From: Liam R. Howlett <Liam.Howlett@Oracle.com>
Date: Fri, 5 Mar 2021 16:10:35 +0000 (-0500)
Subject: maple_tree: Fix maple state offset on root expansion
X-Git-Url: https://www.infradead.org/git/?a=commitdiff_plain;h=91045d24ea8cdb1d4f7302170c6a40b5b8d0794c;p=users%2Fjedix%2Flinux-maple.git

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 40e3321a43f8f..78d0fec8669a0 100644
--- 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);