The patch titled Subject: mm: huge_memory: use more folio api in __split_huge_page_tail() has been added to the -mm mm-unstable branch. Its filename is mm-huge_memory-use-more-folio-api-in-__split_huge_page_tail.patch This patch will shortly appear at https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/mm-huge_memory-use-more-folio-api-in-__split_huge_page_tail.patch This patch will later appear in the mm-unstable branch at git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm Before you just go and hit "reply", please: a) Consider who else should be cc'ed b) Prefer to cc a suitable mailing list as well c) Ideally: find the original patch on the mailing list and do a reply-to-all to that, adding suitable additional cc's *** Remember to use Documentation/process/submit-checklist.rst when testing your code *** The -mm tree is included into linux-next via the mm-everything branch at git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm and is updated there every 2-3 working days ------------------------------------------------------ From: Kefeng Wang <wangkefeng.wang@xxxxxxxxxx> Subject: mm: huge_memory: use more folio api in __split_huge_page_tail() Date: Fri, 10 Nov 2023 11:33:21 +0800 Use more folio APIs to save six compound_head() calls in __split_huge_page_tail(). Link: https://lkml.kernel.org/r/20231110033324.2455523-5-wangkefeng.wang@xxxxxxxxxx Signed-off-by: Kefeng Wang <wangkefeng.wang@xxxxxxxxxx> Reviewed-by: Matthew Wilcox (Oracle) <willy@xxxxxxxxxxxxx> Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> --- mm/huge_memory.c | 12 ++++++------ 1 file changed, 6 insertions(+), 6 deletions(-) --- a/mm/huge_memory.c~mm-huge_memory-use-more-folio-api-in-__split_huge_page_tail +++ a/mm/huge_memory.c @@ -2631,13 +2631,13 @@ static void __split_huge_page_tail(struc clear_compound_head(page_tail); /* Finally unfreeze refcount. Additional reference from page cache. */ - page_ref_unfreeze(page_tail, 1 + (!PageAnon(head) || - PageSwapCache(head))); + page_ref_unfreeze(page_tail, 1 + (!folio_test_anon(folio) || + folio_test_swapcache(folio))); - if (page_is_young(head)) - set_page_young(page_tail); - if (page_is_idle(head)) - set_page_idle(page_tail); + if (folio_test_young(folio)) + folio_set_young(new_folio); + if (folio_test_idle(folio)) + folio_set_idle(new_folio); folio_xchg_last_cpupid(new_folio, folio_last_cpupid(folio)); _ Patches currently in -mm which might be from wangkefeng.wang@xxxxxxxxxx are mm-ksm-use-more-folio-api-in-ksm_might_need_to_copy.patch mm-memory-use-a-folio-in-validate_page_before_insert.patch mm-memory-rename-page_copy_prealloc-to-folio_prealloc.patch mm-memory-use-a-folio-in-do_cow_fault.patch mm-memory-use-folio_prealloc-in-wp_page_copy.patch mm-huge_memory-use-more-folio-api-in-__split_huge_page_tail.patch