* put_block: return a block previously requested with get_block
* alloc_zone: allocate a new zone (to increase the length of a file)
* free_zone: release a zone (when a file is removed)
- * rw_block: read or write a block from the disk itself
* invalidate: remove all the cache blocks on some device
+ *
+ * Private functions:
+ * rw_block: read or write a block from the disk itself
*/
#include "fs.h"
#include "super.h"
FORWARD _PROTOTYPE( void rm_lru, (struct buf *bp) );
+FORWARD _PROTOTYPE( int rw_block, (struct buf *, int) );
/*===========================================================================*
* get_block *