[PATCH] rd.c blocksize fix

[Alexander Viro]

(fallout from blksize_size[] removal)

rd.c depends on exact value of blocksize being set from the very
beginning.

--- drivers/block/rd.c	Fri May  3 03:26:05 2002
+++ /tmp/rd.c	Mon May  6 03:00:00 2002
@@ -376,6 +376,7 @@
 		rd_bdev[unit] = bdget(kdev_t_to_nr(inode->i_rdev));
 		rd_bdev[unit]->bd_openers++;
 		rd_bdev[unit]->bd_inode->i_mapping->a_ops = &ramdisk_aops;
+		rd_bdev[unit]->bd_block_size = rd_blocksize;
 	}
 
 	return 0;