Merge branch 'linus' into tracing/sysprof

diff --cc Makefile
Simple merge

diff --cc arch/powerpc/kernel/irq.c
Simple merge

diff --cc arch/x86/Kconfig
Simple merge

diff --cc arch/x86/kernel/Makefile
Simple merge

diff --cc arch/x86/kernel/process_32.c
Simple merge

diff --cc arch/x86/kernel/process_64.c
Simple merge

diff --cc kernel/sched.c
Simple merge