linux-kernel - [PATCH] radix tree test suite: Fix a memory initialization issue

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Message-Id: <b1f490b450b14dd754a45f91bb1abd622ce8d4f7.1695935486.git.christophe.jaillet@wanadoo.fr>
Date:   Thu, 28 Sep 2023 23:11:45 +0200
From:   Christophe JAILLET <christophe.jaillet@...adoo.fr>
To:     Matthew Wilcox <willy@...radead.org>,
        Andrew Morton <akpm@...ux-foundation.org>,
        "Liam R. Howlett" <Liam.Howlett@...cle.com>
Cc:     linux-kernel@...r.kernel.org, kernel-janitors@...r.kernel.org,
        Christophe JAILLET <christophe.jaillet@...adoo.fr>,
        linux-fsdevel@...r.kernel.org
Subject: [PATCH] radix tree test suite: Fix a memory initialization issue

If __GFP_ZERO is used, the whole allocated memory should be cleared, not
the first part of it only.

Fixes: cc86e0c2f306 ("radix tree test suite: add support for slab bulk APIs")
Signed-off-by: Christophe JAILLET <christophe.jaillet@...adoo.fr>
---
 tools/testing/radix-tree/linux.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/testing/radix-tree/linux.c b/tools/testing/radix-tree/linux.c
index d587a558997f..8ab162c48629 100644
--- a/tools/testing/radix-tree/linux.c
+++ b/tools/testing/radix-tree/linux.c
@@ -172,7 +172,7 @@ int kmem_cache_alloc_bulk(struct kmem_cache *cachep, gfp_t gfp, size_t size,
 			if (cachep->ctor)
 				cachep->ctor(p[i]);
 			else if (gfp & __GFP_ZERO)
-				memset(p[i], 0, cachep->size);
+				memset(p[i], 0, cachep->size * size);
 		}
 	}
 
-- 
2.34.1