ksys_fchown 733 fs/open.c return ksys_fchown(fd, user, group); ksys_fchown 1242 include/linux/syscalls.h int ksys_fchown(unsigned int fd, uid_t user, gid_t group); ksys_fchown 338 init/initramfs.c ksys_fchown(wfd, uid, gid); ksys_fchown 35 kernel/uid16.c return ksys_fchown(fd, low2highuid(user), low2highgid(group));