projects / mirror_ubuntu-disco-kernel.git / blame
| Commit | Line | Data |
|---|---|---|
| 29930025 IM |
1 | #ifndef _LINUX_SCHED_TASK_H |
| 2 | #define _LINUX_SCHED_TASK_H | |
| 3 | ||
| 901b14bd IM |
4 | /* |
| 5 | * Interface between the scheduler and various task lifetime (fork()/exit()) | |
| 6 | * functionality: | |
| 7 | */ | |
| 8 | ||
| 29930025 IM |
9 | #include <linux/sched.h> |
| 10 | ||
| 901b14bd IM |
11 | /* |
| 12 | * This serializes "schedule()" and also protects | |
| 13 | * the run-queue from deletions/modifications (but | |
| 14 | * _adding_ to the beginning of the run-queue has | |
| 15 | * a separate lock). | |
| 16 | */ | |
| 17 | extern rwlock_t tasklist_lock; | |
| 18 | extern spinlock_t mmlist_lock; | |
| 19 | ||
| 20 | #ifdef CONFIG_PROVE_RCU | |
| 21 | extern int lockdep_tasklist_lock_is_held(void); | |
| 22 | #endif /* #ifdef CONFIG_PROVE_RCU */ | |
| 23 | ||
| 24 | extern asmlinkage void schedule_tail(struct task_struct *prev); | |
| 25 | extern void init_idle(struct task_struct *idle, int cpu); | |
| 26 | extern void init_idle_bootup_task(struct task_struct *idle); | |
| 27 | ||
| 901b14bd IM |
28 | extern int sched_fork(unsigned long clone_flags, struct task_struct *p); |
| 29 | extern void sched_dead(struct task_struct *p); | |
| 30 | ||
| 31 | void __noreturn do_task_dead(void); | |
| 32 | ||
| 33 | extern void proc_caches_init(void); | |
| 34 | ||
| 35 | extern void release_task(struct task_struct * p); | |
| 36 | ||
| 37 | #ifdef CONFIG_HAVE_COPY_THREAD_TLS | |
| 38 | extern int copy_thread_tls(unsigned long, unsigned long, unsigned long, | |
| 39 | struct task_struct *, unsigned long); | |
| 40 | #else | |
| 41 | extern int copy_thread(unsigned long, unsigned long, unsigned long, | |
| 42 | struct task_struct *); | |
| 43 | ||
| 44 | /* Architectures that haven't opted into copy_thread_tls get the tls argument | |
| 45 | * via pt_regs, so ignore the tls argument passed via C. */ | |
| 46 | static inline int copy_thread_tls( | |
| 47 | unsigned long clone_flags, unsigned long sp, unsigned long arg, | |
| 48 | struct task_struct *p, unsigned long tls) | |
| 49 | { | |
| 50 | return copy_thread(clone_flags, sp, arg, p); | |
| 51 | } | |
| 52 | #endif | |
| 53 | extern void flush_thread(void); | |
| 54 | ||
| 55 | #ifdef CONFIG_HAVE_EXIT_THREAD | |
| 56 | extern void exit_thread(struct task_struct *tsk); | |
| 57 | #else | |
| 58 | static inline void exit_thread(struct task_struct *tsk) | |
| 59 | { | |
| 60 | } | |
| 61 | #endif | |
| 62 | extern void do_group_exit(int); | |
| 63 | ||
| 64 | extern long _do_fork(unsigned long, unsigned long, unsigned long, int __user *, int __user *, unsigned long); | |
| 65 | extern long do_fork(unsigned long, unsigned long, unsigned long, int __user *, int __user *); | |
| 66 | struct task_struct *fork_idle(int); | |
| 67 | extern pid_t kernel_thread(int (*fn)(void *), void *arg, unsigned long flags); | |
| 68 | ||
| 69 | ||
| 70 | #ifdef CONFIG_ARCH_WANTS_DYNAMIC_TASK_STRUCT | |
| 71 | extern int arch_task_struct_size __read_mostly; | |
| 72 | #else | |
| 73 | # define arch_task_struct_size (sizeof(struct task_struct)) | |
| 74 | #endif | |
| 75 | ||
| 76 | #ifdef CONFIG_VMAP_STACK | |
| 77 | static inline struct vm_struct *task_stack_vm_area(const struct task_struct *t) | |
| 78 | { | |
| 79 | return t->stack_vm_area; | |
| 80 | } | |
| 81 | #else | |
| 82 | static inline struct vm_struct *task_stack_vm_area(const struct task_struct *t) | |
| 83 | { | |
| 84 | return NULL; | |
| 85 | } | |
| 86 | #endif | |
| 87 | ||
| 29930025 | 88 | #endif /* _LINUX_SCHED_TASK_H */ |