Log replay of clustered inodes currently ignores the flushiter
field in the inode that is used to determine if the on-disk inode
is more up to date than the copy in the log.  As a result during
log replay the newer inode is being overwritten with an older
version and file size updates are being lost.

I haven't handled the case of the flushiter counter overflowing
but that shouldn't be a problem in this case.  The log buffer
contains newly created inodes so their flushiter values will be 0
and the on-disk inodes should not be much greater.

Lachlan