nilfs2: convert nilfs_forget_buffer to use a folio

Save two hidden calls to compound_head().

Link: https://lkml.kernel.org/r/20231114084436.2755-5-konishi.ryusuke@gmail.com
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Signed-off-by: Ryusuke Konishi <konishi.ryusuke@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>

diff --git a/fs/nilfs2/page.c b/fs/nilfs2/page.c
index 06b04758f289b81394e8ebe9f410658236b6593b..3882acde1b3ee23363ceeae5ac29059268398706 100644 (file)
--- a/fs/nilfs2/page.c
+++ b/fs/nilfs2/page.c
@@ -73,7 +73,7 @@ struct buffer_head *nilfs_grab_buffer(struct inode *inode,
  */
 void nilfs_forget_buffer(struct buffer_head *bh)
 {
-       struct page *page = bh->b_page;
+       struct folio *folio = bh->b_folio;
        const unsigned long clear_bits =
                (BIT(BH_Uptodate) | BIT(BH_Dirty) | BIT(BH_Mapped) |
                 BIT(BH_Async_Write) | BIT(BH_NILFS_Volatile) |
@@ -81,12 +81,12 @@ void nilfs_forget_buffer(struct buffer_head *bh)
 
        lock_buffer(bh);
        set_mask_bits(&bh->b_state, clear_bits, 0);
-       if (nilfs_page_buffers_clean(page))
-               __nilfs_clear_page_dirty(page);
+       if (nilfs_page_buffers_clean(&folio->page))
+               __nilfs_clear_page_dirty(&folio->page);
 
        bh->b_blocknr = -1;
-       ClearPageUptodate(page);
-       ClearPageMappedToDisk(page);
+       folio_clear_uptodate(folio);
+       folio_clear_mappedtodisk(folio);
        unlock_buffer(bh);
        brelse(bh);
 }