Commit 92644f58 authored Jan 13, 2023 by Vishal Moola (Oracle) Committed by Andrew Morton Feb 02, 2023

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>

parent 62a9bbf2

mm/khugepaged.c

+10 −5

Original line number	Diff line number	Diff line
		@@ -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,