[PATCH v3 4/4] ntfs: Remove references to page->__folio_index

From: "Matthew Wilcox (Oracle)" <[email protected]>

Pages don't have indexes, folios have indexes.  Correct this in
ntfs_read_compressed_block() and also remove a use of page->mapping
while I'm in here.  Also convert the calls to unlock_page() and
flush_dcache_page().

Signed-off-by: Matthew Wilcox (Oracle) <[email protected]>
Cc: Christoph Hellwig <[email protected]>
Cc: Hyunchul Lee <[email protected]>
Cc: Namjae Jeon <[email protected]>
Reviewed-by: Hyunchul Lee <[email protected]>
Acked-by: Namjae Jeon <[email protected]>
---
 fs/ntfs/compress.c | 14 ++++++++------
 1 file changed, 8 insertions(+), 6 deletions(-)

diff --git a/fs/ntfs/compress.c b/fs/ntfs/compress.c
index f03fae63c199..d83d3e8e06ae 100644
--- a/fs/ntfs/compress.c
+++ b/fs/ntfs/compress.c
@@ -456,14 +456,14 @@ int ntfs_read_compressed_block(struct folio *folio)
 	struct page *page = &folio->page;
 	loff_t i_size;
 	s64 initialized_size;
-	struct address_space *mapping = page->mapping;
+	struct address_space *mapping = folio->mapping;
 	struct ntfs_inode *ni = NTFS_I(mapping->host);
 	struct ntfs_volume *vol = ni->vol;
 	struct super_block *sb = vol->sb;
 	struct runlist_element *rl;
 	unsigned long flags;
 	u8 *cb, *cb_pos, *cb_end;
-	unsigned long offset, index = page->__folio_index;
+	unsigned long offset, index = folio->index;
 	u32 cb_size = ni->itype.compressed.block_size;
 	u64 cb_size_mask = cb_size - 1UL;
 	s64 vcn;
@@ -812,14 +812,16 @@ int ntfs_read_compressed_block(struct folio *folio)
 	for (cur_page = 0; cur_page < max_page; cur_page++) {
 		page = pages[cur_page];
 		if (page) {
+			folio = page_folio(page);
+
 			ntfs_error(vol->sb,
 				"Still have pages left! Terminating them with extreme prejudice.  Inode 0x%llx, page index 0x%lx.",
-				ni->mft_no, page->__folio_index);
-			flush_dcache_page(page);
+				ni->mft_no, folio->index);
+			flush_dcache_folio(folio);
 			kunmap_local(page_address(page));
-			unlock_page(page);
+			folio_unlock(folio);
 			if (cur_page != xpage)
-				put_page(page);
+				folio_put(folio);
 			pages[cur_page] = NULL;
 		}
 	}

-- 
2.43.0