iomap: rename iomap_writepage_map to iomap_writeback_folio

JIRA: https://issues.redhat.com/browse/RHEL-121230

commit 58f0d5a
Author: Christoph Hellwig <hch@lst.de>
Date:   Thu Jul 10 15:33:32 2025 +0200

    iomap: rename iomap_writepage_map to iomap_writeback_folio

    ->writepage is gone, and our naming wasn't always that great to start
    with.

    Signed-off-by: Christoph Hellwig <hch@lst.de>
    Link: https://lore.kernel.org/20250710133343.399917-9-hch@lst.de
    Reviewed-by: Brian Foster <bfoster@redhat.com>
    Reviewed-by: Joanne Koong <joannelkoong@gmail.com>
    Reviewed-by: Darrick J. Wong <djwong@kernel.org>
    Signed-off-by: Christian Brauner <brauner@kernel.org>

Signed-off-by: Brian Foster <bfoster@redhat.com>

Author: Brian Foster

fs/iomap/buffered-io.c

@@ -1581,7 +1581,7 @@ static int iomap_writeback_range(struct iomap_writepage_ctx *wpc,
  * If the folio is entirely beyond i_size, return false.  If it straddles
  * i_size, adjust end_pos and zero all data beyond i_size.
  */
-static bool iomap_writepage_handle_eof(struct folio *folio, struct inode *inode,
+static bool iomap_writeback_handle_eof(struct folio *folio, struct inode *inode,
 		u64 *end_pos)
 {
 	u64 isize = i_size_read(inode);
@@ -1633,7 +1633,7 @@ static bool iomap_writepage_handle_eof(struct folio *folio, struct inode *inode,
 	return true;
 }
 
-static int iomap_writepage_map(struct iomap_writepage_ctx *wpc,
+static int iomap_writeback_folio(struct iomap_writepage_ctx *wpc,
 		struct folio *folio)
 {
 	struct iomap_folio_state *ifs = folio->private;
@@ -1649,9 +1649,9 @@ static int iomap_writepage_map(struct iomap_writepage_ctx *wpc,
 	WARN_ON_ONCE(folio_test_dirty(folio));
 	WARN_ON_ONCE(folio_test_writeback(folio));
 
-	trace_iomap_writepage(inode, pos, folio_size(folio));
+	trace_iomap_writeback_folio(inode, pos, folio_size(folio));
 
-	if (!iomap_writepage_handle_eof(folio, inode, &end_pos)) {
+	if (!iomap_writeback_handle_eof(folio, inode, &end_pos)) {
 		folio_unlock(folio);
 		return 0;
 	}
@@ -1736,7 +1736,7 @@ iomap_writepages(struct iomap_writepage_ctx *wpc)
 		return -EIO;
 
 	while ((folio = writeback_iter(mapping, wpc->wbc, folio, &error)))
-		error = iomap_writepage_map(wpc, folio);
+		error = iomap_writeback_folio(wpc, folio);
 
 	/*
 	 * If @error is non-zero, it means that we have a situation where some

fs/iomap/trace.h

@@ -79,7 +79,7 @@ DECLARE_EVENT_CLASS(iomap_range_class,
 DEFINE_EVENT(iomap_range_class, name,	\
 	TP_PROTO(struct inode *inode, loff_t off, u64 len),\
 	TP_ARGS(inode, off, len))
-DEFINE_RANGE_EVENT(iomap_writepage);
+DEFINE_RANGE_EVENT(iomap_writeback_folio);
 DEFINE_RANGE_EVENT(iomap_release_folio);
 DEFINE_RANGE_EVENT(iomap_invalidate_folio);
 DEFINE_RANGE_EVENT(iomap_dio_invalidate_fail);