52 	lock->flags = 0;  in ttm_lock_init()
84 	if (lock->rw >= 0 && lock->flags == 0) {  in __ttm_read_lock()
95 	int flags, ret;  in ttm_read_lock()  local
99 		flags = PCATCH;  in ttm_read_lock()
102 		flags = 0;  in ttm_read_lock()
107 		ret = -msleep(lock, &lock->lock, flags, wmsg, 0);  in ttm_read_lock()
126 	if (lock->rw >= 0 && lock->flags == 0) {  in __ttm_read_trylock()
130 	} else if (lock->flags == 0) {  in __ttm_read_trylock()
140 	int flags, ret;  in ttm_read_trylock()  local
145 		flags = PCATCH;  in ttm_read_trylock()
148 		flags = 0;  in ttm_read_trylock()
153 		ret = -msleep(lock, &lock->lock, flags, wmsg, 0);  in ttm_read_trylock()
181 	if (lock->rw == 0 && ((lock->flags & ~TTM_WRITE_LOCK_PENDING) == 0)) {  in __ttm_write_lock()
183 		lock->flags &= ~TTM_WRITE_LOCK_PENDING;  in __ttm_write_lock()
186 		lock->flags |= TTM_WRITE_LOCK_PENDING;  in __ttm_write_lock()
195 	int flags, ret;  in ttm_write_lock()  local
199 		flags = PCATCH;  in ttm_write_lock()
202 		flags = 0;  in ttm_write_lock()
208 		ret = -msleep(lock, &lock->lock, flags, wmsg, 0);  in ttm_write_lock()
212 			lock->flags &= ~TTM_WRITE_LOCK_PENDING;  in ttm_write_lock()
235 	if (unlikely(!(lock->flags & TTM_VT_LOCK)))  in __ttm_vt_unlock()
237 	lock->flags &= ~TTM_VT_LOCK;  in __ttm_vt_unlock()
260 		lock->flags &= ~TTM_VT_LOCK_PENDING;  in __ttm_vt_lock()
261 		lock->flags |= TTM_VT_LOCK;  in __ttm_vt_lock()
264 		lock->flags |= TTM_VT_LOCK_PENDING;  in __ttm_vt_lock()
274 	int flags, ret;  in ttm_vt_lock()  local
278 		flags = PCATCH;  in ttm_vt_lock()
281 		flags = 0;  in ttm_vt_lock()
286 		ret = -msleep(lock, &lock->lock, flags, wmsg, 0);  in ttm_vt_lock()
290 			lock->flags &= ~TTM_VT_LOCK_PENDING;  in ttm_vt_lock()
321 	lock->flags &= ~TTM_SUSPEND_LOCK;  in ttm_suspend_unlock()
331 		lock->flags &= ~TTM_SUSPEND_LOCK_PENDING;  in __ttm_suspend_lock()
332 		lock->flags |= TTM_SUSPEND_LOCK;  in __ttm_suspend_lock()
335 		lock->flags |= TTM_SUSPEND_LOCK_PENDING;  in __ttm_suspend_lock()