sched: Remove stale power aware scheduling remnants and dysfunctional knobs

[mirror_ubuntu-zesty-kernel.git] / include / linux / sched.h

diff --git a/include/linux/sched.h b/include/linux/sched.h
index 81a173c0897d91c2d5b22b5370d282c7346bd8a9..3d644809c9db30e91d03c5509f34179122de4914 100644 (file)
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -855,61 +855,14 @@ enum cpu_idle_type {
 #define SD_WAKE_AFFINE         0x0020  /* Wake task to waking CPU */
 #define SD_PREFER_LOCAL                0x0040  /* Prefer to keep tasks local to this domain */
 #define SD_SHARE_CPUPOWER      0x0080  /* Domain members share cpu power */
-#define SD_POWERSAVINGS_BALANCE        0x0100  /* Balance for power savings */
 #define SD_SHARE_PKG_RESOURCES 0x0200  /* Domain members share cpu pkg resources */
 #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 */
-       POWERSAVINGS_BALANCE_BASIC,     /* Fill one thread/core/package
-                                        * first for long running threads
-                                        */
-       POWERSAVINGS_BALANCE_WAKEUP,    /* Also bias task wakeups to semi-idle
-                                        * cpu package for power savings
-                                        */
-       MAX_POWERSAVINGS_BALANCE_LEVELS
-};
-
-extern int sched_mc_power_savings, sched_smt_power_savings;
-
-static inline int sd_balance_for_mc_power(void)
-{
-       if (sched_smt_power_savings)
-               return SD_POWERSAVINGS_BALANCE;
-
-       if (!sched_mc_power_savings)
-               return SD_PREFER_SIBLING;
-
-       return 0;
-}
-
-static inline int sd_balance_for_package_power(void)
-{
-       if (sched_mc_power_savings | sched_smt_power_savings)
-               return SD_POWERSAVINGS_BALANCE;
-
-       return SD_PREFER_SIBLING;
-}
-
 extern int __weak arch_sd_sibiling_asym_packing(void);
 
-/*
- * Optimise SD flags for power savings:
- * SD_BALANCE_NEWIDLE helps aggressive task consolidation and power savings.
- * Keep default SD flags if sched_{smt,mc}_power_saving=0
- */
-
-static inline int sd_power_saving_flags(void)
-{
-       if (sched_mc_power_savings | sched_smt_power_savings)
-               return SD_BALANCE_NEWIDLE;
-
-       return 0;
-}
-
 struct sched_group_power {
        atomic_t ref;
        /*
@@ -1950,7 +1903,7 @@ static inline int set_cpus_allowed(struct task_struct *p, cpumask_t new_mask)
  */
 extern unsigned long long notrace sched_clock(void);
 /*
- * See the comment in kernel/sched_clock.c
+ * See the comment in kernel/sched/clock.c
  */
 extern u64 cpu_clock(int cpu);
 extern u64 local_clock(void);