switch simple cases of fget_light to fdget

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
diff --git a/fs/xfs/xfs_dfrag.c b/fs/xfs/xfs_dfrag.c
index e6cdf22..b9b8646 100644
--- a/fs/xfs/xfs_dfrag.c
+++ b/fs/xfs/xfs_dfrag.c
@@ -48,44 +48,44 @@
 	xfs_swapext_t	*sxp)
 {
 	xfs_inode_t     *ip, *tip;
-	struct file	*file, *tmp_file;
-	int		error = 0, fput_needed, fput_needed_tmp;
+	struct fd	f, tmp;
+	int		error = 0;
 
 	/* Pull information for the target fd */
-	file = fget_light((int)sxp->sx_fdtarget, &fput_needed);
-	if (!file) {
+	f = fdget((int)sxp->sx_fdtarget);
+	if (!f.file) {
 		error = XFS_ERROR(EINVAL);
 		goto out;
 	}
 
-	if (!(file->f_mode & FMODE_WRITE) ||
-	    !(file->f_mode & FMODE_READ) ||
-	    (file->f_flags & O_APPEND)) {
+	if (!(f.file->f_mode & FMODE_WRITE) ||
+	    !(f.file->f_mode & FMODE_READ) ||
+	    (f.file->f_flags & O_APPEND)) {
 		error = XFS_ERROR(EBADF);
 		goto out_put_file;
 	}
 
-	tmp_file = fget_light((int)sxp->sx_fdtmp, &fput_needed_tmp);
-	if (!tmp_file) {
+	tmp = fdget((int)sxp->sx_fdtmp);
+	if (!tmp.file) {
 		error = XFS_ERROR(EINVAL);
 		goto out_put_file;
 	}
 
-	if (!(tmp_file->f_mode & FMODE_WRITE) ||
-	    !(tmp_file->f_mode & FMODE_READ) ||
-	    (tmp_file->f_flags & O_APPEND)) {
+	if (!(tmp.file->f_mode & FMODE_WRITE) ||
+	    !(tmp.file->f_mode & FMODE_READ) ||
+	    (tmp.file->f_flags & O_APPEND)) {
 		error = XFS_ERROR(EBADF);
 		goto out_put_tmp_file;
 	}
 
-	if (IS_SWAPFILE(file->f_path.dentry->d_inode) ||
-	    IS_SWAPFILE(tmp_file->f_path.dentry->d_inode)) {
+	if (IS_SWAPFILE(f.file->f_path.dentry->d_inode) ||
+	    IS_SWAPFILE(tmp.file->f_path.dentry->d_inode)) {
 		error = XFS_ERROR(EINVAL);
 		goto out_put_tmp_file;
 	}
 
-	ip = XFS_I(file->f_path.dentry->d_inode);
-	tip = XFS_I(tmp_file->f_path.dentry->d_inode);
+	ip = XFS_I(f.file->f_path.dentry->d_inode);
+	tip = XFS_I(tmp.file->f_path.dentry->d_inode);
 
 	if (ip->i_mount != tip->i_mount) {
 		error = XFS_ERROR(EINVAL);
@@ -105,9 +105,9 @@
 	error = xfs_swap_extents(ip, tip, sxp);
 
  out_put_tmp_file:
-	fput_light(tmp_file, fput_needed_tmp);
+	fdput(tmp);
  out_put_file:
-	fput_light(file, fput_needed);
+	fdput(f);
  out:
 	return error;
 }