The patch titled Subject: nilfs2: convert nilfs_mdt_write_page() to use a folio has been added to the -mm mm-nonmm-unstable branch. Its filename is nilfs2-convert-nilfs_mdt_write_page-to-use-a-folio.patch This patch will shortly appear at https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/nilfs2-convert-nilfs_mdt_write_page-to-use-a-folio.patch This patch will later appear in the mm-nonmm-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: nilfs2: convert nilfs_mdt_write_page() to use a folio Date: Tue, 14 Nov 2023 17:44:23 +0900 Convert the incoming page to a folio. Replaces three calls to compound_head() with one. Link: https://lkml.kernel.org/r/20231114084436.2755-8-konishi.ryusuke@xxxxxxxxx Signed-off-by: Matthew Wilcox (Oracle) <willy@xxxxxxxxxxxxx> Signed-off-by: Ryusuke Konishi <konishi.ryusuke@xxxxxxxxx> Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> --- fs/nilfs2/mdt.c | 13 +++++++------ 1 file changed, 7 insertions(+), 6 deletions(-) --- a/fs/nilfs2/mdt.c~nilfs2-convert-nilfs_mdt_write_page-to-use-a-folio +++ a/fs/nilfs2/mdt.c @@ -399,7 +399,8 @@ int nilfs_mdt_fetch_dirty(struct inode * static int nilfs_mdt_write_page(struct page *page, struct writeback_control *wbc) { - struct inode *inode = page->mapping->host; + struct folio *folio = page_folio(page); + struct inode *inode = folio->mapping->host; struct super_block *sb; int err = 0; @@ -407,16 +408,16 @@ nilfs_mdt_write_page(struct page *page, /* * It means that filesystem was remounted in read-only * mode because of error or metadata corruption. But we - * have dirty pages that try to be flushed in background. - * So, here we simply discard this dirty page. + * have dirty folios that try to be flushed in background. + * So, here we simply discard this dirty folio. */ nilfs_clear_dirty_page(page, false); - unlock_page(page); + folio_unlock(folio); return -EROFS; } - redirty_page_for_writepage(wbc, page); - unlock_page(page); + folio_redirty_for_writepage(wbc, folio); + folio_unlock(folio); if (!inode) return 0; _ Patches currently in -mm which might be from willy@xxxxxxxxxxxxx are mm-add-folio_zero_tail-and-use-it-in-ext4.patch mm-add-folio_fill_tail-and-use-it-in-iomap.patch gfs2-convert-stuffed_readpage-to-stuffed_read_folio.patch mm-remove-test_set_page_writeback.patch afs-do-not-test-the-return-value-of-folio_start_writeback.patch smb-do-not-test-the-return-value-of-folio_start_writeback.patch mm-return-void-from-folio_start_writeback-and-related-functions.patch mm-make-mapping_evict_folio-the-preferred-way-to-evict-clean-folios.patch mm-convert-__do_fault-to-use-a-folio.patch mm-use-mapping_evict_folio-in-truncate_error_page.patch mm-convert-soft_offline_in_use_page-to-use-a-folio.patch mm-convert-isolate_page-to-mf_isolate_folio.patch mm-remove-invalidate_inode_page.patch 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 gfp-include-__gfp_nowarn-in-gfp_nowait.patch nilfs2-add-nilfs_end_folio_io.patch nilfs2-convert-nilfs_abort_logs-to-use-folios.patch nilfs2-convert-nilfs_segctor_complete_write-to-use-folios.patch nilfs2-convert-nilfs_forget_buffer-to-use-a-folio.patch nilfs2-convert-to-nilfs_folio_buffers_clean.patch nilfs2-convert-nilfs_writepage-to-use-a-folio.patch nilfs2-convert-nilfs_mdt_write_page-to-use-a-folio.patch nilfs2-convert-to-nilfs_clear_folio_dirty.patch nilfs2-convert-to-__nilfs_clear_folio_dirty.patch nilfs2-convert-nilfs_segctor_prepare_write-to-use-folios.patch nilfs2-convert-nilfs_page_mkwrite-to-use-a-folio.patch nilfs2-convert-nilfs_mdt_create_block-to-use-a-folio.patch nilfs2-convert-nilfs_mdt_submit_block-to-use-a-folio.patch nilfs2-convert-nilfs_gccache_submit_read_data-to-use-a-folio.patch nilfs2-convert-nilfs_btnode_create_block-to-use-a-folio.patch nilfs2-convert-nilfs_btnode_submit_block-to-use-a-folio.patch nilfs2-convert-nilfs_btnode_delete-to-use-a-folio.patch nilfs2-convert-nilfs_btnode_prepare_change_key-to-use-a-folio.patch nilfs2-convert-nilfs_btnode_commit_change_key-to-use-a-folio.patch nilfs2-convert-nilfs_btnode_abort_change_key-to-use-a-folio.patch