[PATCH 01/13] mm/memory-failure: simplify put_ref_page()

From: Miaohe Lin
Date: Fri May 24 2024 - 05:17:16 EST


Remove unneeded page != NULL check. pfn_to_page() won't return NULL.
No functional change intended.

Signed-off-by: Miaohe Lin <linmiaohe@xxxxxxxxxx>
---
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