[PATCH 10/12] nilfs2: Replace obvious uses of b_page with b_folio

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

These places just use b_page to get to the buffer's address_space
or the index of the page the buffer is in.

Signed-off-by: Matthew Wilcox (Oracle) <willy@xxxxxxxxxxxxx>
---
 fs/nilfs2/btnode.c  | 2 +-
 fs/nilfs2/btree.c   | 2 +-
 fs/nilfs2/gcinode.c | 2 +-
 fs/nilfs2/mdt.c     | 4 ++--
 fs/nilfs2/segment.c | 2 +-
 5 files changed, 6 insertions(+), 6 deletions(-)

diff --git a/fs/nilfs2/btnode.c b/fs/nilfs2/btnode.c
index e74fda212620..e956f886a1a1 100644
--- a/fs/nilfs2/btnode.c
+++ b/fs/nilfs2/btnode.c
@@ -188,7 +188,7 @@ int nilfs_btnode_prepare_change_key(struct address_space *btnc,
 		struct page *opage = obh->b_page;
 		lock_page(opage);
 retry:
-		/* BUG_ON(oldkey != obh->b_page->index); */
+		/* BUG_ON(oldkey != obh->b_folio->index); */
 		if (unlikely(oldkey != opage->index))
 			NILFS_PAGE_BUG(opage,
 				       "invalid oldkey %lld (newkey=%lld)",
diff --git a/fs/nilfs2/btree.c b/fs/nilfs2/btree.c
index b9d15c3df3cc..6b914217b0c7 100644
--- a/fs/nilfs2/btree.c
+++ b/fs/nilfs2/btree.c
@@ -398,7 +398,7 @@ int nilfs_btree_broken_node_block(struct buffer_head *bh)
 	if (buffer_nilfs_checked(bh))
 		return 0;
 
-	inode = bh->b_page->mapping->host;
+	inode = bh->b_folio->mapping->host;
 	ret = nilfs_btree_node_broken((struct nilfs_btree_node *)bh->b_data,
 				      bh->b_size, inode, bh->b_blocknr);
 	if (likely(!ret))
diff --git a/fs/nilfs2/gcinode.c b/fs/nilfs2/gcinode.c
index b0d22ff24b67..48fe71d309cb 100644
--- a/fs/nilfs2/gcinode.c
+++ b/fs/nilfs2/gcinode.c
@@ -140,7 +140,7 @@ int nilfs_gccache_wait_and_mark_dirty(struct buffer_head *bh)
 {
 	wait_on_buffer(bh);
 	if (!buffer_uptodate(bh)) {
-		struct inode *inode = bh->b_page->mapping->host;
+		struct inode *inode = bh->b_folio->mapping->host;
 
 		nilfs_err(inode->i_sb,
 			  "I/O error reading %s block for GC (ino=%lu, vblocknr=%llu)",
diff --git a/fs/nilfs2/mdt.c b/fs/nilfs2/mdt.c
index cbf4fa60eea2..19c8158605ed 100644
--- a/fs/nilfs2/mdt.c
+++ b/fs/nilfs2/mdt.c
@@ -563,7 +563,7 @@ int nilfs_mdt_freeze_buffer(struct inode *inode, struct buffer_head *bh)
 	struct page *page;
 	int blkbits = inode->i_blkbits;
 
-	page = grab_cache_page(shadow->inode->i_mapping, bh->b_page->index);
+	page = grab_cache_page(shadow->inode->i_mapping, bh->b_folio->index);
 	if (!page)
 		return -ENOMEM;
 
@@ -595,7 +595,7 @@ nilfs_mdt_get_frozen_buffer(struct inode *inode, struct buffer_head *bh)
 	struct page *page;
 	int n;
 
-	page = find_lock_page(shadow->inode->i_mapping, bh->b_page->index);
+	page = find_lock_page(shadow->inode->i_mapping, bh->b_folio->index);
 	if (page) {
 		if (page_has_buffers(page)) {
 			n = bh_offset(bh) >> inode->i_blkbits;
diff --git a/fs/nilfs2/segment.c b/fs/nilfs2/segment.c
index 3335ef352915..05a151e5c52b 100644
--- a/fs/nilfs2/segment.c
+++ b/fs/nilfs2/segment.c
@@ -1581,7 +1581,7 @@ nilfs_segctor_update_payload_blocknr(struct nilfs_sc_info *sci,
 			nblocks = le32_to_cpu(finfo->fi_nblocks);
 			ndatablk = le32_to_cpu(finfo->fi_ndatablk);
 
-			inode = bh->b_page->mapping->host;
+			inode = bh->b_folio->mapping->host;
 
 			if (mode == SC_LSEG_DSYNC)
 				sc_op = &nilfs_sc_dsync_ops;
-- 
2.35.1