mm/kmemleak: fix percpu memory leak detection failure

kmemleak_alloc_percpu gives an incorrect min_count parameter, causing percpu memory to be considered a gray object. Link: https://lkml.kernel.org/r/20241227092311.3572500-1-guoweikang.kernel@gmail.com Fixes: 8c86859 ("mm/kmemleak: use IS_ERR_PCPU() for pointer in the percpu address space") Signed-off-by: Guo Weikang <guoweikang.kernel@gmail.com> Acked-by: Uros Bizjak <ubizjak@gmail.com> Acked-by: Catalin Marinas <catalin.marinas@arm.com> Cc: Guo Weikang <guoweikang.kernel@gmail.com> Cc: <stable@vger.kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
bergwolf · Jan 13, 2025 · 76d5d4c · 76d5d4c
1 parent cd6313b
commit 76d5d4c
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/mm/kmemleak.c b/mm/kmemleak.c
@@ -1093,7 +1093,7 @@ void __ref kmemleak_alloc_percpu(const void __percpu *ptr, size_t size,
 	pr_debug("%s(0x%px, %zu)\n", __func__, ptr, size);
 
 	if (kmemleak_enabled && ptr && !IS_ERR_PCPU(ptr))
-		create_object_percpu((__force unsigned long)ptr, size, 0, gfp);
+		create_object_percpu((__force unsigned long)ptr, size, 1, gfp);
 }
 EXPORT_SYMBOL_GPL(kmemleak_alloc_percpu);