The patch titled
Subject: radix tree test suite: fix allocation calculation in kmem_cache_alloc_bulk()
has been added to the -mm mm-unstable branch. Its filename is
radix-tree-test-suite-fix-allocation-calculation-in-kmem_cache_alloc_bulk.patch
This patch will shortly appear at
https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/radix-tree-test-suite-fix-allocation-calculation-in-kmem_cache_alloc_bulk.patch
This patch will later appear in the mm-unstable branch at
git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
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------------------------------------------------------
From: "Liam R. Howlett" <Liam.Howlett@xxxxxxxxxx>
Subject: radix tree test suite: fix allocation calculation in kmem_cache_alloc_bulk()
Date: Fri, 29 Sep 2023 16:13:59 -0400
The bulk allocation is iterating through an array and storing enough
memory for the entire bulk allocation instead of a single array entry.
Only allocate an array element of the size set in the kmem_cache.
Link: https://lkml.kernel.org/r/20230929201359.2857583-1-Liam.Howlett@xxxxxxxxxx
Fixes: cc86e0c2f306 ("radix tree test suite: add support for slab bulk APIs")
Signed-off-by: Liam R. Howlett <Liam.Howlett@xxxxxxxxxx>
Reported-by: Christophe JAILLET <christophe.jaillet@xxxxxxxxxx>
Cc: Matthew Wilcox (Oracle) <willy@xxxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
tools/testing/radix-tree/linux.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
--- a/tools/testing/radix-tree/linux.c~radix-tree-test-suite-fix-allocation-calculation-in-kmem_cache_alloc_bulk
+++ a/tools/testing/radix-tree/linux.c
@@ -165,9 +165,9 @@ int kmem_cache_alloc_bulk(struct kmem_ca
for (i = 0; i < size; i++) {
if (cachep->align) {
posix_memalign(&p[i], cachep->align,
- cachep->size * size);
+ cachep->size);
} else {
- p[i] = malloc(cachep->size * size);
+ p[i] = malloc(cachep->size);
}
if (cachep->ctor)
cachep->ctor(p[i]);
_
Patches currently in -mm which might be from Liam.Howlett@xxxxxxxxxx are
maple_tree-add-mas_active-to-detect-in-tree-walks.patch
maple_tree-add-mas_underflow-and-mas_overflow-states.patch
mm-mempolicy-fix-set_mempolicy_home_node-previous-vma-pointer.patch
mmap-fix-vma_iterator-in-error-path-of-vma_merge.patch
mmap-fix-error-paths-with-dup_anon_vma.patch
mmap-add-clarifying-comment-to-vma_merge-code.patch
radix-tree-test-suite-fix-allocation-calculation-in-kmem_cache_alloc_bulk.patch
