The patch titled
Subject: nilfs2: convert nilfs_prepare_chunk() and nilfs_commit_chunk() to folios
has been added to the -mm mm-nonmm-unstable branch. Its filename is
nilfs2-convert-nilfs_prepare_chunk-and-nilfs_commit_chunk-to-folios.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_prepare_chunk-and-nilfs_commit_chunk-to-folios.patch
This patch will later appear in the mm-nonmm-unstable branch at
git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
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------------------------------------------------------
From: "Matthew Wilcox (Oracle)" <willy@xxxxxxxxxxxxx>
Subject: nilfs2: convert nilfs_prepare_chunk() and nilfs_commit_chunk() to folios
Date: Mon, 27 Nov 2023 23:30:35 +0900
All callers now have a folio, so convert these two functions.
Saves one call to compound_head() in unlock_page().
[konishi.ryusuke: resolved conflicts in nilfs_{set_link,delete_entry}]
Link: https://lkml.kernel.org/r/20231127143036.2425-17-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/dir.c | 39 +++++++++++++++++++--------------------
1 file changed, 19 insertions(+), 20 deletions(-)
--- a/fs/nilfs2/dir.c~nilfs2-convert-nilfs_prepare_chunk-and-nilfs_commit_chunk-to-folios
+++ a/fs/nilfs2/dir.c
@@ -78,33 +78,32 @@ static unsigned int nilfs_last_byte(stru
return last_byte;
}
-static int nilfs_prepare_chunk(struct page *page, unsigned int from,
+static int nilfs_prepare_chunk(struct folio *folio, unsigned int from,
unsigned int to)
{
- loff_t pos = page_offset(page) + from;
+ loff_t pos = folio_pos(folio) + from;
- return __block_write_begin(page, pos, to - from, nilfs_get_block);
+ return __block_write_begin(&folio->page, pos, to - from, nilfs_get_block);
}
-static void nilfs_commit_chunk(struct page *page,
- struct address_space *mapping,
- unsigned int from, unsigned int to)
+static void nilfs_commit_chunk(struct folio *folio,
+ struct address_space *mapping, size_t from, size_t to)
{
struct inode *dir = mapping->host;
- loff_t pos = page_offset(page) + from;
- unsigned int len = to - from;
- unsigned int nr_dirty, copied;
+ loff_t pos = folio_pos(folio) + from;
+ size_t copied, len = to - from;
+ unsigned int nr_dirty;
int err;
- nr_dirty = nilfs_page_count_clean_buffers(page, from, to);
- copied = block_write_end(NULL, mapping, pos, len, len, page, NULL);
+ nr_dirty = nilfs_page_count_clean_buffers(&folio->page, from, to);
+ copied = block_write_end(NULL, mapping, pos, len, len, &folio->page, NULL);
if (pos + copied > dir->i_size)
i_size_write(dir, pos + copied);
if (IS_DIRSYNC(dir))
nilfs_set_transaction_flag(NILFS_TI_SYNC);
err = nilfs_set_file_dirty(dir, nr_dirty);
WARN_ON(err); /* do not happen */
- unlock_page(page);
+ folio_unlock(folio);
}
static bool nilfs_check_folio(struct folio *folio, char *kaddr)
@@ -409,11 +408,11 @@ void nilfs_set_link(struct inode *dir, s
int err;
folio_lock(folio);
- err = nilfs_prepare_chunk(&folio->page, from, to);
+ err = nilfs_prepare_chunk(folio, from, to);
BUG_ON(err);
de->inode = cpu_to_le64(inode->i_ino);
nilfs_set_de_type(de, inode);
- nilfs_commit_chunk(&folio->page, mapping, from, to);
+ nilfs_commit_chunk(folio, mapping, from, to);
inode_set_mtime_to_ts(dir, inode_set_ctime_current(dir));
}
@@ -485,7 +484,7 @@ int nilfs_add_link(struct dentry *dentry
got_it:
from = offset_in_folio(folio, de);
to = from + rec_len;
- err = nilfs_prepare_chunk(&folio->page, from, to);
+ err = nilfs_prepare_chunk(folio, from, to);
if (err)
goto out_unlock;
if (de->inode) {
@@ -500,7 +499,7 @@ got_it:
memcpy(de->name, name, namelen);
de->inode = cpu_to_le64(inode->i_ino);
nilfs_set_de_type(de, inode);
- nilfs_commit_chunk(&folio->page, folio->mapping, from, to);
+ nilfs_commit_chunk(folio, folio->mapping, from, to);
inode_set_mtime_to_ts(dir, inode_set_ctime_current(dir));
nilfs_mark_inode_dirty(dir);
/* OFFSET_CACHE */
@@ -542,12 +541,12 @@ int nilfs_delete_entry(struct nilfs_dir_
if (pde)
from = (char *)pde - kaddr;
folio_lock(folio);
- err = nilfs_prepare_chunk(&folio->page, from, to);
+ err = nilfs_prepare_chunk(folio, from, to);
BUG_ON(err);
if (pde)
pde->rec_len = nilfs_rec_len_to_disk(to - from);
dir->inode = 0;
- nilfs_commit_chunk(&folio->page, mapping, from, to);
+ nilfs_commit_chunk(folio, mapping, from, to);
inode_set_mtime_to_ts(inode, inode_set_ctime_current(inode));
out:
return err;
@@ -568,7 +567,7 @@ int nilfs_make_empty(struct inode *inode
if (IS_ERR(folio))
return PTR_ERR(folio);
- err = nilfs_prepare_chunk(&folio->page, 0, chunk_size);
+ err = nilfs_prepare_chunk(folio, 0, chunk_size);
if (unlikely(err)) {
folio_unlock(folio);
goto fail;
@@ -589,7 +588,7 @@ int nilfs_make_empty(struct inode *inode
memcpy(de->name, "..\0", 4);
nilfs_set_de_type(de, inode);
kunmap_local(kaddr);
- nilfs_commit_chunk(&folio->page, mapping, 0, chunk_size);
+ nilfs_commit_chunk(folio, mapping, 0, chunk_size);
fail:
folio_put(folio);
return err;
_
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
memory-failure-use-a-folio-in-me_pagecache_clean.patch
memory-failure-use-a-folio-in-me_pagecache_dirty.patch
memory-failure-convert-delete_from_lru_cache-to-take-a-folio.patch
memory-failure-use-a-folio-in-me_huge_page.patch
memory-failure-convert-truncate_error_page-to-truncate_error_folio.patch
fs-convert-error_remove_page-to-error_remove_folio.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
nilfs2-remove-page_address-from-nilfs_set_link.patch
nilfs2-remove-page_address-from-nilfs_add_link.patch
nilfs2-remove-page_address-from-nilfs_delete_entry.patch
nilfs2-return-the-mapped-address-from-nilfs_get_page.patch
nilfs2-pass-the-mapped-address-to-nilfs_check_page.patch
nilfs2-switch-to-kmap_local-for-directory-handling.patch
nilfs2-add-nilfs_get_folio.patch
nilfs2-convert-nilfs_readdir-to-use-a-folio.patch
nilfs2-convert-nilfs_find_entry-to-use-a-folio.patch
nilfs2-convert-nilfs_rename-to-use-folios.patch
nilfs2-convert-nilfs_add_link-to-use-a-folio.patch
nilfs2-convert-nilfs_empty_dir-to-use-a-folio.patch
nilfs2-convert-nilfs_make_empty-to-use-a-folio.patch
nilfs2-convert-nilfs_prepare_chunk-and-nilfs_commit_chunk-to-folios.patch
nilfs2-convert-nilfs_page_bug-to-nilfs_folio_bug.patch
