The arbitrary-filehandle-size changes caused some temporary trouble for LFS,
which now should be fixed. Due to an oversight of mine, the internal
fcntl to get the ifile-handle for the cleaner was versioned later than
the syscall versioning, and some of the other changes were buggy.

What this means for LFS users: if you have not yet rebuild userland, you
can use a current kernel and everything seems to work fine now. Of course
a realy current kernel and matching userland should work too.

If, however, you rebuild your userland shortly after the initial changes,
you should update and rebuild both kernel and userland again.

Sorry for the inconvenience and thanks to everyone who helped testing
and fixing.

Martin