--- include/linux/sched.h

+++ include/linux/sched.h

@@ -552,6 +552,8 @@ struct thread_group_cputimer {

spinlock_t lock;

};

+struct autogroup;

+

/*

* NOTE! "signal_struct" does not have it's own

* locking, because a shared signal_struct always

@@ -618,6 +620,10 @@ struct signal_struct {

struct tty_struct *tty; /* NULL if no tty */

+#ifdef CONFIG_SCHED_AUTOGROUP

+ struct autogroup *autogroup;

+#endif

+

/*

* Cumulative resource counters for dead threads in the group,

* and for reaped dead child processes forked by this group.

@@ -1944,6 +1950,19 @@ int sched_rt_handler(struct ctl_table *t

extern unsigned int sysctl_sched_compat_yield;

+#ifdef CONFIG_SCHED_AUTOGROUP

+extern unsigned int sysctl_sched_autogroup_enabled;

+extern void sched_autogroup_create_attach(struct task_struct *p);

+extern void sched_autogroup_detach(struct task_struct *p);

+extern void sched_autogroup_fork(struct signal_struct *sig);

+extern void sched_autogroup_exit(struct signal_struct *sig);

+#else

+static inline void sched_autogroup_create_attach(struct task_struct *p) { }

+static inline void sched_autogroup_detach(struct task_struct *p) { }

+static inline void sched_autogroup_fork(struct signal_struct *sig) { }

+static inline void sched_autogroup_exit(struct signal_struct *sig) { }

+#endif

+

#ifdef CONFIG_RT_MUTEXES

extern int rt_mutex_getprio(struct task_struct *p);

extern void rt_mutex_setprio(struct task_struct *p, int prio);