[PATCH v2 23/29] maple_tree: Add copy_tree_location() helper

["Liam R. Howlett" <Liam.Howlett@oracle.com>]

Extract the copying of the tree location from one maple state to another
into its own function.  This is used more later.

Signed-off-by: Liam R. Howlett <Liam.Howlett@oracle.com>
---
 lib/maple_tree.c | 18 ++++++++++++------
 1 file changed, 12 insertions(+), 6 deletions(-)

diff --git a/lib/maple_tree.c b/lib/maple_tree.c
index 9b1686fbd2d8e..22f52a9b26a9e 100644
--- a/lib/maple_tree.c
+++ b/lib/maple_tree.c
@@ -3523,6 +3523,17 @@ static bool spanning_ascend(struct maple_copy *cp, struct ma_state *mas,
 	return true;
 }
 
+static inline
+void copy_tree_location(const struct ma_state *src, struct ma_state *dst)
+{
+	dst->node = src->node;
+	dst->offset = src->offset;
+	dst->min = src->min;
+	dst->max = src->max;
+	dst->end = src->end;
+	dst->depth = src->depth;
+}
+
 /*
  * rebalance_ascend() - Ascend the tree and set up for the next loop - if
  * necessary
@@ -3562,12 +3573,7 @@ static inline bool rebalance_ascend(struct maple_copy *cp,
 	}
 
 	cp->height++;
-	mas->node = parent->node;
-	mas->offset = parent->offset;
-	mas->min = parent->min;
-	mas->max = parent->max;
-	mas->end = parent->end;
-	mas->depth = parent->depth;
+	copy_tree_location(parent, mas);
 	wr_mas_setup(wr_mas, mas);
 	return true;
 }
-- 
2.47.3