[PATCH] (2/4) d_move() BKL removal

	default encode_fh() doesn't take dparent_lock around messing
with dereferences of ->d_parent->d_inode->i_....  Fixed.

fs/exportfs/expfs.c

@@ -457,7 +457,6 @@ static int export_encode_fh(struct dentry *dentry, __u32 *fh, int *max_len,
 		   int connectable)
 {
 	struct inode * inode = dentry->d_inode;
-	struct inode *parent = dentry->d_parent->d_inode;
 	int len = *max_len;
 	int type = 1;
 	
@@ -468,8 +467,12 @@ static int export_encode_fh(struct dentry *dentry, __u32 *fh, int *max_len,
 	fh[0] = inode->i_ino;
 	fh[1] = inode->i_generation;
 	if (connectable && !S_ISDIR(inode->i_mode)) {
+		struct inode *parent;
+		read_lock(&dparent_lock);
+		parent = dentry->d_parent->d_inode;
 		fh[2] = parent->i_ino;
 		fh[3] = parent->i_generation;
+		read_unlock(&dparent_lock);
 		len = 4;
 		type = 2;
 	}