diff options
Diffstat (limited to 'include/linux/sched.h')
| -rw-r--r-- | include/linux/sched.h | 32 |
1 files changed, 20 insertions, 12 deletions
diff --git a/include/linux/sched.h b/include/linux/sched.h index d722490da030..6682da36b293 100644 --- a/include/linux/sched.h +++ b/include/linux/sched.h @@ -107,14 +107,6 @@ extern unsigned long this_cpu_load(void); extern void calc_global_load(unsigned long ticks); extern void update_cpu_load_nohz(void); -/* Notifier for when a task gets migrated to a new CPU */ -struct task_migration_notifier { - struct task_struct *task; - int from_cpu; - int to_cpu; -}; -extern void register_task_migration_notifier(struct notifier_block *n); - extern unsigned long get_parent_ip(unsigned long addr); extern void dump_cpu_task(int cpu); @@ -1034,6 +1026,9 @@ struct task_struct { #ifdef CONFIG_SMP struct llist_node wake_entry; int on_cpu; + struct task_struct *last_wakee; + unsigned long wakee_flips; + unsigned long wakee_flip_decay_ts; #endif int on_rq; @@ -1398,6 +1393,13 @@ struct task_struct { unsigned long memsw_nr_pages; /* uncharged mem+swap usage */ } memcg_batch; unsigned int memcg_kmem_skip_account; + struct memcg_oom_info { + unsigned int may_oom:1; + unsigned int in_memcg_oom:1; + unsigned int oom_locked:1; + int wakeups; + struct mem_cgroup *wait_on_memcg; + } memcg_oom; #endif #ifdef CONFIG_UPROBES struct uprobe_task *utask; @@ -1532,6 +1534,8 @@ static inline pid_t task_pgrp_nr(struct task_struct *tsk) * Test if a process is not yet dead (at most zombie state) * If pid_alive fails, then pointers within the task structure * can be stale and must not be dereferenced. + * + * Return: 1 if the process is alive. 0 otherwise. */ static inline int pid_alive(struct task_struct *p) { @@ -1543,6 +1547,8 @@ static inline int pid_alive(struct task_struct *p) * @tsk: Task structure to be checked. * * Check if a task structure is the first user space task the kernel created. + * + * Return: 1 if the task structure is init. 0 otherwise. */ static inline int is_global_init(struct task_struct *tsk) { @@ -1894,6 +1900,8 @@ extern struct task_struct *idle_task(int cpu); /** * is_idle_task - is the specified task an idle task? * @p: the task in question. + * + * Return: 1 if @p is an idle task. 0 otherwise. */ static inline bool is_idle_task(const struct task_struct *p) { @@ -2168,15 +2176,15 @@ static inline bool thread_group_leader(struct task_struct *p) * all we care about is that we have a task with the appropriate * pid, we don't actually care if we have the right task. */ -static inline int has_group_leader_pid(struct task_struct *p) +static inline bool has_group_leader_pid(struct task_struct *p) { - return p->pid == p->tgid; + return task_pid(p) == p->signal->leader_pid; } static inline -int same_thread_group(struct task_struct *p1, struct task_struct *p2) +bool same_thread_group(struct task_struct *p1, struct task_struct *p2) { - return p1->tgid == p2->tgid; + return p1->signal == p2->signal; } static inline struct task_struct *next_thread(const struct task_struct *p) |