Merge remote-tracking branch 'lsk/linux-linaro-lsk-v3.18' into linux-linaro-lsk-v3.18-rt

Signed-off-by: Anders Roxell <anders.roxell@linaro.org>

Conflicts:
	kernel/futex.c
	kernel/printk/printk.c
	kernel/softirq.c
	mm/slub.c
	mm/swap.c