+ bootmem-remove-the-vmemmap-pages-from-kmemleak-in-free_bootmem_page.patch added to mm-hotfixes-unstable branch

[Andrew Morton <akpm@linux-foundation.org>]

The patch titled
     Subject: bootmem: remove the vmemmap pages from kmemleak in free_bootmem_page
has been added to the -mm mm-hotfixes-unstable branch.  Its filename is
     bootmem-remove-the-vmemmap-pages-from-kmemleak-in-free_bootmem_page.patch

This patch will shortly appear at
     https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/bootmem-remove-the-vmemmap-pages-from-kmemleak-in-free_bootmem_page.patch

This patch will later appear in the mm-hotfixes-unstable branch at
    git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm

Before you just go and hit "reply", please:
   a) Consider who else should be cc'ed
   b) Prefer to cc a suitable mailing list as well
   c) Ideally: find the original patch on the mailing list and do a
      reply-to-all to that, adding suitable additional cc's

*** Remember to use Documentation/process/submit-checklist.rst when testing your code ***

The -mm tree is included into linux-next via the mm-everything
branch at git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
and is updated there every 2-3 working days

------------------------------------------------------
From: Liu Shixin <liushixin2@huawei.com>
Subject: bootmem: remove the vmemmap pages from kmemleak in free_bootmem_page
Date: Tue, 4 Jul 2023 18:19:42 +0800

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.

Link: https://lkml.kernel.org/r/20230704101942.2819426-1-liushixin2@huawei.com
Fixes: f41f2ed43ca5 ("mm: hugetlb: free the vmemmap pages associated with each HugeTLB page")
Signed-off-by: Liu Shixin <liushixin2@huawei.com>
Acked-by: Muchun Song <songmuchun@bytedance.com>
Cc: Matthew Wilcox <willy@infradead.org>
Cc: Mike Kravetz <mike.kravetz@oracle.com>
Cc: Oscar Salvador <osalvador@suse.de>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

 include/linux/bootmem_info.h |    2 ++
 1 file changed, 2 insertions(+)

--- a/include/linux/bootmem_info.h~bootmem-remove-the-vmemmap-pages-from-kmemleak-in-free_bootmem_page
+++ a/include/linux/bootmem_info.h
@@ -3,6 +3,7 @@
 #define __LINUX_BOOTMEM_INFO_H
 
 #include <linux/mm.h>
+#include <linux/kmemleak.h>
 
 /*
  * Types for free bootmem stored in page->lru.next. These have to be in
@@ -59,6 +60,7 @@ static inline void get_page_bootmem(unsi
 
 static inline void free_bootmem_page(struct page *page)
 {
+	kmemleak_free_part(page_to_virt(page), PAGE_SIZE);
 	free_reserved_page(page);
 }
 #endif
_

Patches currently in -mm which might be from liushixin2@huawei.com are

bootmem-remove-the-vmemmap-pages-from-kmemleak-in-free_bootmem_page.patch