btrfs: convert extent_write_locked_range() to take a folio

This mostly uses folios, convert it to take a folio instead and update
the callers to pass in the folio.
Signed-off-by: Josef Bacik <josef@toxicpanda.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>

fs/btrfs/extent_io.c

@@ -2274,7 +2274,7 @@ static int extent_write_cache_pages(struct address_space *mapping,
  * already been ran (aka, ordered extent inserted) and all pages are still
  * locked.
  */
-void extent_write_locked_range(struct inode *inode, const struct page *locked_page,
+void extent_write_locked_range(struct inode *inode, const struct folio *locked_folio,
 			       u64 start, u64 end, struct writeback_control *wbc,
 			       bool pages_dirty)
 {
@@ -2316,7 +2316,7 @@ void extent_write_locked_range(struct inode *inode, const struct page *locked_pa
 		}
 
 		ASSERT(folio_test_locked(folio));
-		if (pages_dirty && &folio->page != locked_page)
+		if (pages_dirty && folio != locked_folio)
 			ASSERT(folio_test_dirty(folio));
 
 		ret = __extent_writepage_io(BTRFS_I(inode), folio, cur, cur_len,

fs/btrfs/extent_io.h

@@ -240,7 +240,7 @@ bool try_release_extent_mapping(struct page *page, gfp_t mask);
 int try_release_extent_buffer(struct page *page);
 
 int btrfs_read_folio(struct file *file, struct folio *folio);
-void extent_write_locked_range(struct inode *inode, const struct page *locked_page,
+void extent_write_locked_range(struct inode *inode, const struct folio *locked_folio,
 			       u64 start, u64 end, struct writeback_control *wbc,
 			       bool pages_dirty);
 int btrfs_writepages(struct address_space *mapping, struct writeback_control *wbc);

fs/btrfs/inode.c

@@ -1758,7 +1758,8 @@ static noinline int run_delalloc_cow(struct btrfs_inode *inode,
 				     true, false);
 		if (ret)
 			return ret;
-		extent_write_locked_range(&inode->vfs_inode, locked_page, start,
+		extent_write_locked_range(&inode->vfs_inode,
+					  page_folio(locked_page), start,
 					  done_offset, wbc, pages_dirty);
 		start = done_offset + 1;
 	}