUP_SCHED */
+
+ /*
+ * h_load = weight * f(tg)
+ *
+ * Where f(tg) is the recursive weight fraction assigned to
+ * this group.
+ */
+ unsigned long h_load;
+#endif /* CONFIG_SMP */
+
#ifdef CONFIG_FAIR_GROUP_SCHED
struct rq *rq; /* cpu runqueue to which this cfs_rq is attached */
@@ -254,28 +264,6 @@
struct list_head leaf_cfs_rq_list;
struct task_group *tg; /* group that "owns" this runqueue */
-#ifdef CONFIG_SMP
- /*
- * h_load = weight * f(tg)
- *
- * Where f(tg) is the recursive weight fraction assigned to
- * this group.
- */
- unsigned long h_load;
-
- /*
- * Maintaining per-cpu shares distribution for group scheduling
- *
- * load_stamp is the last time we updated the load average
- * load_last is the last time we updated the load average and saw load
- * load_unacc_exec_time is currently unaccounted execution time
- */
- u64 load_avg;
- u64 load_period;
- u64 load_stamp, load_last, load_unacc_exec_time;
-
- unsigned long load_contribution;
-#endif /* CONFIG_SMP */
#ifdef CONFIG_CFS_BANDWIDTH
int runtime_enabled;
u64 runtime_expires;