[PATCH 6/9] f2fs: convert f2fs_do_write_meta_page() to use folio

[Chao Yu <chao@kernel.org>]

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@casper.infradead.org/

Cc: Matthew Wilcox <willy@infradead.org>
Signed-off-by: Chao Yu <chao@kernel.org>
---
 fs/f2fs/checkpoint.c |  2 +-
 fs/f2fs/f2fs.h       |  2 +-
 fs/f2fs/segment.c    | 14 +++++++-------
 3 files changed, 9 insertions(+), 9 deletions(-)

diff --git a/fs/f2fs/checkpoint.c b/fs/f2fs/checkpoint.c
index f3d22b8ef2ff..d73d4d05313e 100644
--- a/fs/f2fs/checkpoint.c
+++ b/fs/f2fs/checkpoint.c
@@ -362,7 +362,7 @@ static int __f2fs_write_meta_page(struct page *page,
 	if (wbc->for_reclaim && page->index < GET_SUM_BLOCK(sbi, 0))
 		goto redirty_out;
 
-	f2fs_do_write_meta_page(sbi, page, io_type);
+	f2fs_do_write_meta_page(sbi, page_folio(page), io_type);
 	dec_page_count(sbi, F2FS_DIRTY_META);
 
 	if (wbc->for_reclaim)
diff --git a/fs/f2fs/f2fs.h b/fs/f2fs/f2fs.h
index 5800ac90a5f7..c29ed8b6eea6 100644
--- a/fs/f2fs/f2fs.h
+++ b/fs/f2fs/f2fs.h
@@ -3732,7 +3732,7 @@ bool f2fs_exist_trim_candidates(struct f2fs_sb_info *sbi,
 struct page *f2fs_get_sum_page(struct f2fs_sb_info *sbi, unsigned int segno);
 void f2fs_update_meta_page(struct f2fs_sb_info *sbi, void *src,
 					block_t blk_addr);
-void f2fs_do_write_meta_page(struct f2fs_sb_info *sbi, struct page *page,
+void f2fs_do_write_meta_page(struct f2fs_sb_info *sbi, struct folio *folio,
 						enum iostat_type io_type);
 void f2fs_do_write_node_page(unsigned int nid, struct f2fs_io_info *fio);
 void f2fs_outplace_write_data(struct dnode_of_data *dn,
diff --git a/fs/f2fs/segment.c b/fs/f2fs/segment.c
index 741e46f9d0fd..2d1965bed443 100644
--- a/fs/f2fs/segment.c
+++ b/fs/f2fs/segment.c
@@ -3822,7 +3822,7 @@ static void do_write_page(struct f2fs_summary *sum, struct f2fs_io_info *fio)
 		f2fs_up_read(&fio->sbi->io_order_lock);
 }
 
-void f2fs_do_write_meta_page(struct f2fs_sb_info *sbi, struct page *page,
+void f2fs_do_write_meta_page(struct f2fs_sb_info *sbi, struct folio *folio,
 					enum iostat_type io_type)
 {
 	struct f2fs_io_info fio = {
@@ -3831,20 +3831,20 @@ void f2fs_do_write_meta_page(struct f2fs_sb_info *sbi, struct page *page,
 		.temp = HOT,
 		.op = REQ_OP_WRITE,
 		.op_flags = REQ_SYNC | REQ_META | REQ_PRIO,
-		.old_blkaddr = page->index,
-		.new_blkaddr = page->index,
-		.page = page,
+		.old_blkaddr = folio->index,
+		.new_blkaddr = folio->index,
+		.page = folio_page(folio, 0),
 		.encrypted_page = NULL,
 		.in_list = 0,
 	};
 
-	if (unlikely(page->index >= MAIN_BLKADDR(sbi)))
+	if (unlikely(folio->index >= MAIN_BLKADDR(sbi)))
 		fio.op_flags &= ~REQ_META;
 
-	set_page_writeback(page);
+	folio_start_writeback(folio);
 	f2fs_submit_page_write(&fio);
 
-	stat_inc_meta_count(sbi, page->index);
+	stat_inc_meta_count(sbi, folio->index);
 	f2fs_update_iostat(sbi, NULL, io_type, F2FS_BLKSIZE);
 }
 
-- 
2.40.1