#ifndef _LINUX_FUTEX_H
#define _LINUX_FUTEX_H
-#include <linux/sched.h>
+#include <linux/compiler.h>
+#include <linux/types.h>
+struct inode;
+struct mm_struct;
+struct task_struct;
union ktime;
/* Second argument to futex syscall */
#define FUTEX_LOCK_PI 6
#define FUTEX_UNLOCK_PI 7
#define FUTEX_TRYLOCK_PI 8
-#define FUTEX_CMP_REQUEUE_PI 9
#define FUTEX_PRIVATE_FLAG 128
#define FUTEX_CMD_MASK ~FUTEX_PRIVATE_FLAG
*/
#define FUTEX_OWNER_DIED 0x40000000
-/*
- * Some processes have been requeued on this PI-futex
- */
-#define FUTEX_WAITER_REQUEUED 0x20000000
-
/*
* The rest of the robust-futex field is for the TID:
*/
-#define FUTEX_TID_MASK 0x0fffffff
+#define FUTEX_TID_MASK 0x3fffffff
/*
* This limit protects against a deliberately circular list.
#define FUT_OFF_MMSHARED 2 /* We set bit 1 if key has a reference on mm */
union futex_key {
- u32 __user *uaddr;
struct {
unsigned long pgoff;
struct inode *inode;
int offset;
} both;
};
-int get_futex_key(u32 __user *uaddr, struct rw_semaphore *shared,
- union futex_key *key);
-void get_futex_key_refs(union futex_key *key);
-void drop_futex_key_refs(union futex_key *key);
#ifdef CONFIG_FUTEX
extern void exit_robust_list(struct task_struct *curr);