Added jRCU
	modified:   arch/x86/include/asm/thread_info.h
	modified:   include/linux/hardirq.h
	new file:   include/linux/jrcu.h
	modified:   include/linux/kernel.h
	modified:   include/linux/preempt.h
	modified:   include/linux/rcupdate.h
	modified:   include/linux/sched.h
	modified:   init/Kconfig
	modified:   kernel/Makefile
	new file:   kernel/jrcu.c
	modified:   kernel/sched.c