[PATCH 22/27] f2fs: Add f2fs_get_lock_data_folio()

["Matthew Wilcox (Oracle)" <willy@xxxxxxxxxxxxx>]

Convert f2fs_get_lock_data_page() to f2fs_get_lock_data_folio() and
add a compatibility wrapper.  Removes three hidden calls to
compound_head().

Signed-off-by: Matthew Wilcox (Oracle) <willy@xxxxxxxxxxxxx>
---
 fs/f2fs/data.c | 18 +++++++++---------
 fs/f2fs/f2fs.h | 10 +++++++++-
 2 files changed, 18 insertions(+), 10 deletions(-)

diff --git a/fs/f2fs/data.c b/fs/f2fs/data.c
index f0747c7f669d..e891c95bc525 100644
--- a/fs/f2fs/data.c
+++ b/fs/f2fs/data.c
@@ -1310,23 +1310,23 @@ struct page *f2fs_find_data_page(struct inode *inode, pgoff_t index,
  * Because, the callers, functions in dir.c and GC, should be able to know
  * whether this page exists or not.
  */
-struct page *f2fs_get_lock_data_page(struct inode *inode, pgoff_t index,
+struct folio *f2fs_get_lock_data_folio(struct inode *inode, pgoff_t index,
 							bool for_write)
 {
 	struct address_space *mapping = inode->i_mapping;
-	struct page *page;
+	struct folio *folio;
 
-	page = f2fs_get_read_data_page(inode, index, 0, for_write, NULL);
-	if (IS_ERR(page))
-		return page;
+	folio = f2fs_get_read_data_folio(inode, index, 0, for_write, NULL);
+	if (IS_ERR(folio))
+		return folio;
 
 	/* wait for read completion */
-	lock_page(page);
-	if (unlikely(page->mapping != mapping || !PageUptodate(page))) {
-		f2fs_put_page(page, 1);
+	folio_lock(folio);
+	if (unlikely(folio->mapping != mapping || !folio_test_uptodate(folio))) {
+		f2fs_folio_put(folio, true);
 		return ERR_PTR(-EIO);
 	}
-	return page;
+	return folio;
 }
 
 /*
diff --git a/fs/f2fs/f2fs.h b/fs/f2fs/f2fs.h
index 3e02df63499e..c78ba3c7d642 100644
--- a/fs/f2fs/f2fs.h
+++ b/fs/f2fs/f2fs.h
@@ -3899,7 +3899,7 @@ struct folio *f2fs_get_read_data_folio(struct inode *inode, pgoff_t index,
 		blk_opf_t op_flags, bool for_write, pgoff_t *next_pgofs);
 struct page *f2fs_find_data_page(struct inode *inode, pgoff_t index,
 							pgoff_t *next_pgofs);
-struct page *f2fs_get_lock_data_page(struct inode *inode, pgoff_t index,
+struct folio *f2fs_get_lock_data_folio(struct inode *inode, pgoff_t index,
 			bool for_write);
 struct page *f2fs_get_new_data_page(struct inode *inode,
 			struct page *ipage, pgoff_t index, bool new_i_size);
@@ -3936,6 +3936,14 @@ static inline struct page *f2fs_get_read_data_page(struct inode *inode,
 	return &folio->page;
 }
 
+static inline struct page *f2fs_get_lock_data_page(struct inode *inode,
+		pgoff_t index, bool for_write)
+{
+	struct folio *folio = f2fs_get_lock_data_folio(inode, index, for_write);
+
+	return &folio->page;
+}
+
 /*
  * gc.c
  */
-- 
2.47.2