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From: Liu Shixin <liushixin2@huawei.com>
To: Catalin Marinas <catalin.marinas@arm.com>,
	Patrick Wang <patrick.wang.shcn@gmail.com>,
	Andrew Morton <akpm@linux-foundation.org>,
	Kefeng Wang <wangkefeng.wang@huawei.com>
Cc: <linux-mm@kvack.org>, <linux-kernel@vger.kernel.org>,
	Liu Shixin <liushixin2@huawei.com>
Subject: [PATCH v3 2/7] bootmem: use kmemleak_free_part_phys in free_bootmem_page
Date: Wed, 18 Oct 2023 18:29:47 +0800	[thread overview]
Message-ID: <20231018102952.3339837-3-liushixin2@huawei.com> (raw)
In-Reply-To: <20231018102952.3339837-1-liushixin2@huawei.com>

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@huawei.com>
Acked-by: Catalin Marinas <catalin.marinas@arm.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



  parent reply	other threads:[~2023-10-18  9:30 UTC|newest]

Thread overview: 15+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-10-18 10:29 [PATCH v3 0/7] Some bugfix about kmemleak Liu Shixin
2023-10-18 10:29 ` [PATCH v3 1/7] bootmem: use kmemleak_free_part_phys in put_page_bootmem Liu Shixin
2023-10-18 10:29 ` Liu Shixin [this message]
2023-10-18 10:29 ` [PATCH v3 3/7] mm/kmemleak: fix print format of pointer in pr_debug() Liu Shixin
2023-10-18 10:29 ` [PATCH v3 4/7] mm: kmemleak: split __create_object into two functions Liu Shixin
2023-10-18 15:42   ` Catalin Marinas
2023-10-18 10:29 ` [PATCH v3 5/7] mm: kmemleak: use mem_pool_free() to free object Liu Shixin
2023-10-18 15:48   ` Catalin Marinas
2023-10-18 15:57     ` Catalin Marinas
2023-10-18 16:22       ` Andrew Morton
2023-10-18 16:34         ` Catalin Marinas
2023-10-18 10:29 ` [PATCH v3 6/7] mm: kmemleak: add __find_and_remove_object() Liu Shixin
2023-10-18 15:51   ` Catalin Marinas
2023-10-18 10:29 ` [PATCH v3 7/7] mm/kmemleak: fix partially freeing unknown object warning Liu Shixin
2023-10-18 16:39   ` Catalin Marinas

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