Getdents implementation in library/vfs/mfs.

Changed readdir, etc. to use getdents

include/minix/callnr.h

@@ -64,6 +64,7 @@
 #define SVRCTL		  77
 #define SYSUNAME	  78
 #define GETSYSINFO	  79	/* to PM or FS */
+#define GETDENTS	  80	/* to FS */
 #define FSTATFS	 	  82	/* to FS */
 #define SELECT            85	/* to FS */
 #define FCHDIR            86	/* to FS */

include/minix/vfsif.h

@@ -128,7 +128,9 @@
 #define REQ_BREAD                38
 #define REQ_BWRITE               39
 
-#define NREQS                    40
+#define REQ_GETDENTS		 40
+
+#define NREQS                    41
 
 #define FS_READY                 57