From 92644f583d5124b60bc20a3dd21b0bc9142f020c Mon Sep 17 00:00:00 2001 From: "Vishal Moola (Oracle)" Date: Fri, 13 Jan 2023 16:15:55 -0800 Subject: [PATCH] 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) Cc: Matthew Wilcox Cc: Mike Kravetz Signed-off-by: Andrew Morton --- mm/khugepaged.c | 15 ++++++++++----- 1 file changed, 10 insertions(+), 5 deletions(-) diff --git a/mm/khugepaged.c b/mm/khugepaged.c index 57164c15e076..d7b993e53711 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, -- 2.11.0