diff options
Diffstat (limited to 'include/linux/sched/task_stack.h')
| -rw-r--r-- | include/linux/sched/task_stack.h | 19 |
1 files changed, 4 insertions, 15 deletions
diff --git a/include/linux/sched/task_stack.h b/include/linux/sched/task_stack.h index d2117e1c8fa5..6c2fef89a4fd 100644 --- a/include/linux/sched/task_stack.h +++ b/include/linux/sched/task_stack.h @@ -8,6 +8,7 @@ #include <linux/sched.h> #include <linux/magic.h> +#include <linux/refcount.h> #include <linux/kasan.h> #ifdef CONFIG_THREAD_INFO_IN_TASK @@ -96,23 +97,11 @@ static inline int object_is_on_stack(const void *obj) extern void thread_stack_cache_init(void); #ifdef CONFIG_DEBUG_STACK_USAGE +unsigned long stack_not_used(struct task_struct *p); +#else static inline unsigned long stack_not_used(struct task_struct *p) { - unsigned long *n = end_of_stack(p); - - do { /* Skip over canary */ -# ifdef CONFIG_STACK_GROWSUP - n--; -# else - n++; -# endif - } while (!*n); - -# ifdef CONFIG_STACK_GROWSUP - return (unsigned long)end_of_stack(p) - (unsigned long)n; -# else - return (unsigned long)n - (unsigned long)end_of_stack(p); -# endif + return 0; } #endif extern void set_task_stack_end_magic(struct task_struct *tsk); |