Replaced add64, add64u and add64ul with operators.

Change-Id: Ia537f83e15cb686f1b81b34d73596f4298b0a924

servers/ext2/read.c

@@ -185,9 +185,9 @@ int fs_breadwrite(void)
 	  if (rdwt_err < 0) break;
 
 	  /* Update counters and pointers. */
-	  nrbytes -= chunk;	        /* bytes yet to be read */
-	  cum_io += chunk;	        /* bytes read so far */
-	  position = add64ul(position, chunk);	/* position within the file */
+	  nrbytes -= chunk;	/* bytes yet to be read */
+	  cum_io += chunk;	/* bytes read so far */
+	  position += chunk;	/* position within the file */
   }
 
   fs_m_out.RES_SEEK_POS_LO = ex64lo(position);

servers/iso9660fs/read.c

@@ -119,9 +119,9 @@ int fs_bread(void)
     if (rdwt_err < 0) break;
     
     /* Update counters and pointers. */
-    nrbytes -= chunk;	        /* bytes yet to be read */
-    cum_io += chunk;	        /* bytes read so far */
-    position= add64ul(position, chunk);	/* position within the file */
+    nrbytes -= chunk;	/* bytes yet to be read */
+    cum_io += chunk;	/* bytes read so far */
+    position += chunk;	/* position within the file */
   }
   
   fs_m_out.RES_SEEK_POS_LO = ex64lo(position); 

servers/iso9660fs/super.c

@@ -108,7 +108,7 @@ int read_vds(
       /* I dont need to save anything about it */
       vol_ok = TRUE;
 
-    offset = add64u(offset,ISO9660_MIN_BLOCK_SIZE);
+    offset += ISO9660_MIN_BLOCK_SIZE;
   }
 
   if (vol_ok == FALSE)

servers/mfs/read.c

@@ -194,9 +194,9 @@ int fs_breadwrite(void)
 	  if (lmfs_rdwt_err() < 0) break;
 
 	  /* Update counters and pointers. */
-	  nrbytes -= chunk;	        /* bytes yet to be read */
-	  cum_io += chunk;	        /* bytes read so far */
-	  position = add64ul(position, chunk);	/* position within the file */
+	  nrbytes -= chunk;	/* bytes yet to be read */
+	  cum_io += chunk;	/* bytes read so far */
+	  position += chunk;	/* position within the file */
   }
   
   fs_m_out.RES_SEEK_POS_LO = ex64lo(position); 

servers/vfs/open.c

@@ -615,7 +615,7 @@ int actual_lseek(message *m_out, int seekfd, int seekwhence, off_t offset)
   }
 
   if (offset >= 0)
-	newpos = add64ul(pos, offset);
+	newpos = pos + offset;
   else
 	newpos = sub64ul(pos, -offset);
 

servers/vfs/read.c

@@ -181,7 +181,7 @@ int read_write(struct fproc *rfp, int rw_flag, struct filp *f,
 		   suspend_reopen);
 	if (r >= 0) {
 		cum_io = r;
-		position = add64ul(position, r);
+		position += r;
 		r = OK;
 	}
   } else if (S_ISBLK(vp->v_mode)) {	/* Block special files. */