eliminating duplication. TYPE should be a string describing the
kind of data BCACHE holds. Statistics are printed using
`printf_filtered' and its ilk. */
-extern void print_bcache_statistics (struct bcache *bcache, char *type);
+extern void print_bcache_statistics (struct bcache *bcache, const char *type);
extern int bcache_memory_used (struct bcache *bcache);
/* The hash functions */