xfs: lseek: the "whence" argument is called "whence"

For some reason, the older commit:

    965c8e59 lseek: the "whence" argument is called "whence"

    lseek: the "whence" argument is called "whence"

    But the kernel decided to call it "origin" instead.
    Fix most of the sites.

left out xfs.  So fix xfs.
Signed-off-by: Eric Sandeen <sandeen@redhat.com>
Reviewed-by: Brian Foster <bfoster@redhat.com>
Reviewed-by: Jie Liu <jeff.liu@oracle.com>
Signed-off-by: Dave Chinner <david@fromorbit.com>

fs/xfs/xfs_file.c

@@ -1322,16 +1322,16 @@ STATIC loff_t
 xfs_file_llseek(
 	struct file	*file,
 	loff_t		offset,
-	int		origin)
+	int		whence)
 {
-	switch (origin) {
+	switch (whence) {
 	case SEEK_END:
 	case SEEK_CUR:
 	case SEEK_SET:
-		return generic_file_llseek(file, offset, origin);
+		return generic_file_llseek(file, offset, whence);
 	case SEEK_HOLE:
 	case SEEK_DATA:
-		return xfs_seek_hole_data(file, offset, origin);
+		return xfs_seek_hole_data(file, offset, whence);
 	default:
 		return -EINVAL;
 	}