[PATCH v2 04/13] mm/memory-failure: save some page_folio() calls

From: Miaohe Lin
Date: Thu Jun 06 2024 - 02:36:55 EST


Use local variable folio directly to save a page_folio() call. Also
use folio_mapped() to save more page_folio() calls. No functional
change intended.

Signed-off-by: Miaohe Lin <linmiaohe@xxxxxxxxxx>
Reviewed-by: David Hildenbrand <david@xxxxxxxxxx>
---
mm/memory-failure.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/mm/memory-failure.c b/mm/memory-failure.c
index 958b17a4b0f5..470c570d779c 100644
--- a/mm/memory-failure.c
+++ b/mm/memory-failure.c
@@ -1575,7 +1575,7 @@ static bool hwpoison_user_mappings(struct folio *folio, struct page *p,
* This check implies we don't kill processes if their pages
* are in the swap cache early. Those are always late kills.
*/
- if (!page_mapped(p))
+ if (!folio_mapped(folio))
return true;

if (folio_test_swapcache(folio)) {
@@ -1626,10 +1626,10 @@ static bool hwpoison_user_mappings(struct folio *folio, struct page *p,
try_to_unmap(folio, ttu);
}

- unmap_success = !page_mapped(p);
+ unmap_success = !folio_mapped(folio);
if (!unmap_success)
pr_err("%#lx: failed to unmap page (folio mapcount=%d)\n",
- pfn, folio_mapcount(page_folio(p)));
+ pfn, folio_mapcount(folio));

/*
* try_to_unmap() might put mlocked page in lru cache, so call
--
2.33.0