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Message-ID: <20240524091310.1430048-2-linmiaohe@huawei.com>
Date: Fri, 24 May 2024 17:12:58 +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 01/13] mm/memory-failure: simplify put_ref_page()
Remove unneeded page != NULL check. pfn_to_page() won't return NULL.
No functional change intended.
Signed-off-by: Miaohe Lin <linmiaohe@...wei.com>
---
mm/memory-failure.c | 6 +-----
1 file changed, 1 insertion(+), 5 deletions(-)
diff --git a/mm/memory-failure.c b/mm/memory-failure.c
index ac030061eda0..922c902a7229 100644
--- a/mm/memory-failure.c
+++ b/mm/memory-failure.c
@@ -2150,14 +2150,10 @@ static inline unsigned long folio_free_raw_hwp(struct folio *folio, bool flag)
/* Drop the extra refcount in case we come from madvise() */
static void put_ref_page(unsigned long pfn, int flags)
{
- struct page *page;
-
if (!(flags & MF_COUNT_INCREASED))
return;
- page = pfn_to_page(pfn);
- if (page)
- put_page(page);
+ put_page(pfn_to_page(pfn));
}
static int memory_failure_dev_pagemap(unsigned long pfn, int flags,
--
2.33.0
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