The patch titled
Subject: mm/khugepaged: introduce release_pte_folio() to replace release_pte_page()
has been added to the -mm mm-unstable branch. Its filename is
mm-khugepaged-introduce-release_pte_folio-to-replace-release_pte_page.patch
This patch will shortly appear at
https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/mm-khugepaged-introduce-release_pte_folio-to-replace-release_pte_page.patch
This patch will later appear in the mm-unstable branch at
git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
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------------------------------------------------------
From: "Vishal Moola (Oracle)" <vishal.moola@xxxxxxxxx>
Subject: mm/khugepaged: introduce release_pte_folio() to replace release_pte_page()
Date: Fri, 13 Jan 2023 16:15:55 -0800
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@xxxxxxxxx
Signed-off-by: Vishal Moola (Oracle) <vishal.moola@xxxxxxxxx>
Cc: Matthew Wilcox <willy@xxxxxxxxxxxxx>,
Cc: Mike Kravetz <mike.kravetz@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
--- a/mm/khugepaged.c~mm-khugepaged-introduce-release_pte_folio-to-replace-release_pte_page
+++ a/mm/khugepaged.c
@@ -492,13 +492,18 @@ void __khugepaged_exit(struct mm_struct
}
}
+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,
_
Patches currently in -mm which might be from vishal.moola@xxxxxxxxx are
mm-memory-add-vm_normal_folio.patch
madvise-convert-madvise_cold_or_pageout_pte_range-to-use-folios.patch
mm-damon-convert-damon_pa_mark_accessed_or_deactivate-to-use-folios.patch
mm-swap-convert-deactivate_page-to-folio_deactivate.patch
ext4-convert-mext_page_double_lock-to-mext_folio_double_lock.patch
mm-khugepaged-introduce-release_pte_folio-to-replace-release_pte_page.patch
mm-khugepaged-convert-release_pte_pages-to-use-folios.patch
