switch vfs_getattr() to struct path

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
diff --git a/fs/nfsd/nfs4xdr.c b/fs/nfsd/nfs4xdr.c
index 0dc1158..17e70da 100644
--- a/fs/nfsd/nfs4xdr.c
+++ b/fs/nfsd/nfs4xdr.c
@@ -1997,7 +1997,7 @@
 		if (path.dentry != path.mnt->mnt_root)
 			break;
 	}
-	err = vfs_getattr(path.mnt, path.dentry, stat);
+	err = vfs_getattr(&path, stat);
 	path_put(&path);
 	return err;
 }
@@ -2050,7 +2050,7 @@
 			goto out;
 	}
 
-	err = vfs_getattr(exp->ex_path.mnt, dentry, &stat);
+	err = vfs_getattr(&path, &stat);
 	if (err)
 		goto out_nfserr;
 	if ((bmval0 & (FATTR4_WORD0_FILES_FREE | FATTR4_WORD0_FILES_TOTAL |