sched: Make separate sched*.c translation units

[mirror_ubuntu-zesty-kernel.git] / kernel / sched_autogroup.h

diff --git a/kernel/sched_autogroup.h b/kernel/sched_autogroup.h
index c2f0e7248dca354bc2e96ea95984c3457d28e75d..8bd047142816dea81894bb27ccc3c78a38ac3d61 100644 (file)
--- 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 */