The patch titled Subject: slub: use folio APIs in free_large_kmalloc() has been added to the -mm mm-unstable branch. Its filename is slub-use-folio-apis-in-free_large_kmalloc.patch This patch will shortly appear at https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/slub-use-folio-apis-in-free_large_kmalloc.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: "Matthew Wilcox (Oracle)" <willy@xxxxxxxxxxxxx> Subject: slub: use folio APIs in free_large_kmalloc() Date: Thu, 28 Dec 2023 08:57:45 +0000 Save a few calls to compound_head() by using the folio APIs directly. Link: https://lkml.kernel.org/r/20231228085748.1083901-4-willy@xxxxxxxxxxxxx Signed-off-by: Matthew Wilcox (Oracle) <willy@xxxxxxxxxxxxx> Cc: Hyeonggon Yoo <42.hyeyoo@xxxxxxxxx> Cc: Johannes Weiner <hannes@xxxxxxxxxxx> Cc: Vlastimil Babka <vbabka@xxxxxxx> Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> --- mm/slab_common.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) --- a/mm/slab_common.c~slub-use-folio-apis-in-free_large_kmalloc +++ a/mm/slab_common.c @@ -979,9 +979,9 @@ void free_large_kmalloc(struct folio *fo kasan_kfree_large(object); kmsan_kfree_large(object); - mod_lruvec_page_state(folio_page(folio, 0), NR_SLAB_UNRECLAIMABLE_B, + lruvec_stat_mod_folio(folio, NR_SLAB_UNRECLAIMABLE_B, -(PAGE_SIZE << order)); - __free_pages(folio_page(folio, 0), order); + folio_put(folio); } static void *__kmalloc_large_node(size_t size, gfp_t flags, int node); _ Patches currently in -mm which might be from willy@xxxxxxxxxxxxx are buffer-return-bool-from-grow_dev_folio.patch buffer-calculate-block-number-inside-folio_init_buffers.patch buffer-fix-grow_buffers-for-block-size-page_size.patch buffer-cast-block-to-loff_t-before-shifting-it.patch buffer-fix-various-functions-for-block-size-page_size.patch buffer-handle-large-folios-in-__block_write_begin_int.patch buffer-fix-more-functions-for-block-size-page_size.patch mm-convert-ksm_might_need_to_copy-to-work-on-folios.patch mm-convert-ksm_might_need_to_copy-to-work-on-folios-fix.patch mm-remove-pageanonexclusive-assertions-in-unuse_pte.patch mm-convert-unuse_pte-to-use-a-folio-throughout.patch mm-remove-some-calls-to-page_add_new_anon_rmap.patch mm-remove-stale-example-from-comment.patch mm-remove-references-to-page_add_new_anon_rmap-in-comments.patch mm-convert-migrate_vma_insert_page-to-use-a-folio.patch mm-convert-collapse_huge_page-to-use-a-folio.patch mm-remove-page_add_new_anon_rmap-and-lru_cache_add_inactive_or_unevictable.patch mm-return-the-folio-from-__read_swap_cache_async.patch mm-pass-a-folio-to-__swap_writepage.patch mm-pass-a-folio-to-swap_writepage_fs.patch mm-pass-a-folio-to-swap_writepage_bdev_sync.patch mm-pass-a-folio-to-swap_writepage_bdev_async.patch mm-pass-a-folio-to-swap_readpage_fs.patch mm-pass-a-folio-to-swap_readpage_bdev_sync.patch mm-pass-a-folio-to-swap_readpage_bdev_async.patch mm-convert-swap_page_sector-to-swap_folio_sector.patch mm-convert-swap_readpage-to-swap_read_folio.patch mm-remove-page_swap_info.patch mm-return-a-folio-from-read_swap_cache_async.patch mm-convert-swap_cluster_readahead-and-swap_vma_readahead-to-return-a-folio.patch mm-convert-swap_cluster_readahead-and-swap_vma_readahead-to-return-a-folio-fix.patch fs-remove-clean_page_buffers.patch fs-convert-clean_buffers-to-take-a-folio.patch fs-reduce-stack-usage-in-__mpage_writepage.patch fs-reduce-stack-usage-in-do_mpage_readpage.patch adfs-remove-writepage-implementation.patch bfs-remove-writepage-implementation.patch hfs-really-remove-hfs_writepage.patch hfsplus-really-remove-hfsplus_writepage.patch minix-remove-writepage-implementation.patch ocfs2-remove-writepage-implementation.patch sysv-remove-writepage-implementation.patch ufs-remove-writepage-implementation.patch fs-convert-block_write_full_page-to-block_write_full_folio.patch fs-remove-the-bh_end_io-argument-from-__block_write_full_folio.patch mm-remove-inc-dec-lruvec-page-state-functions.patch slub-use-alloc_pages_node-in-alloc_slab_page.patch slub-use-folio-apis-in-free_large_kmalloc.patch slub-use-a-folio-in-__kmalloc_large_node.patch mm-khugepaged-use-a-folio-more-in-collapse_file.patch mm-memcontrol-remove-__mod_lruvec_page_state.patch