The quilt patch titled
Subject: mm/huge_memory: fix comment of page_deferred_list
has been removed from the -mm tree. Its filename was
mm-huge_memory-fix-comment-of-page_deferred_list.patch
This patch was dropped because it was merged into the mm-stable branch
of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
------------------------------------------------------
From: Miaohe Lin <linmiaohe@xxxxxxxxxx>
Subject: mm/huge_memory: fix comment of page_deferred_list
Date: Mon, 4 Jul 2022 21:21:58 +0800
The current comment is confusing because if global or memcg deferred list
in the second tail page is occupied by compound_head, why we still use
page[2].deferred_list here? I think it wants to say that Global or memcg
deferred list in the first tail page is occupied by compound_mapcount and
compound_pincount so we use the second tail page's deferred_list instead.
Link: https://lkml.kernel.org/r/20220704132201.14611-14-linmiaohe@xxxxxxxxxx
Signed-off-by: Miaohe Lin <linmiaohe@xxxxxxxxxx>
Reviewed-by: Muchun Song <songmuchun@xxxxxxxxxxxxx>
Cc: Matthew Wilcox <willy@xxxxxxxxxxxxx>
Cc: Yang Shi <shy828301@xxxxxxxxx>
Cc: Zach O'Keefe <zokeefe@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
include/linux/huge_mm.h | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
--- a/include/linux/huge_mm.h~mm-huge_memory-fix-comment-of-page_deferred_list
+++ a/include/linux/huge_mm.h
@@ -294,8 +294,8 @@ static inline bool thp_migration_support
static inline struct list_head *page_deferred_list(struct page *page)
{
/*
- * Global or memcg deferred list in the second tail pages is
- * occupied by compound_head.
+ * See organization of tail pages of compound page in
+ * "struct page" definition.
*/
return &page[2].deferred_list;
}
_
Patches currently in -mm which might be from linmiaohe@xxxxxxxxxx are
mm-hugetlb-avoid-corrupting-page-mapping-in-hugetlb_mcopy_atomic_pte.patch
mm-page_alloc-minor-clean-up-for-memmap_init_compound.patch
mm-mmapc-fix-missing-call-to-vm_unacct_memory-in-mmap_region.patch
filemap-minor-cleanup-for-filemap_write_and_wait_range.patch
mm-remove-obsolete-comment-in-do_fault_around.patch
