bool fixup_device_block_write_error(DCR *dcr, DEV_BLOCK *block);
void _lock_device(const char *file, int line, DEVICE *dev);
void _unlock_device(const char *file, int line, DEVICE *dev);
bool fixup_device_block_write_error(DCR *dcr, DEV_BLOCK *block);
void _lock_device(const char *file, int line, DEVICE *dev);
void _unlock_device(const char *file, int line, DEVICE *dev);