linux-kernel - Re: [External] [PATCH] bootmem: remove the vmemmap pages from kmemleak in free_bootmem

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Date:   Tue, 4 Jul 2023 19:49:18 +0800
From:   Muchun Song <songmuchun@...edance.com>
To:     Liu Shixin <liushixin2@...wei.com>
Cc:     Matthew Wilcox <willy@...radead.org>,
        Mike Kravetz <mike.kravetz@...cle.com>,
        Oscar Salvador <osalvador@...e.de>,
        Andrew Morton <akpm@...ux-foundation.org>,
        linux-kernel@...r.kernel.org, linux-mm@...ck.org,
        muchun.song@...ux.dev
Subject: Re: [External] [PATCH] bootmem: remove the vmemmap pages from
 kmemleak in free_bootmem_page

On Tue, Jul 4, 2023 at 5:23 PM Liu Shixin <liushixin2@...wei.com> wrote:
>
> commit dd0ff4d12dd2 ("bootmem: remove the vmemmap pages from kmemleak in
> put_page_bootmem") fix an overlaps existing problem of kmemleak. But the
> problem still existed when HAVE_BOOTMEM_INFO_NODE is disabled, because in
> this case, free_bootmem_page() will call free_reserved_page() directly.
>
> Fix the problem by adding kmemleak_free_part() in free_bootmem_page()
> when HAVE_BOOTMEM_INFO_NODE is disabled.
>
> Fixes: f41f2ed43ca5 ("mm: hugetlb: free the vmemmap pages associated with each HugeTLB page")
> Signed-off-by: Liu Shixin <liushixin2@...wei.com>

Acked-by: Muchun Song <songmuchun@...edance.com>

Thanks.