futex(): spin wait when CPU not oversubscribed and fix lost wake-up bug

2017-01-12 18:50:21 +09:00
parent d646c2a4b9
commit bd47b909bf
7 changed files with 163 additions and 142 deletions
--- a/kernel/include/process.h
+++ b/kernel/include/process.h
@ -759,6 +759,7 @@ extern enum ihk_mc_pt_attribute arch_vrflag_to_ptattr(unsigned long flag, uint64
 enum ihk_mc_pt_attribute common_vrflag_to_ptattr(unsigned long flag, uint64_t fault, pte_t *ptep);

 void schedule(void);
+void spin_sleep_or_schedule(void);
 void runq_add_thread(struct thread *thread, int cpu_id);
 void runq_del_thread(struct thread *thread, int cpu_id);
 int sched_wakeup_thread(struct thread *thread, int valid_states);