[PATCH v2 1/2] maple_tree: remove maple_big_node.parent

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The member parent of maple_big_node is never used.

Let's remove it which could reduce the number of space to be cleared on
memset.

Signed-off-by: Wei Yang <richard.weiyang@xxxxxxxxx>
CC: Liam R. Howlett <Liam.Howlett@xxxxxxxxxx>
---
 lib/maple_tree.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/lib/maple_tree.c b/lib/maple_tree.c
index 4e08dd5e391b..c3370c7449c2 100644
--- a/lib/maple_tree.c
+++ b/lib/maple_tree.c
@@ -120,7 +120,6 @@ static const unsigned char mt_min_slots[] = {
 #define MAPLE_BIG_NODE_GAPS	(MAPLE_ARANGE64_SLOTS * 2 + 1)
 
 struct maple_big_node {
-	struct maple_pnode *parent;
 	unsigned long pivot[MAPLE_BIG_NODE_SLOTS - 1];
 	union {
 		struct maple_enode *slot[MAPLE_BIG_NODE_SLOTS];
-- 
2.34.1





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