phys_fd 275 arch/um/include/shared/os.h unsigned long len, int prot, int phys_fd, phys_fd 171 arch/um/os-Linux/skas/mem.c int phys_fd, unsigned long long offset, int done, void **data) phys_fd 175 arch/um/os-Linux/skas/mem.c MAP_SHARED | MAP_FIXED, phys_fd,