redhat linux 2.4.20-28 & gm 1.5-21

I'm upgrading the kernel on my various linux boxes and have come to a
bit of a problem with our beowulf cluster.  gm will not build, it gripes
about not enough arguments to remap_page_range in
drivers/linux/gm/gm_arch.c, and indeed, there are only 4 arguments
passed there, and in /usr/src/linux/include/linux/mm.h, the prototype
for remap_page_range specifies 5 arguments.  I know the recent kernel
patch was to correct a potential bounds problem in do_remap, could this
have possible broken the gm driver ?

Thanks,

Todd