mm/khugepaged: introduce release_pte_folio() to replace release_pte_page()
release_pte_page() is converted to be a wrapper for release_pte_folio() to
help facilitate the khugepaged conversion to folios.
This replaces 3 calls to compound_head() with 1, and saves 85 bytes of
kernel text.
Link: https://lkml.kernel.org/r/20230114001556.43795-1-vishal.moola@gmail.com
Signed-off-by: Vishal Moola (Oracle) <vishal.moola@gmail.com>
Cc: Matthew Wilcox <willy@infradead.org>
Cc: Mike Kravetz <mike.kravetz@oracle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
diff --git a/mm/khugepaged.c b/mm/khugepaged.c
index 57164c1..d7b993e 100644
--- a/mm/khugepaged.c
+++ b/mm/khugepaged.c
@@ -490,13 +490,18 @@ void __khugepaged_exit(struct mm_struct *mm)
}
}
+static void release_pte_folio(struct folio *folio)
+{
+ node_stat_mod_folio(folio,
+ NR_ISOLATED_ANON + folio_is_file_lru(folio),
+ -folio_nr_pages(folio));
+ folio_unlock(folio);
+ folio_putback_lru(folio);
+}
+
static void release_pte_page(struct page *page)
{
- mod_node_page_state(page_pgdat(page),
- NR_ISOLATED_ANON + page_is_file_lru(page),
- -compound_nr(page));
- unlock_page(page);
- putback_lru_page(page);
+ release_pte_folio(page_folio(page));
}
static void release_pte_pages(pte_t *pte, pte_t *_pte,
