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Message-ID: <20240612071835.157004-10-linmiaohe@huawei.com>
Date: Wed, 12 Jun 2024 15:18:31 +0800
From: Miaohe Lin <linmiaohe@...wei.com>
To: <akpm@...ux-foundation.org>, <tony.luck@...el.com>, <bp@...en8.de>
CC: <nao.horiguchi@...il.com>, <linmiaohe@...wei.com>, <linux-mm@...ck.org>,
<linux-kernel@...r.kernel.org>, <linux-edac@...r.kernel.org>
Subject: [PATCH v3 09/13] mm/memory-failure: remove obsolete comment in unpoison_memory()
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@...wei.com>
Reviewed-by: David Hildenbrand <david@...hat.com>
---
mm/memory-failure.c | 4 ----
1 file changed, 4 deletions(-)
diff --git a/mm/memory-failure.c b/mm/memory-failure.c
index bd3ab367ba2f..bb8e79381c1f 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
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