struct mutex ldisc_mutex;
struct tty_ldisc *ldisc;
- struct mutex legacy_mutex;
struct mutex termios_mutex;
spinlock_t ctrl_lock;
/* Termios values are protected by the termios mutex */
/* tty_mutex.c */
/* functions for preparation of BKL removal */
-extern void __lockfunc tty_lock(struct tty_struct *tty);
-extern void __lockfunc tty_unlock(struct tty_struct *tty);
-extern void __lockfunc tty_lock_pair(struct tty_struct *tty,
- struct tty_struct *tty2);
-extern void __lockfunc tty_unlock_pair(struct tty_struct *tty,
- struct tty_struct *tty2);
+extern void __lockfunc tty_lock(void) __acquires(tty_lock);
+extern void __lockfunc tty_unlock(void) __releases(tty_lock);
/*
* this shall be called only from where BTM is held (like close)
static inline void tty_wait_until_sent_from_close(struct tty_struct *tty,
long timeout)
{
- tty_unlock(tty); /* tty->ops->close holds the BTM, drop it while waiting */
+ tty_unlock(); /* tty->ops->close holds the BTM, drop it while waiting */
tty_wait_until_sent(tty, timeout);
- tty_lock(tty);
+ tty_lock();
}
/*
*
* Do not use in new code.
*/
-#define wait_event_interruptible_tty(tty, wq, condition) \
+#define wait_event_interruptible_tty(wq, condition) \
({ \
int __ret = 0; \
if (!(condition)) { \
- __wait_event_interruptible_tty(tty, wq, condition, __ret); \
+ __wait_event_interruptible_tty(wq, condition, __ret); \
} \
__ret; \
})
-#define __wait_event_interruptible_tty(tty, wq, condition, ret) \
+#define __wait_event_interruptible_tty(wq, condition, ret) \
do { \
DEFINE_WAIT(__wait); \
\
if (condition) \
break; \
if (!signal_pending(current)) { \
- tty_unlock(tty); \
+ tty_unlock(); \
schedule(); \
- tty_lock(tty); \
+ tty_lock(); \
continue; \
} \
ret = -ERESTARTSYS; \