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Subject[PATCH 06/20] nilfs2: Convert nilfs_writepage() to use a folio
Date
From: "Matthew Wilcox (Oracle)" <willy@infradead.org>

Convert the incoming page to a folio. Replaces three calls to
compound_head() with one.

Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Signed-off-by: Ryusuke Konishi <konishi.ryusuke@gmail.com>
---
fs/nilfs2/inode.c | 9 +++++----
1 file changed, 5 insertions(+), 4 deletions(-)

diff --git a/fs/nilfs2/inode.c b/fs/nilfs2/inode.c
index f861f3a0bf5c..c7ec56358a79 100644
--- a/fs/nilfs2/inode.c
+++ b/fs/nilfs2/inode.c
@@ -175,7 +175,8 @@ static int nilfs_writepages(struct address_space *mapping,

static int nilfs_writepage(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;
int err;

if (sb_rdonly(inode->i_sb)) {
@@ -186,12 +187,12 @@ static int nilfs_writepage(struct page *page, struct writeback_control *wbc)
* So, here we simply discard this dirty page.
*/
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 (wbc->sync_mode == WB_SYNC_ALL) {
err = nilfs_construct_segment(inode->i_sb);
--
2.34.1
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