linux-kernel - [PATCH 2/2] maple_tree: Fix node allocation testing on 32 bit

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Date:   Wed, 12 Jul 2023 13:39:16 -0400
From:   "Liam R. Howlett" <Liam.Howlett@...cle.com>
To:     Andrew Morton <akpm@...ux-foundation.org>
Cc:     maple-tree@...ts.infradead.org, linux-mm@...ck.org,
        linux-kernel@...r.kernel.org,
        "Liam R. Howlett" <Liam.Howlett@...cle.com>
Subject: [PATCH 2/2] maple_tree: Fix node allocation testing on 32 bit

Internal node counting was altered and the 64 bit test was updated,
however the 32bit test was missed.

Restore the 32bit test to a functional state.

Link: https://lore.kernel.org/linux-mm/CAMuHMdV4T53fOw7VPoBgPR7fP6RYqf=CBhD_y_vOg53zZX_DnA@mail.gmail.com/
Fixes: 541e06b772c1 ("maple_tree: remove GFP_ZERO from kmem_cache_alloc() and kmem_cache_alloc_bulk()")
Signed-off-by: Liam R. Howlett <Liam.Howlett@...cle.com>
---
 tools/testing/radix-tree/maple.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/tools/testing/radix-tree/maple.c b/tools/testing/radix-tree/maple.c
index 312c0d9fcbae..9901ae821911 100644
--- a/tools/testing/radix-tree/maple.c
+++ b/tools/testing/radix-tree/maple.c
@@ -213,9 +213,9 @@ static noinline void __init check_new_node(struct maple_tree *mt)
 				e = i - 1;
 		} else {
 			if (i >= 4)
-				e = i - 4;
-			else if (i == 3)
-				e = i - 2;
+				e = i - 3;
+			else if (i >= 1)
+				e = i - 1;
 			else
 				e = 0;
 		}
-- 
2.39.2