[PATCH 3/3] maple_tree: we don't set offset to MAPLE_NODE_SLOTS on error

[Wei Yang]

When mas_anode_descend() not find gap, it sets -EBUSY instead of setting
offset to MAPLE_NODE_SLOTS.

Signed-off-by: Wei Yang <richard.weiyang at gmail.com>
CC: Liam R. Howlett <Liam.Howlett at Oracle.com>
CC: Lorenzo Stoakes <lorenzo.stoakes at oracle.com>
CC: Sidhartha Kumar <sidhartha.kumar at oracle.com>
---
 lib/maple_tree.c | 7 ++-----
 1 file changed, 2 insertions(+), 5 deletions(-)

diff --git a/lib/maple_tree.c b/lib/maple_tree.c
index ab235d0194f7..b67dae356182 100644
--- a/lib/maple_tree.c
+++ b/lib/maple_tree.c
@@ -5011,8 +5011,8 @@ static inline void mas_awalk(struct ma_state *mas, unsigned long size)
 	 * There are 4 options:
 	 * go to child (descend)
 	 * go back to parent (ascend)
-	 * no gap found. (return, slot == MAPLE_NODE_SLOTS)
-	 * found the gap. (return, slot != MAPLE_NODE_SLOTS)
+	 * no gap found. (return, error == -EBUSY)
+	 * found the gap. (return)
 	 */
 	while (!mas_is_err(mas) && !mas_anode_descend(mas, size)) {
 		if (last == mas->node)
@@ -5097,9 +5097,6 @@ int mas_empty_area(struct ma_state *mas, unsigned long min,
 		return xa_err(mas->node);
 
 	offset = mas->offset;
-	if (unlikely(offset == MAPLE_NODE_SLOTS))
-		return -EBUSY;
-
 	node = mas_mn(mas);
 	mt = mte_node_type(mas->node);
 	pivots = ma_pivots(node, mt);
-- 
2.34.1