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List: ocfs2-devel
Subject: [PATCH v2 10/27] nilfs2: Convert nilfs_mdt_freeze_buffer to use a folio
From: "Matthew Wilcox (Oracle)" <willy () infradead ! org>
Date: 2023-10-16 20:10:57
Message-ID: 20231016201114.1928083-11-willy () infradead ! org
[Download RAW message or body]
Remove a number of folio->page->folio conversions.
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Acked-by: Ryusuke Konishi <konishi.ryusuke@gmail.com>
---
fs/nilfs2/mdt.c | 20 +++++++++++---------
1 file changed, 11 insertions(+), 9 deletions(-)
diff --git a/fs/nilfs2/mdt.c b/fs/nilfs2/mdt.c
index 19c8158605ed..db2260d6e44d 100644
--- a/fs/nilfs2/mdt.c
+++ b/fs/nilfs2/mdt.c
@@ -560,17 +560,19 @@ int nilfs_mdt_freeze_buffer(struct inode *inode, struct buffer_head *bh)
{
struct nilfs_shadow_map *shadow = NILFS_MDT(inode)->mi_shadow;
struct buffer_head *bh_frozen;
- struct page *page;
+ struct folio *folio;
int blkbits = inode->i_blkbits;
- page = grab_cache_page(shadow->inode->i_mapping, bh->b_folio->index);
- if (!page)
- return -ENOMEM;
+ folio = filemap_grab_folio(shadow->inode->i_mapping,
+ bh->b_folio->index);
+ if (IS_ERR(folio))
+ return PTR_ERR(folio);
- if (!page_has_buffers(page))
- create_empty_buffers(page, 1 << blkbits, 0);
+ bh_frozen = folio_buffers(folio);
+ if (!bh_frozen)
+ bh_frozen = folio_create_empty_buffers(folio, 1 << blkbits, 0);
- bh_frozen = nilfs_page_get_nth_block(page, bh_offset(bh) >> blkbits);
+ bh_frozen = get_nth_bh(bh_frozen, bh_offset(bh) >> blkbits);
if (!buffer_uptodate(bh_frozen))
nilfs_copy_buffer(bh_frozen, bh);
@@ -582,8 +584,8 @@ int nilfs_mdt_freeze_buffer(struct inode *inode, struct buffer_head *bh)
brelse(bh_frozen); /* already frozen */
}
- unlock_page(page);
- put_page(page);
+ folio_unlock(folio);
+ folio_put(folio);
return 0;
}
--
2.40.1
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