From: NeilBrown <neilb@suse.de>
Date: Thu, 10 Jun 2010 06:02:14 +0000 (+1000)
Subject: grow_index_tree: handle B_Root correctly
X-Git-Url: http://git.neil.brown.name/?a=commitdiff_plain;h=5ed43a3a5cf040beeee00eac34144f57585b89c8;p=LaFS.git

grow_index_tree: handle B_Root correctly

When a grow the index tree for the root inode, the B_Root
bit needs to be moved to the new block.

Signed-off-by: NeilBrown <neilb@suse.de>
---

diff --git a/modify.c b/modify.c
index 4f70400..ac67430 100644
--- a/modify.c
+++ b/modify.c
@@ -454,8 +454,10 @@ static void grow_index_tree(struct indexblock *ib, struct indexblock *new)
 	ib->data = new->data;  new->data = NULL;
 	clear_bit(B_InoIdx, &ib->b.flags);
 	lafs_hash_iblock(ib);
-
 	set_bit(B_InoIdx, &new->b.flags);
+	if (test_and_clear_bit(B_Root, &ib->b.flags))
+		set_bit(B_Root, &new->b.flags);
+
 	new->b.fileaddr = 0;
 	new->b.inode = ib->b.inode;
 	new->b.parent = ib->b.parent;