[WATCHDOG] Add a 00-INDEX file to Documentation/watchdog/

[cascardo/linux.git] / kernel / sched_fair.c

diff --git a/kernel/sched_fair.c b/kernel/sched_fair.c
index e91db32..fedbb51 100644 (file)
--- a/kernel/sched_fair.c
+++ b/kernel/sched_fair.c
@@ -75,7 +75,7 @@ enum {
 
 unsigned int sysctl_sched_features __read_mostly =
                SCHED_FEAT_FAIR_SLEEPERS        *1 |
-               SCHED_FEAT_SLEEPER_AVG          *1 |
+               SCHED_FEAT_SLEEPER_AVG          *0 |
                SCHED_FEAT_SLEEPER_LOAD_AVG     *1 |
                SCHED_FEAT_PRECISE_CPU_LOAD     *1 |
                SCHED_FEAT_START_DEBIT          *1 |
@@ -304,11 +304,9 @@ __update_curr(struct cfs_rq *cfs_rq, struct sched_entity *curr)
        delta_mine = calc_delta_mine(delta_exec, curr->load.weight, lw);
 
        if (cfs_rq->sleeper_bonus > sysctl_sched_granularity) {
-               delta = calc_delta_mine(cfs_rq->sleeper_bonus,
-                                       curr->load.weight, lw);
-               if (unlikely(delta > cfs_rq->sleeper_bonus))
-                       delta = cfs_rq->sleeper_bonus;
-
+               delta = min(cfs_rq->sleeper_bonus, (u64)delta_exec);
+               delta = calc_delta_mine(delta, curr->load.weight, lw);
+               delta = min((u64)delta, cfs_rq->sleeper_bonus);
                cfs_rq->sleeper_bonus -= delta;
                delta_mine -= delta;
        }
@@ -521,6 +519,8 @@ static void __enqueue_sleeper(struct cfs_rq *cfs_rq, struct sched_entity *se)
         * Track the amount of bonus we've given to sleepers:
         */
        cfs_rq->sleeper_bonus += delta_fair;
+       if (unlikely(cfs_rq->sleeper_bonus > sysctl_sched_runtime_limit))
+               cfs_rq->sleeper_bonus = sysctl_sched_runtime_limit;
 
        schedstat_add(cfs_rq, wait_runtime, se->wait_runtime);
 }
@@ -959,13 +959,12 @@ load_balance_fair(struct rq *this_rq, int this_cpu, struct rq *busiest,
        for_each_leaf_cfs_rq(busiest, busy_cfs_rq) {
 #ifdef CONFIG_FAIR_GROUP_SCHED
                struct cfs_rq *this_cfs_rq;
-               long imbalances;
+               long imbalance;
                unsigned long maxload;
 
                this_cfs_rq = cpu_cfs_rq(busy_cfs_rq, this_cpu);
 
-               imbalance = busy_cfs_rq->load.weight -
-                                                this_cfs_rq->load.weight;
+               imbalance = busy_cfs_rq->load.weight - this_cfs_rq->load.weight;
                /* Don't pull if this_cfs_rq has more load than busy_cfs_rq */
                if (imbalance <= 0)
                        continue;
@@ -976,7 +975,7 @@ load_balance_fair(struct rq *this_rq, int this_cpu, struct rq *busiest,
 
                *this_best_prio = cfs_rq_best_prio(this_cfs_rq);
 #else
-#define maxload rem_load_move
+# define maxload rem_load_move
 #endif
                /* pass busy_cfs_rq argument into
                 * load_balance_[start|next]_fair iterators