[PATCH 2/2] maple_tree: Add some alloc node test case

From: Liam R. Howlett
Date: Wed Jun 26 2024 - 12:12:54 EST


From: Jiazi Li <jqqlijiazi@xxxxxxxxx>

Add some maple_tree alloc node tese case.

Suggested-by: Liam R. Howlett <Liam.Howlett@xxxxxxxxxx>
Signed-off-by: Jiazi Li <jqqlijiazi@xxxxxxxxx>
Signed-off-by: Liam R. Howlett <Liam.Howlett@xxxxxxxxxx>
---
tools/testing/radix-tree/maple.c | 22 ++++++++++++++++++++++
1 file changed, 22 insertions(+)

diff --git a/tools/testing/radix-tree/maple.c b/tools/testing/radix-tree/maple.c
index 11f1efdf83f9..b4b5fd9f294d 100644
--- a/tools/testing/radix-tree/maple.c
+++ b/tools/testing/radix-tree/maple.c
@@ -462,6 +462,28 @@ static noinline void __init check_new_node(struct maple_tree *mt)
MT_BUG_ON(mt, mas_allocated(&mas) != 10 + MAPLE_ALLOC_SLOTS - 1);
mas_destroy(&mas);

+ mas.node = MA_ERROR(-ENOMEM);
+ mas_node_count(&mas, MAPLE_ALLOC_SLOTS + 1); /* Request */
+ mas_nomem(&mas, GFP_KERNEL); /* Fill request */
+ MT_BUG_ON(mt, mas_allocated(&mas) != MAPLE_ALLOC_SLOTS + 1);
+ mas.node = MA_ERROR(-ENOMEM);
+ mas_node_count(&mas, MAPLE_ALLOC_SLOTS * 2 + 2); /* Request */
+ mas_nomem(&mas, GFP_KERNEL); /* Fill request */
+ mas.status = ma_start;
+ MT_BUG_ON(mt, mas_allocated(&mas) != MAPLE_ALLOC_SLOTS * 2 + 2);
+ mas_destroy(&mas);
+
+ mas.node = MA_ERROR(-ENOMEM);
+ mas_node_count(&mas, MAPLE_ALLOC_SLOTS * 2 + 1); /* Request */
+ mas_nomem(&mas, GFP_KERNEL); /* Fill request */
+ MT_BUG_ON(mt, mas_allocated(&mas) != MAPLE_ALLOC_SLOTS * 2 + 1);
+ mas.node = MA_ERROR(-ENOMEM);
+ mas_node_count(&mas, MAPLE_ALLOC_SLOTS * 3 + 2); /* Request */
+ mas_nomem(&mas, GFP_KERNEL); /* Fill request */
+ mas.status = ma_start;
+ MT_BUG_ON(mt, mas_allocated(&mas) != MAPLE_ALLOC_SLOTS * 3 + 2);
+ mas_destroy(&mas);
+
mtree_unlock(mt);
}

--
2.43.0