Merge remote-tracking branch 'userns/for-next'

diff --cc arch/alpha/kernel/osf_sys.c
Simple merge

diff --cc arch/alpha/kernel/traps.c
Simple merge

diff --cc arch/arm/kernel/signal.c
Simple merge

diff --cc arch/arm/tools/syscall.tbl
Simple merge

diff --cc arch/arm64/kernel/signal.c
Simple merge

diff --cc arch/arm64/kernel/signal32.c
Simple merge

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

diff --cc fs/buffer.c
Simple merge

diff --cc include/linux/sched/signal.h
Simple merge

diff --cc include/linux/syscalls.h
Simple merge

diff --cc kernel/seccomp.c
Simple merge

diff --cc kernel/signal.c
Simple merge