The patch titled
Subject: nilfs2: convert nilfs_recovery_copy_block() to take a folio
has been added to the -mm mm-nonmm-unstable branch. Its filename is
nilfs2-convert-nilfs_recovery_copy_block-to-take-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_recovery_copy_block-to-take-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
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------------------------------------------------------
From: "Matthew Wilcox (Oracle)" <willy@xxxxxxxxxxxxx>
Subject: nilfs2: convert nilfs_recovery_copy_block() to take a folio
Date: Thu, 24 Oct 2024 18:25:45 +0900
Use memcpy_to_folio() instead of open-coding it, and use offset_in_folio()
in case anybody wants to use nilfs2 on a device with large blocks.
[konishi.ryusuke@xxxxxxxxx: added label name change]
Link: https://lkml.kernel.org/r/20241002150036.1339475-4-willy@xxxxxxxxxxxxx
Link: https://lkml.kernel.org/r/20241024092602.13395-12-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/recovery.c | 17 +++++++----------
1 file changed, 7 insertions(+), 10 deletions(-)
--- a/fs/nilfs2/recovery.c~nilfs2-convert-nilfs_recovery_copy_block-to-take-a-folio
+++ a/fs/nilfs2/recovery.c
@@ -481,19 +481,16 @@ static int nilfs_prepare_segment_for_rec
static int nilfs_recovery_copy_block(struct the_nilfs *nilfs,
struct nilfs_recovery_block *rb,
- loff_t pos, struct page *page)
+ loff_t pos, struct folio *folio)
{
struct buffer_head *bh_org;
- size_t from = pos & ~PAGE_MASK;
- void *kaddr;
+ size_t from = offset_in_folio(folio, pos);
bh_org = __bread(nilfs->ns_bdev, rb->blocknr, nilfs->ns_blocksize);
if (unlikely(!bh_org))
return -EIO;
- kaddr = kmap_local_page(page);
- memcpy(kaddr + from, bh_org->b_data, bh_org->b_size);
- kunmap_local(kaddr);
+ memcpy_to_folio(folio, from, bh_org->b_data, bh_org->b_size);
brelse(bh_org);
return 0;
}
@@ -531,13 +528,13 @@ static int nilfs_recover_dsync_blocks(st
goto failed_inode;
}
- err = nilfs_recovery_copy_block(nilfs, rb, pos, &folio->page);
+ err = nilfs_recovery_copy_block(nilfs, rb, pos, folio);
if (unlikely(err))
- goto failed_page;
+ goto failed_folio;
err = nilfs_set_file_dirty(inode, 1);
if (unlikely(err))
- goto failed_page;
+ goto failed_folio;
block_write_end(NULL, inode->i_mapping, pos, blocksize,
blocksize, folio, NULL);
@@ -548,7 +545,7 @@ static int nilfs_recover_dsync_blocks(st
(*nr_salvaged_blocks)++;
goto next;
- failed_page:
+ failed_folio:
folio_unlock(folio);
folio_put(folio);
_
Patches currently in -mm which might be from willy@xxxxxxxxxxxxx are
ksm-use-a-folio-in-try_to_merge_one_page.patch
ksm-convert-cmp_and_merge_page-to-use-a-folio.patch
ksm-convert-should_skip_rmap_item-to-take-a-folio.patch
mm-add-pageanonnotksm.patch
mm-add-pageanonnotksm-fix.patch
mm-remove-pageksm.patch
gup-convert-foll_touch-case-in-follow_page_pte-to-folio.patch
mm-convert-page_to_pgoff-to-page_pgoff.patch
mm-use-page_pgoff-in-more-places.patch
mm-renovate-page_address_in_vma.patch
mm-mass-constification-of-folio-page-pointers.patch
bootmem-stop-using-page-index.patch
mm-remove-references-to-page-index-in-huge_memoryc.patch
mm-use-page-private-instead-of-page-index-in-percpu.patch
nilfs2-remove-nilfs_writepage.patch
nilfs2-convert-nilfs_page_count_clean_buffers-to-take-a-folio.patch
nilfs2-convert-nilfs_recovery_copy_block-to-take-a-folio.patch
nilfs2-convert-metadata-aops-from-writepage-to-writepages.patch
