Reported-by: Brian Foster <bfoster@xxxxxxxxxx>
Signed-off-by: Christoph Hellwig <hch@xxxxxx>
---
fs/xfs/libxfs/xfs_iext_tree.c | 8 ++++++++
1 file changed, 8 insertions(+)
diff --git a/fs/xfs/libxfs/xfs_iext_tree.c b/fs/xfs/libxfs/xfs_iext_tree.c
index 85d7f708eafc..c28a24aca9c5 100644
--- a/fs/xfs/libxfs/xfs_iext_tree.c
+++ b/fs/xfs/libxfs/xfs_iext_tree.c
@@ -525,6 +525,10 @@ xfs_iext_insert_node(
if (nr_entries == KEYS_PER_NODE)
new = xfs_iext_split_node(&node, &pos, &nr_entries);
+ /*
+ * Update the pointers in higher levels if the first entry changes
+ * in an existing node.
+ */
if (node != new && pos == 0 && nr_entries > 0)
xfs_iext_update_node(ifp, node->keys[0], offset, level, node);
@@ -643,6 +647,10 @@ xfs_iext_insert(
if (nr_entries == RECS_PER_LEAF)
new = xfs_iext_split_leaf(cur, &nr_entries);
+ /*
+ * Update the pointers in higher levels if the first entry changes
+ * in an existing node.
+ */
if (cur->leaf != new && cur->pos == 0 && nr_entries > 0) {
xfs_iext_update_node(ifp, xfs_iext_leaf_key(cur->leaf, 0),
offset, 1, cur->leaf);
--
2.14.2
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