Merge tag 'folio-5.19' of git://git.infradead.org/users/willy/pagecache

Pull page cache updates from Matthew Wilcox:

 - Appoint myself page cache maintainer

 - Fix how scsicam uses the page cache

 - Use the memalloc_nofs_save() API to replace AOP_FLAG_NOFS

 - Remove the AOP flags entirely

 - Remove pagecache_write_begin() and pagecache_write_end()

 - Documentation updates

 - Convert several address_space operations to use folios:
     - is_dirty_writeback
     - readpage becomes read_folio
     - releasepage becomes release_folio
     - freepage becomes free_folio

 - Change filler_t to require a struct file pointer be the first
   argument like ->read_folio

* tag 'folio-5.19' of git://git.infradead.org/users/willy/pagecache: (107 commits)
  nilfs2: Fix some kernel-doc comments
  Appoint myself page cache maintainer
  fs: Remove aops->freepage
  secretmem: Convert to free_folio
  nfs: Convert to free_folio
  orangefs: Convert to free_folio
  fs: Add free_folio address space operation
  fs: Convert drop_buffers() to use a folio
  fs: Change try_to_free_buffers() to take a folio
  jbd2: Convert release_buffer_page() to use a folio
  jbd2: Convert jbd2_journal_try_to_free_buffers to take a folio
  reiserfs: Convert release_buffer_page() to use a folio
  fs: Remove last vestiges of releasepage
  ubifs: Convert to release_folio
  reiserfs: Convert to release_folio
  orangefs: Convert to release_folio
  ocfs2: Convert to release_folio
  nilfs2: Remove comment about releasepage
  nfs: Convert to release_folio
  jfs: Convert to release_folio
  ...

1 files changed, 8 insertions, 6 deletions

diff --git a/fs/jbd2/commit.c b/fs/jbd2/commit.c
index ac7f067b7bdd..eb315e81f1a6 100644
--- a/fs/jbd2/commit.c
+++ b/fs/jbd2/commit.c
@@ -62,6 +62,7 @@ static void journal_end_buffer_io_sync(struct buffer_head *bh, int uptodate)
  */
 static void release_buffer_page(struct buffer_head *bh)
 {
+	struct folio *folio;
 	struct page *page;
 
 	if (buffer_dirty(bh))
@@ -71,18 +72,19 @@ static void release_buffer_page(struct buffer_head *bh)
 	page = bh->b_page;
 	if (!page)
 		goto nope;
-	if (page->mapping)
+	folio = page_folio(page);
+	if (folio->mapping)
 		goto nope;
 
 	/* OK, it's a truncated page */
-	if (!trylock_page(page))
+	if (!folio_trylock(folio))
 		goto nope;
 
-	get_page(page);
+	folio_get(folio);
 	__brelse(bh);
-	try_to_free_buffers(page);
-	unlock_page(page);
-	put_page(page);
+	try_to_free_buffers(folio);
+	folio_unlock(folio);
+	folio_put(folio);
 	return;
 
 nope: