54 	lock->flags = 0;  in ttm_lock_init()
86 	if (lock->rw >= 0 && lock->flags == 0) {  in __ttm_read_lock()
97 	int flags, ret;  in ttm_read_lock()  local
101 		flags = PCATCH;  in ttm_read_lock()
104 		flags = 0;  in ttm_read_lock()
109 		ret = -msleep(lock, &lock->lock, flags, wmsg, 0);  in ttm_read_lock()
128 	if (lock->rw >= 0 && lock->flags == 0) {  in __ttm_read_trylock()
132 	} else if (lock->flags == 0) {  in __ttm_read_trylock()
142 	int flags, ret;  in ttm_read_trylock()  local
147 		flags = PCATCH;  in ttm_read_trylock()
150 		flags = 0;  in ttm_read_trylock()
155 		ret = -msleep(lock, &lock->lock, flags, wmsg, 0);  in ttm_read_trylock()
183 	if (lock->rw == 0 && ((lock->flags & ~TTM_WRITE_LOCK_PENDING) == 0)) {  in __ttm_write_lock()
185 		lock->flags &= ~TTM_WRITE_LOCK_PENDING;  in __ttm_write_lock()
188 		lock->flags |= TTM_WRITE_LOCK_PENDING;  in __ttm_write_lock()
197 	int flags, ret;  in ttm_write_lock()  local
201 		flags = PCATCH;  in ttm_write_lock()
204 		flags = 0;  in ttm_write_lock()
210 		ret = -msleep(lock, &lock->lock, flags, wmsg, 0);  in ttm_write_lock()
214 			lock->flags &= ~TTM_WRITE_LOCK_PENDING;  in ttm_write_lock()
237 	if (unlikely(!(lock->flags & TTM_VT_LOCK)))  in __ttm_vt_unlock()
239 	lock->flags &= ~TTM_VT_LOCK;  in __ttm_vt_unlock()
262 		lock->flags &= ~TTM_VT_LOCK_PENDING;  in __ttm_vt_lock()
263 		lock->flags |= TTM_VT_LOCK;  in __ttm_vt_lock()
266 		lock->flags |= TTM_VT_LOCK_PENDING;  in __ttm_vt_lock()
276 	int flags, ret;  in ttm_vt_lock()  local
280 		flags = PCATCH;  in ttm_vt_lock()
283 		flags = 0;  in ttm_vt_lock()
288 		ret = -msleep(lock, &lock->lock, flags, wmsg, 0);  in ttm_vt_lock()
292 			lock->flags &= ~TTM_VT_LOCK_PENDING;  in ttm_vt_lock()
323 	lock->flags &= ~TTM_SUSPEND_LOCK;  in ttm_suspend_unlock()
333 		lock->flags &= ~TTM_SUSPEND_LOCK_PENDING;  in __ttm_suspend_lock()
334 		lock->flags |= TTM_SUSPEND_LOCK;  in __ttm_suspend_lock()
337 		lock->flags |= TTM_SUSPEND_LOCK_PENDING;  in __ttm_suspend_lock()