linux-kernel - [PATCH v2 2/4] bootmem: use kmemleak_free_part_phys in free_bootmem

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Date:   Sun, 8 Oct 2023 10:33:15 +0800
From:   Liu Shixin <liushixin2@...wei.com>
To:     Catalin Marinas <catalin.marinas@....com>,
        Patrick Wang <patrick.wang.shcn@...il.com>,
        Andrew Morton <akpm@...ux-foundation.org>
CC:     <linux-mm@...ck.org>, <linux-kernel@...r.kernel.org>,
        Liu Shixin <liushixin2@...wei.com>
Subject: [PATCH v2 2/4] bootmem: use kmemleak_free_part_phys in free_bootmem_page

Since kmemleak_alloc_phys() rather than kmemleak_alloc() was called from
memblock_alloc_range_nid(), kmemleak_free_part_phys() should be used to
delete kmemleak object in free_bootmem_page(). In debug mode, there are
following warning:

 kmemleak: Partially freeing unknown object at 0xffff97345aff7000 (size 4096)

Fixes: 028725e73375 ("bootmem: remove the vmemmap pages from kmemleak in free_bootmem_page")
Signed-off-by: Liu Shixin <liushixin2@...wei.com>
Acked-by: Catalin Marinas <catalin.marinas@....com>
---
 include/linux/bootmem_info.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/include/linux/bootmem_info.h b/include/linux/bootmem_info.h
index e1a3c9c9754c..cffa38a73618 100644
--- a/include/linux/bootmem_info.h
+++ b/include/linux/bootmem_info.h
@@ -60,7 +60,7 @@ static inline void get_page_bootmem(unsigned long info, struct page *page,
 
 static inline void free_bootmem_page(struct page *page)
 {
-	kmemleak_free_part(page_to_virt(page), PAGE_SIZE);
+	kmemleak_free_part_phys(PFN_PHYS(page_to_pfn(page)), PAGE_SIZE);
 	free_reserved_page(page);
 }
 #endif
-- 
2.25.1