futex: Move futex exit handling into futex code

[mirror_ubuntu-bionic-kernel.git] / include / linux / futex.h

diff --git a/include/linux/futex.h b/include/linux/futex.h
index c0fb9a24bbd245c980723bce4b0dc5777bd4fb64..bc4138b87035530021c86339fff9554b2935b617 100644 (file)
--- a/include/linux/futex.h
+++ b/include/linux/futex.h
@@ -2,7 +2,9 @@
 #ifndef _LINUX_FUTEX_H
 #define _LINUX_FUTEX_H
 
+#include <linux/sched.h>
 #include <linux/ktime.h>
+
 #include <uapi/linux/futex.h>
 
 struct inode;
@@ -12,9 +14,6 @@ struct task_struct;
 long do_futex(u32 __user *uaddr, int op, u32 val, ktime_t *timeout,
              u32 __user *uaddr2, u32 val2, u32 val3);
 
-extern int
-handle_futex_death(u32 __user *uaddr, struct task_struct *curr, int pi);
-
 /*
  * Futexes are matched on equal values of this key.
  * The key type depends on whether it's a shared or private mapping.
@@ -54,24 +53,24 @@ union futex_key {
 #define FUTEX_KEY_INIT (union futex_key) { .both = { .ptr = NULL } }
 
 #ifdef CONFIG_FUTEX
-extern void exit_robust_list(struct task_struct *curr);
-#ifdef CONFIG_HAVE_FUTEX_CMPXCHG
-#define futex_cmpxchg_enabled 1
-#else
-extern int futex_cmpxchg_enabled;
-#endif
-#else
-static inline void exit_robust_list(struct task_struct *curr)
+
+static inline void futex_init_task(struct task_struct *tsk)
 {
-}
+       tsk->robust_list = NULL;
+#ifdef CONFIG_COMPAT
+       tsk->compat_robust_list = NULL;
 #endif
+       INIT_LIST_HEAD(&tsk->pi_state_list);
+       tsk->pi_state_cache = NULL;
+}
+
+void futex_mm_release(struct task_struct *tsk);
 
-#ifdef CONFIG_FUTEX_PI
-extern void exit_pi_state_list(struct task_struct *curr);
+long do_futex(u32 __user *uaddr, int op, u32 val, ktime_t *timeout,
+             u32 __user *uaddr2, u32 val2, u32 val3);
 #else
-static inline void exit_pi_state_list(struct task_struct *curr)
-{
-}
+static inline void futex_init_task(struct task_struct *tsk) { }
+static inline void futex_mm_release(struct task_struct *tsk) { }
 #endif
 
 #endif