$ sudo find / -name "uaccess.h"
/usr/src/linux-4.14.40/arch/alpha/include/asm/uaccess.h
/usr/src/linux-4.14.40/arch/arc/include/asm/uaccess.h
/usr/src/linux-4.14.40/arch/arm/include/asm/uaccess.h
/usr/src/linux-4.14.40/arch/arm64/include/asm/uaccess.h
/usr/src/linux-4.14.40/arch/blackfin/include/asm/uaccess.h
/usr/src/linux-4.14.40/arch/c6x/include/asm/uaccess.h
/usr/src/linux-4.14.40/arch/cris/include/arch-v10/arch/uaccess.h
/usr/src/linux-4.14.40/arch/cris/include/arch-v32/arch/uaccess.h
/usr/src/linux-4.14.40/arch/cris/include/asm/uaccess.h
/usr/src/linux-4.14.40/arch/frv/include/asm/uaccess.h
/usr/src/linux-4.14.40/arch/h8300/include/asm/uaccess.h
/usr/src/linux-4.14.40/arch/hexagon/include/asm/uaccess.h
/usr/src/linux-4.14.40/arch/ia64/include/asm/uaccess.h
/usr/src/linux-4.14.40/arch/m32r/include/asm/uaccess.h
/usr/src/linux-4.14.40/arch/m68k/include/asm/uaccess.h
/usr/src/linux-4.14.40/arch/metag/include/asm/uaccess.h
/usr/src/linux-4.14.40/arch/microblaze/include/asm/uaccess.h
/usr/src/linux-4.14.40/arch/mips/include/asm/uaccess.h
/usr/src/linux-4.14.40/arch/mn10300/include/asm/uaccess.h
/usr/src/linux-4.14.40/arch/nios2/include/asm/uaccess.h
/usr/src/linux-4.14.40/arch/openrisc/include/asm/uaccess.h
/usr/src/linux-4.14.40/arch/parisc/include/asm/uaccess.h
/usr/src/linux-4.14.40/arch/powerpc/include/asm/uaccess.h
/usr/src/linux-4.14.40/arch/s390/include/asm/uaccess.h
/usr/src/linux-4.14.40/arch/score/include/asm/uaccess.h
/usr/src/linux-4.14.40/arch/sh/include/asm/uaccess.h
/usr/src/linux-4.14.40/arch/sparc/include/asm/uaccess.h
/usr/src/linux-4.14.40/arch/tile/include/asm/uaccess.h
/usr/src/linux-4.14.40/arch/um/include/asm/uaccess.h
/usr/src/linux-4.14.40/arch/unicore32/include/asm/uaccess.h
/usr/src/linux-4.14.40/arch/x86/include/asm/uaccess.h
/usr/src/linux-4.14.40/arch/xtensa/include/asm/uaccess.h
/usr/src/linux-4.14.40/include/asm-generic/uaccess.h
/usr/src/linux-4.14.40/include/linux/uaccess.h
/usr/src/linux-4.14.40/tools/perf/util/include/asm/uaccess.h
/usr/src/linux-4.14.40/tools/virtio/linux/uaccess.h
/usr/src/linux-4.19.1/arch/alpha/include/asm/uaccess.h
/usr/src/linux-4.19.1/arch/arc/include/asm/uaccess.h
/usr/src/linux-4.19.1/arch/arm/include/asm/uaccess.h
/usr/src/linux-4.19.1/arch/arm64/include/asm/uaccess.h
/usr/src/linux-4.19.1/arch/c6x/include/asm/uaccess.h
/usr/src/linux-4.19.1/arch/h8300/include/asm/uaccess.h
/usr/src/linux-4.19.1/arch/hexagon/include/asm/uaccess.h
/usr/src/linux-4.19.1/arch/ia64/include/asm/uaccess.h
/usr/src/linux-4.19.1/arch/m68k/include/asm/uaccess.h
/usr/src/linux-4.19.1/arch/microblaze/include/asm/uaccess.h
/usr/src/linux-4.19.1/arch/mips/include/asm/uaccess.h
/usr/src/linux-4.19.1/arch/nds32/include/asm/uaccess.h
/usr/src/linux-4.19.1/arch/nios2/include/asm/uaccess.h
/usr/src/linux-4.19.1/arch/openrisc/include/asm/uaccess.h
/usr/src/linux-4.19.1/arch/parisc/include/asm/uaccess.h
/usr/src/linux-4.19.1/arch/powerpc/include/asm/uaccess.h
/usr/src/linux-4.19.1/arch/riscv/include/asm/uaccess.h
/usr/src/linux-4.19.1/arch/s390/include/asm/uaccess.h
/usr/src/linux-4.19.1/arch/sh/include/asm/uaccess.h
/usr/src/linux-4.19.1/arch/sparc/include/asm/uaccess.h
/usr/src/linux-4.19.1/arch/um/include/asm/uaccess.h
/usr/src/linux-4.19.1/arch/unicore32/include/asm/uaccess.h
/usr/src/linux-4.19.1/arch/x86/include/asm/uaccess.h
/usr/src/linux-4.19.1/arch/xtensa/include/asm/uaccess.h
/usr/src/linux-4.19.1/include/asm-generic/uaccess.h
/usr/src/linux-4.19.1/include/linux/uaccess.h
/usr/src/linux-4.19.1/tools/perf/util/include/asm/uaccess.h
/usr/src/linux-4.19.1/tools/virtio/linux/uaccess.h