50 	unsigned int sleep_flags;  in snapshot_open()  local
56 	sleep_flags = lock_system_sleep();  in snapshot_open()
102 	unlock_system_sleep(sleep_flags);  in snapshot_open()
110 	unsigned int sleep_flags;  in snapshot_release()  local
112 	sleep_flags = lock_system_sleep();  in snapshot_release()
129 	unlock_system_sleep(sleep_flags);  in snapshot_release()
139 	unsigned int sleep_flags;  in snapshot_read()  local
142 	sleep_flags = lock_system_sleep();  in snapshot_read()
163 	unlock_system_sleep(sleep_flags);  in snapshot_read()
173 	unsigned long sleep_flags;  in snapshot_write()  local
181 	sleep_flags = lock_system_sleep();  in snapshot_write()
203 	unlock_system_sleep(sleep_flags);  in snapshot_write()