Merge branch 'akpm-current/current'

Documentation/ABI/testing/sysfs-class-bdi

Documentation/blockdev/zram.txt

Documentation/cgroup-v2.txt

Documentation/features/vm/pte_special/arch-support.txt

Documentation/sysctl/fs.txt

arch/Kconfig

arch/arc/Kconfig

arch/arc/include/asm/pgtable.h

arch/arm/Kconfig

arch/arm/include/asm/page.h

arch/arm/include/asm/pgtable-3level.h

arch/arm64/Kconfig

arch/arm64/include/asm/pgtable.h

arch/powerpc/Kconfig

arch/powerpc/include/asm/book3s/64/pgtable.h

arch/powerpc/include/asm/pte-common.h

arch/riscv/Kconfig

arch/riscv/include/asm/pgtable-bits.h

arch/s390/Kconfig

arch/s390/include/asm/pgtable.h