switch gfs2, close races

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
diff --git a/fs/gfs2/export.c b/fs/gfs2/export.c
index 97012ec..9023db8 100644
--- a/fs/gfs2/export.c
+++ b/fs/gfs2/export.c
@@ -126,12 +126,7 @@
 
 static struct dentry *gfs2_get_parent(struct dentry *child)
 {
-	struct dentry *dentry;
-
-	dentry = d_obtain_alias(gfs2_lookupi(child->d_inode, &gfs2_qdotdot, 1));
-	if (!IS_ERR(dentry))
-		d_set_d_op(dentry, &gfs2_dops);
-	return dentry;
+	return d_obtain_alias(gfs2_lookupi(child->d_inode, &gfs2_qdotdot, 1));
 }
 
 static struct dentry *gfs2_get_dentry(struct super_block *sb,
@@ -139,7 +134,6 @@
 {
 	struct gfs2_sbd *sdp = sb->s_fs_info;
 	struct inode *inode;
-	struct dentry *dentry;
 
 	inode = gfs2_ilookup(sb, inum->no_addr);
 	if (inode) {
@@ -156,10 +150,7 @@
 		return ERR_CAST(inode);
 
 out_inode:
-	dentry = d_obtain_alias(inode);
-	if (!IS_ERR(dentry))
-		d_set_d_op(dentry, &gfs2_dops);
-	return dentry;
+	return d_obtain_alias(inode);
 }
 
 static struct dentry *gfs2_fh_to_dentry(struct super_block *sb, struct fid *fid,
diff --git a/fs/gfs2/ops_fstype.c b/fs/gfs2/ops_fstype.c
index 2aeabd4..693f447 100644
--- a/fs/gfs2/ops_fstype.c
+++ b/fs/gfs2/ops_fstype.c
@@ -440,7 +440,6 @@
 		iput(inode);
 		return -ENOMEM;
 	}
-	d_set_d_op(dentry, &gfs2_dops);
 	*dptr = dentry;
 	return 0;
 }
@@ -1106,6 +1105,7 @@
 
 	sb->s_magic = GFS2_MAGIC;
 	sb->s_op = &gfs2_super_ops;
+	sb->s_d_op = &gfs2_dops;
 	sb->s_export_op = &gfs2_export_ops;
 	sb->s_xattr = gfs2_xattr_handlers;
 	sb->s_qcop = &gfs2_quotactl_ops;
diff --git a/fs/gfs2/ops_inode.c b/fs/gfs2/ops_inode.c
index 1501db4..ae140c8 100644
--- a/fs/gfs2/ops_inode.c
+++ b/fs/gfs2/ops_inode.c
@@ -106,8 +106,6 @@
 {
 	struct inode *inode = NULL;
 
-	d_set_d_op(dentry, &gfs2_dops);
-
 	inode = gfs2_lookupi(dir, &dentry->d_name, 0);
 	if (inode && IS_ERR(inode))
 		return ERR_CAST(inode);