Merge branch 'linus' into sched/core

Merge reason: pick up the latest scheduler fixes.

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

1 files changed, 14 insertions, 5 deletions

diff --git a/include/linux/sched.h b/include/linux/sched.h
index 9a9beef3c0fd..341a4d78ddaa 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -808,7 +808,7 @@ enum cpu_idle_type {
  * when BITS_PER_LONG <= 32 are pretty high and the returns do not justify the
  * increased costs.
  */
-#if BITS_PER_LONG > 32
+#if 0 /* BITS_PER_LONG > 32 -- currently broken: it increases power usage under light load  */
 # define SCHED_LOAD_RESOLUTION  10
 # define scale_load(w)          ((w) << SCHED_LOAD_RESOLUTION)
 # define scale_load_down(w)     ((w) >> SCHED_LOAD_RESOLUTION)
@@ -844,6 +844,7 @@ enum cpu_idle_type {
 #define SD_SERIALIZE            0x0400  /* Only a single load balancing instance */
 #define SD_ASYM_PACKING         0x0800  /* Place busy groups earlier in the domain */
 #define SD_PREFER_SIBLING       0x1000  /* Prefer to place tasks in a sibling domain */
+#define SD_OVERLAP              0x2000  /* sched_domains of this level overlap */
 
 enum powersavings_balance_level {
         POWERSAVINGS_BALANCE_NONE = 0,  /* No power saving load balance */
@@ -893,16 +894,21 @@ static inline int sd_power_saving_flags(void)
         return 0;
 }
 
-struct sched_group {
-        struct sched_group *next;       /* Must be a circular list */
+struct sched_group_power {
         atomic_t ref;
-
         /*
          * CPU power of this group, SCHED_LOAD_SCALE being max power for a
          * single CPU.
          */
-        unsigned int cpu_power, cpu_power_orig;
+        unsigned int power, power_orig;
+};
+
+struct sched_group {
+        struct sched_group *next;       /* Must be a circular list */
+        atomic_t ref;
+
         unsigned int group_weight;
+        struct sched_group_power *sgp;
 
         /*
          * The CPUs this group covers.
@@ -1254,6 +1260,9 @@ struct task_struct {
 #ifdef CONFIG_PREEMPT_RCU
         int rcu_read_lock_nesting;
         char rcu_read_unlock_special;
+#if defined(CONFIG_RCU_BOOST) && defined(CONFIG_TREE_PREEMPT_RCU)
+        int rcu_boosted;
+#endif /* #if defined(CONFIG_RCU_BOOST) && defined(CONFIG_TREE_PREEMPT_RCU) */
         struct list_head rcu_node_entry;
 #endif /* #ifdef CONFIG_PREEMPT_RCU */
 #ifdef CONFIG_TREE_PREEMPT_RCU