compat_ptr_ioctl 1812 fs/ceph/dir.c  	.compat_ioctl = compat_ptr_ioctl,
compat_ptr_ioctl 2204 fs/ceph/file.c 	.compat_ioctl = compat_ptr_ioctl,
compat_ptr_ioctl  755 fs/ioctl.c     EXPORT_SYMBOL(compat_ptr_ioctl);
compat_ptr_ioctl 1732 include/linux/fs.h extern long compat_ptr_ioctl(struct file *file, unsigned int cmd,