linux-kernel - Re: [PATCH v3] mm: memory-failure: update ttu flag inside unmap_poisoned

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Message-Id: <20250219154156.2fa7e0f63838e80f8456f1d5@linux-foundation.org>
Date: Wed, 19 Feb 2025 15:41:56 -0800
From: Andrew Morton <akpm@...ux-foundation.org>
To: Wupeng Ma <mawupeng1@...wei.com>
Cc: <david@...hat.com>, <osalvador@...e.de>, <nao.horiguchi@...il.com>,
 <linmiaohe@...wei.com>, <mhocko@...e.com>, <linux-mm@...ck.org>,
 <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v3] mm: memory-failure: update ttu flag inside
 unmap_poisoned_folio

On Wed, 19 Feb 2025 14:06:52 +0800 Wupeng Ma <mawupeng1@...wei.com> wrote:
>
> ...
>

Thanks, I queued the below fix, so people can see what changed from v2:

From: Ma Wupeng <mawupeng1@...wei.com>
Subject: mm-memory-failure-update-ttu-flag-inside-unmap_poisoned_folio-v3
Date: Wed, 19 Feb 2025 14:06:52 +0800

unmap_poisoned_folio(): remove shadowed local `mapping', per Miaohe

Link: https://lkml.kernel.org/r/20250219060653.3849083-1-mawupeng1@huawei.com
Fixes: 6da6b1d4a7df ("mm/hwpoison: convert TTU_IGNORE_HWPOISON to TTU_HWPOISON")
Suggested-by: David Hildenbrand <david@...hat.com>
Signed-off-by: Ma Wupeng <mawupeng1@...wei.com>
Acked-by: David Hildenbrand <david@...hat.com>
Acked-by: Miaohe Lin <linmiaohe@...wei.com>
Signed-off-by: Andrew Morton <akpm@...ux-foundation.org>
---

 mm/memory-failure.c |    2 --
 1 file changed, 2 deletions(-)

--- a/mm/memory-failure.c~mm-memory-failure-update-ttu-flag-inside-unmap_poisoned_folio-v3
+++ a/mm/memory-failure.c
@@ -1585,8 +1585,6 @@ int unmap_poisoned_folio(struct folio *f
 	}
 
 	if (folio_test_hugetlb(folio) && !folio_test_anon(folio)) {
-		struct address_space *mapping;
-
 		/*
 		 * For hugetlb folios in shared mappings, try_to_unmap
 		 * could potentially call huge_pmd_unshare.  Because of
_