[PATCH 7/9] f2fs: convert __f2fs_write_meta_page() to use folio

[Chao Yu]

Convert to use folio, so that we can get rid of 'page->index' to
prepare for removal of 'index' field in structure page [1].

[1] https://lore.kernel.org/all/Zp8fgUSIBGQ1TN0D@xxxxxxxxxxxxxxxxxxxx/

Cc: Matthew Wilcox <willy@xxxxxxxxxxxxx>
Signed-off-by: Chao Yu <chao@xxxxxxxxxx>
---
 fs/f2fs/checkpoint.c | 13 +++++++------
 1 file changed, 7 insertions(+), 6 deletions(-)

diff --git a/fs/f2fs/checkpoint.c b/fs/f2fs/checkpoint.c
index d73d4d05313e..ffaf295a198a 100644
--- a/fs/f2fs/checkpoint.c
+++ b/fs/f2fs/checkpoint.c
@@ -345,30 +345,31 @@ static int __f2fs_write_meta_page(struct page *page,
 				enum iostat_type io_type)
 {
 	struct f2fs_sb_info *sbi = F2FS_P_SB(page);
+	struct folio *folio = page_folio(page);
 
-	trace_f2fs_writepage(page_folio(page), META);
+	trace_f2fs_writepage(folio, META);
 
 	if (unlikely(f2fs_cp_error(sbi))) {
 		if (is_sbi_flag_set(sbi, SBI_IS_CLOSE)) {
-			ClearPageUptodate(page);
+			folio_clear_uptodate(folio);
 			dec_page_count(sbi, F2FS_DIRTY_META);
-			unlock_page(page);
+			folio_unlock(folio);
 			return 0;
 		}
 		goto redirty_out;
 	}
 	if (unlikely(is_sbi_flag_set(sbi, SBI_POR_DOING)))
 		goto redirty_out;
-	if (wbc->for_reclaim && page->index < GET_SUM_BLOCK(sbi, 0))
+	if (wbc->for_reclaim && folio->index < GET_SUM_BLOCK(sbi, 0))
 		goto redirty_out;
 
-	f2fs_do_write_meta_page(sbi, page_folio(page), io_type);
+	f2fs_do_write_meta_page(sbi, folio, io_type);
 	dec_page_count(sbi, F2FS_DIRTY_META);
 
 	if (wbc->for_reclaim)
 		f2fs_submit_merged_write_cond(sbi, NULL, page, 0, META);
 
-	unlock_page(page);
+	folio_unlock(folio);
 
 	if (unlikely(f2fs_cp_error(sbi)))
 		f2fs_submit_merged_write(sbi, META);
-- 
2.40.1