TAKE - fix bug 193, oops in fsstress on extended attributes

[Steve Lord <lord@sgi.com>]

when logging attribute extents, use the correct size for the allocation!
This got introduced back on Oct 10th when in memory extents where
changed to be host byte ordered. An incorrect size was used on an allocation.


Date:  Mon Dec  2 12:28:05 PST 2002
Workarea:  jen.americas.sgi.com:/src/lord/xfs-merge.2.4

The following file(s) were checked into:
  bonnie.engr.sgi.com:/isms/slinx/2.4.x-xfs


Modid:  2.4.x-xfs:slinx:134098a
linux/fs/xfs/xfs_inode_item.c - 1.109
	- use attribute fork size in allocation rather than data fork size