[linux-vr-cvsupdate] Update to module linux

[Michael K. <mf...@us...>]

Update of /cvsroot/linux-vr/linux/arch/mips/kernel
In directory slayer.i.sourceforge.net:/tmp/cvs-serv8485/arch/mips/kernel

Modified Files:
	r2300_switch.S r4k_switch.S traps.c 
Log Message:
Last few bits of ll/sc emulation.  This is not a complete duplication of
the functionality of those instructions on CPUs that have them, but it
should suffice for any user program that is using them in a sane manner
to synchronize between 2 or more user threads.

This is completely untested at this point.