[PATCH 47/53] sched/headers: Move kstack_end() from to

Ingo Molnar
2017-02-08T21:29:48Z

This is a task-stack related API, not core scheduler functionality.

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/sched.h | 10 ----------
include/linux/sched/task_stack.h | 10 ++++++++++
2 files changed, 10 insertions(+), 10 deletions(-)

diff --git a/include/linux/sched.h b/include/linux/sched.h
index 2fb6677f861d..0b45211cd8ed 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -1356,16 +1356,6 @@ static inline struct thread_info *task_thread_info(struct task_struct *task)
# define task_thread_info(task) ((struct thread_info *)(task)->stack)
#endif

-#ifndef __HAVE_ARCH_KSTACK_END
-static inline int kstack_end(void *addr)
-{
- /* Reliable end of stack detection:
- * Some APM bios versions misalign the stack
- */
- return !(((unsigned long)addr+sizeof(void*)-1) & (THREAD_SIZE-sizeof(void*)));
-}
-#endif
-
extern struct pid_namespace init_pid_ns;

/*
diff --git a/include/linux/sched/task_stack.h b/include/linux/sched/task_stack.h
index aaa5c2a6a0e9..df6ea6665b31 100644
--- a/include/linux/sched/task_stack.h
+++ b/include/linux/sched/task_stack.h
@@ -108,4 +108,14 @@ static inline unsigned long stack_not_used(struct task_struct *p)
#endif
extern void set_task_stack_end_magic(struct task_struct *tsk);

+#ifndef __HAVE_ARCH_KSTACK_END
+static inline int kstack_end(void *addr)
+{
+ /* Reliable end of stack detection:
+ * Some APM bios versions misalign the stack
+ */
+ return !(((unsigned long)addr+sizeof(void*)-1) & (THREAD_SIZE-sizeof(void*)));
+}
+#endif
+
#endif /* _LINUX_SCHED_TASK_STACK_H */
--
2.7.4