mm-memory-failure-update-ttu-flag-inside-unmap_poisoned_folio-v3

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@redhat.com>
Signed-off-by: Ma Wupeng <mawupeng1@huawei.com>
Acked-by: David Hildenbrand <david@redhat.com>
Acked-by: Miaohe Lin <linmiaohe@huawei.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>

diff --git a/mm/memory-failure.c b/mm/memory-failure.c
index ad798ab2645e8b4a57ea16340d03405069d1883d..327e02fdc029da28582c31b213c05a703b9d4be2 100644 (file)
--- a/mm/memory-failure.c
+++ b/mm/memory-failure.c
@@ -1585,8 +1585,6 @@ int unmap_poisoned_folio(struct folio *folio, unsigned long pfn, bool must_kill)
        }
 
        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