[linuxdc-dev][PATCH] gdrom compile fix

[Robert L. <rm...@te...>]

Two problems prevent gdrom from compiling under kernel 2.4.16 (cvs
module "linux" was recently updated to 2.4.16):

- cdrom_fops global struct was removed in favor or per-driver structs
declaring their block device functions. this patch adds a proper
gdrom_bdops structure and uses it.

- cdrom.c includes asm/segment.h.  arch-sh does not have the header. 
this patch adds a simple segment.h with no defines.  this is standard
practice since segment.h is deprecated (see arch-ia64, for instance).

Without this patch neither cdrom support in general or the gdrom driver
in specific will compile on later kernels.  Can someone merge it into
CVS?

Thanks,

	Robert Love