maple_tree: Fix maple state offset on root expansion

Signed-off-by: Liam R. Howlett <Liam.Howlett@Oracle.com>

diff --git a/lib/maple_tree.c b/lib/maple_tree.c
index 40e3321a43f8f1312bc97b98b143f738c08c57e2..78d0fec8669a0c37dc5e2279d5fd496c0e197575 100644 (file)
--- a/lib/maple_tree.c
+++ b/lib/maple_tree.c
@@ -3180,6 +3180,7 @@ static inline int mas_root_expand(struct ma_state *mas, void *entry)
                pivots[slot++] = mas->index - 1;
 
        rcu_assign_pointer(slots[slot], entry);
+       mas->offset = slot;
        pivots[slot++] = mas->last;
        mas->depth = 1;
        mas_set_height(mas);