}
/* Flush a buffer that contains buf_size bytes. Use writes of block_size to do it,
* and shift any remaining bytes back to the head of the buffer when there are
* no more block_size sized IOs left.
*/
}
/* Flush a buffer that contains buf_size bytes. Use writes of block_size to do it,
* and shift any remaining bytes back to the head of the buffer when there are
* no more block_size sized IOs left.
*/