Since commit 130d4df57390 ("mm/sl[au]b: rearrange struct slab fields to
allow larger rcu_head"), folio->_mapcount is not overloaded with SLAB.
Update corresponding comment.
Signed-off-by: Miaohe Lin <linmiaohe@xxxxxxxxxx>
Reviewed-by: David Hildenbrand <david@xxxxxxxxxx>
---
mm/memory-failure.c | 4 ----
1 file changed, 4 deletions(-)
diff --git a/mm/memory-failure.c b/mm/memory-failure.c
index 81a544df8381..51df2c2e0cc2 100644
--- a/mm/memory-failure.c
+++ b/mm/memory-failure.c
@@ -2584,10 +2584,6 @@ int unpoison_memory(unsigned long pfn)
folio_test_reserved(folio) || folio_test_offline(folio))
goto unlock_mutex;
- /*
- * Note that folio->_mapcount is overloaded in SLAB, so the simple test
- * in folio_mapped() has to be done after folio_test_slab() is checked.
- */
if (folio_mapped(folio)) {
unpoison_pr_info("Unpoison: Someone maps the hwpoison page %#lx\n",
pfn, &unpoison_rs);
--
2.33.0
