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Subject[PATCH 38/53] sched/headers: Move the 'root_task_group' declaration to <linux/sched/autogroup.h>
Date
Also remove the duplicate declaration from <linux/init_task.h>.

( That declaration was originally duplicated for dependency hell reasons,
but there's no problem including the much smaller <linux/sched/autogroup.h>
header now, to pick up the right prototype. )

Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
include/linux/init_task.h | 2 --
include/linux/sched.h | 4 ----
include/linux/sched/autogroup.h | 5 +++++
3 files changed, 5 insertions(+), 6 deletions(-)

diff --git a/include/linux/init_task.h b/include/linux/init_task.h
index f6841c19c913..91d9049f0039 100644
--- a/include/linux/init_task.h
+++ b/include/linux/init_task.h
@@ -151,8 +151,6 @@ extern struct group_info init_groups;

extern struct cred init_cred;

-extern struct task_group root_task_group;
-
#ifdef CONFIG_CGROUP_SCHED
# define INIT_CGROUP_SCHED(tsk) \
.sched_task_group = &root_task_group,
diff --git a/include/linux/sched.h b/include/linux/sched.h
index ff02889f092c..6ec22565ecc7 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -1703,10 +1703,6 @@ static inline void set_task_cpu(struct task_struct *p, unsigned int cpu)
extern long sched_setaffinity(pid_t pid, const struct cpumask *new_mask);
extern long sched_getaffinity(pid_t pid, struct cpumask *mask);

-#ifdef CONFIG_CGROUP_SCHED
-extern struct task_group root_task_group;
-#endif /* CONFIG_CGROUP_SCHED */
-
extern int task_can_switch_user(struct user_struct *up,
struct task_struct *tsk);

diff --git a/include/linux/sched/autogroup.h b/include/linux/sched/autogroup.h
index 586bdf37330d..fd6855548d0c 100644
--- a/include/linux/sched/autogroup.h
+++ b/include/linux/sched/autogroup.h
@@ -4,6 +4,7 @@
#include <linux/sched.h>

struct signal_struct;
+struct task_group;
struct seq_file;

#ifdef CONFIG_SCHED_AUTOGROUP
@@ -24,4 +25,8 @@ static inline void sched_autogroup_exit(struct signal_struct *sig) { }
static inline void sched_autogroup_exit_task(struct task_struct *p) { }
#endif

+#ifdef CONFIG_CGROUP_SCHED
+extern struct task_group root_task_group;
+#endif /* CONFIG_CGROUP_SCHED */
+
#endif /* _LINUX_SCHED_AUTOGROUP_H */
--
2.7.4
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