diff options
Diffstat (limited to 'kernel/sched_autogroup.h')
| -rw-r--r-- | kernel/sched_autogroup.h | 26 |
1 files changed, 24 insertions, 2 deletions
diff --git a/kernel/sched_autogroup.h b/kernel/sched_autogroup.h index c2f0e7248dca..8bd047142816 100644 --- a/kernel/sched_autogroup.h +++ b/kernel/sched_autogroup.h @@ -1,5 +1,8 @@ #ifdef CONFIG_SCHED_AUTOGROUP +#include <linux/kref.h> +#include <linux/rwsem.h> + struct autogroup { /* * reference doesn't mean how many thread attach to this @@ -13,9 +16,28 @@ struct autogroup { int nice; }; -static inline bool task_group_is_autogroup(struct task_group *tg); +extern void autogroup_init(struct task_struct *init_task); +extern void autogroup_free(struct task_group *tg); + +static inline bool task_group_is_autogroup(struct task_group *tg) +{ + return !!tg->autogroup; +} + +extern bool task_wants_autogroup(struct task_struct *p, struct task_group *tg); + static inline struct task_group * -autogroup_task_group(struct task_struct *p, struct task_group *tg); +autogroup_task_group(struct task_struct *p, struct task_group *tg) +{ + int enabled = ACCESS_ONCE(sysctl_sched_autogroup_enabled); + + if (enabled && task_wants_autogroup(p, tg)) + return p->signal->autogroup->tg; + + return tg; +} + +extern int autogroup_path(struct task_group *tg, char *buf, int buflen); #else /* !CONFIG_SCHED_AUTOGROUP */ |