iomap: Rename page_ops to folio_ops

The operations in struct page_ops all operate on folios, so rename
struct page_ops to struct folio_ops.
Signed-off-by: Andreas Gruenbacher <agruenba@redhat.com>
Reviewed-by: Darrick J. Wong <djwong@kernel.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
[djwong: port around not removing iomap_valid]
Signed-off-by: Darrick J. Wong <djwong@kernel.org>

fs/gfs2/bmap.c

@@ -997,7 +997,7 @@ static void gfs2_iomap_put_folio(struct inode *inode, loff_t pos,
 	gfs2_trans_end(sdp);
 }
 
-static const struct iomap_page_ops gfs2_iomap_page_ops = {
+static const struct iomap_folio_ops gfs2_iomap_folio_ops = {
 	.get_folio = gfs2_iomap_get_folio,
 	.put_folio = gfs2_iomap_put_folio,
 };
@@ -1075,7 +1075,7 @@ static int gfs2_iomap_begin_write(struct inode *inode, loff_t pos,
 	}
 
 	if (gfs2_is_stuffed(ip) || gfs2_is_jdata(ip))
-		iomap->page_ops = &gfs2_iomap_page_ops;
+		iomap->folio_ops = &gfs2_iomap_folio_ops;
 	return 0;
 
 out_trans_end:

fs/iomap/buffered-io.c

@@ -605,10 +605,10 @@ static int __iomap_write_begin(const struct iomap_iter *iter, loff_t pos,
 static struct folio *__iomap_get_folio(struct iomap_iter *iter, loff_t pos,
 		size_t len)
 {
-	const struct iomap_page_ops *page_ops = iter->iomap.page_ops;
+	const struct iomap_folio_ops *folio_ops = iter->iomap.folio_ops;
 
-	if (page_ops && page_ops->get_folio)
-		return page_ops->get_folio(iter, pos, len);
+	if (folio_ops && folio_ops->get_folio)
+		return folio_ops->get_folio(iter, pos, len);
 	else
 		return iomap_get_folio(iter, pos);
 }
@@ -616,10 +616,10 @@ static struct folio *__iomap_get_folio(struct iomap_iter *iter, loff_t pos,
 static void __iomap_put_folio(struct iomap_iter *iter, loff_t pos, size_t ret,
 		struct folio *folio)
 {
-	const struct iomap_page_ops *page_ops = iter->iomap.page_ops;
+	const struct iomap_folio_ops *folio_ops = iter->iomap.folio_ops;
 
-	if (page_ops && page_ops->put_folio) {
-		page_ops->put_folio(iter->inode, pos, ret, folio);
+	if (folio_ops && folio_ops->put_folio) {
+		folio_ops->put_folio(iter->inode, pos, ret, folio);
 	} else {
 		folio_unlock(folio);
 		folio_put(folio);
@@ -638,7 +638,7 @@ static int iomap_write_begin_inline(const struct iomap_iter *iter,
 static int iomap_write_begin(struct iomap_iter *iter, loff_t pos,
 		size_t len, struct folio **foliop)
 {
-	const struct iomap_page_ops *page_ops = iter->iomap.page_ops;
+	const struct iomap_folio_ops *folio_ops = iter->iomap.folio_ops;
 	const struct iomap *srcmap = iomap_iter_srcmap(iter);
 	struct folio *folio;
 	int status = 0;
@@ -667,9 +667,9 @@ static int iomap_write_begin(struct iomap_iter *iter, loff_t pos,
 	 * could do the wrong thing here (zero a page range incorrectly or fail
 	 * to zero) and corrupt data.
 	 */
-	if (page_ops && page_ops->iomap_valid) {
-		bool iomap_valid = page_ops->iomap_valid(iter->inode,
-							&iter->iomap);
+	if (folio_ops && folio_ops->iomap_valid) {
+		bool iomap_valid = folio_ops->iomap_valid(iter->inode,
+							 &iter->iomap);
 		if (!iomap_valid) {
 			iter->iomap.flags |= IOMAP_F_STALE;
 			status = 0;

fs/xfs/xfs_iomap.c

@@ -83,7 +83,7 @@ xfs_iomap_valid(
 	return true;
 }
 
-static const struct iomap_page_ops xfs_iomap_page_ops = {
+static const struct iomap_folio_ops xfs_iomap_folio_ops = {
 	.iomap_valid		= xfs_iomap_valid,
 };
 
@@ -133,7 +133,7 @@ xfs_bmbt_to_iomap(
 		iomap->flags |= IOMAP_F_DIRTY;
 
 	iomap->validity_cookie = sequence_cookie;
-	iomap->page_ops = &xfs_iomap_page_ops;
+	iomap->folio_ops = &xfs_iomap_folio_ops;
 	return 0;
 }
 

include/linux/iomap.h

@@ -86,7 +86,7 @@ struct vm_fault;
  */
 #define IOMAP_NULL_ADDR -1ULL	/* addr is not valid */
 
-struct iomap_page_ops;
+struct iomap_folio_ops;
 
 struct iomap {
 	u64			addr; /* disk offset of mapping, bytes */
@@ -98,7 +98,7 @@ struct iomap {
 	struct dax_device	*dax_dev; /* dax_dev for dax operations */
 	void			*inline_data;
 	void			*private; /* filesystem private */
-	const struct iomap_page_ops *page_ops;
+	const struct iomap_folio_ops *folio_ops;
 	u64			validity_cookie; /* used with .iomap_valid() */
 };
 
@@ -126,7 +126,7 @@ static inline bool iomap_inline_data_valid(const struct iomap *iomap)
 }
 
 /*
- * When a filesystem sets page_ops in an iomap mapping it returns, get_folio
+ * When a filesystem sets folio_ops in an iomap mapping it returns, get_folio
  * and put_folio will be called for each folio written to.  This only applies
  * to buffered writes as unbuffered writes will not typically have folios
  * associated with them.
@@ -135,7 +135,7 @@ static inline bool iomap_inline_data_valid(const struct iomap *iomap)
  * cleanup work necessary.  put_folio is responsible for unlocking and putting
  * @folio.
  */
-struct iomap_page_ops {
+struct iomap_folio_ops {
 	struct folio *(*get_folio)(struct iomap_iter *iter, loff_t pos,
 			unsigned len);
 	void (*put_folio)(struct inode *inode, loff_t pos, unsigned copied,