do_vfs_ioctl 2848 fs/compat_ioctl.c error = do_vfs_ioctl(filp, fd, cmd, arg); do_vfs_ioctl 485 fs/ioctl.c error = do_vfs_ioctl(filp, fd, cmd, arg); do_vfs_ioctl 2057 include/linux/fs.h extern int do_vfs_ioctl(struct file *filp, unsigned int fd, unsigned int cmd,