1 files changed, 10 insertions, 77 deletions

diff --git a/mm/folio-compat.c b/mm/folio-compat.c
index 749555a232a8..45540942d148 100644
--- a/mm/folio-compat.c
+++ b/mm/folio-compat.c
@@ -6,13 +6,9 @@
 
 #include <linux/migrate.h>
 #include <linux/pagemap.h>
+#include <linux/rmap.h>
 #include <linux/swap.h>
-
-struct address_space *page_mapping(struct page *page)
-{
-	return folio_mapping(page_folio(page));
-}
-EXPORT_SYMBOL(page_mapping);
+#include "internal.h"
 
 void unlock_page(struct page *page)
 {
@@ -32,49 +28,15 @@ void wait_on_page_writeback(struct page *page)
 }
 EXPORT_SYMBOL_GPL(wait_on_page_writeback);
 
-void wait_for_stable_page(struct page *page)
-{
-	return folio_wait_stable(page_folio(page));
-}
-EXPORT_SYMBOL_GPL(wait_for_stable_page);
-
-bool page_mapped(struct page *page)
-{
-	return folio_mapped(page_folio(page));
-}
-EXPORT_SYMBOL(page_mapped);
-
 void mark_page_accessed(struct page *page)
 {
 	folio_mark_accessed(page_folio(page));
 }
 EXPORT_SYMBOL(mark_page_accessed);
 
-#ifdef CONFIG_MIGRATION
-int migrate_page_move_mapping(struct address_space *mapping,
-		struct page *newpage, struct page *page, int extra_count)
-{
-	return folio_migrate_mapping(mapping, page_folio(newpage),
-					page_folio(page), extra_count);
-}
-EXPORT_SYMBOL(migrate_page_move_mapping);
-
-void migrate_page_states(struct page *newpage, struct page *page)
+void set_page_writeback(struct page *page)
 {
-	folio_migrate_flags(page_folio(newpage), page_folio(page));
-}
-EXPORT_SYMBOL(migrate_page_states);
-
-void migrate_page_copy(struct page *newpage, struct page *page)
-{
-	folio_migrate_copy(page_folio(newpage), page_folio(page));
-}
-EXPORT_SYMBOL(migrate_page_copy);
-#endif
-
-bool set_page_writeback(struct page *page)
-{
-	return folio_start_writeback(page_folio(page));
+	folio_start_writeback(page_folio(page));
 }
 EXPORT_SYMBOL(set_page_writeback);
 
@@ -84,11 +46,11 @@ bool set_page_dirty(struct page *page)
 }
 EXPORT_SYMBOL(set_page_dirty);
 
-int __set_page_dirty_nobuffers(struct page *page)
+int set_page_dirty_lock(struct page *page)
 {
-	return filemap_dirty_folio(page_mapping(page), page_folio(page));
+	return folio_mark_dirty_lock(page_folio(page));
 }
-EXPORT_SYMBOL(__set_page_dirty_nobuffers);
+EXPORT_SYMBOL(set_page_dirty_lock);
 
 bool clear_page_dirty_for_io(struct page *page)
 {
@@ -103,12 +65,6 @@ bool redirty_page_for_writepage(struct writeback_control *wbc,
 }
 EXPORT_SYMBOL(redirty_page_for_writepage);
 
-void lru_cache_add(struct page *page)
-{
-	folio_add_lru(page_folio(page));
-}
-EXPORT_SYMBOL(lru_cache_add);
-
 int add_to_page_cache_lru(struct page *page, struct address_space *mapping,
 		pgoff_t index, gfp_t gfp)
 {
@@ -118,36 +74,13 @@ EXPORT_SYMBOL(add_to_page_cache_lru);
 
 noinline
 struct page *pagecache_get_page(struct address_space *mapping, pgoff_t index,
-		int fgp_flags, gfp_t gfp)
+		fgf_t fgp_flags, gfp_t gfp)
 {
 	struct folio *folio;
 
 	folio = __filemap_get_folio(mapping, index, fgp_flags, gfp);
-	if ((fgp_flags & FGP_HEAD) || !folio || xa_is_value(folio))
-		return &folio->page;
+	if (IS_ERR(folio))
+		return NULL;
 	return folio_file_page(folio, index);
 }
 EXPORT_SYMBOL(pagecache_get_page);
-
-struct page *grab_cache_page_write_begin(struct address_space *mapping,
-					pgoff_t index, unsigned flags)
-{
-	unsigned fgp_flags = FGP_LOCK | FGP_WRITE | FGP_CREAT | FGP_STABLE;
-
-	if (flags & AOP_FLAG_NOFS)
-		fgp_flags |= FGP_NOFS;
-	return pagecache_get_page(mapping, index, fgp_flags,
-			mapping_gfp_mask(mapping));
-}
-EXPORT_SYMBOL(grab_cache_page_write_begin);
-
-void delete_from_page_cache(struct page *page)
-{
-	return filemap_remove_folio(page_folio(page));
-}
-
-int try_to_release_page(struct page *page, gfp_t gfp)
-{
-	return filemap_release_folio(page_folio(page), gfp);
-}
-EXPORT_SYMBOL(try_to_release_page);