Merge tag 'folio-6.0' of git://git.infradead.org/users/willy/pagecache

[platform/kernel/linux-starfive.git] / include / linux / buffer_head.h

diff --git a/include/linux/buffer_head.h b/include/linux/buffer_head.h
index bb68eb6..307445d 100644 (file)
--- a/include/linux/buffer_head.h
+++ b/include/linux/buffer_head.h
@@ -259,14 +259,16 @@ static inline vm_fault_t block_page_mkwrite_return(int err)
 }
 sector_t generic_block_bmap(struct address_space *, sector_t, get_block_t *);
 int block_truncate_page(struct address_space *, loff_t, get_block_t *);
-int nobh_write_begin(struct address_space *, loff_t, unsigned len,
-                               struct page **, void **, get_block_t*);
-int nobh_write_end(struct file *, struct address_space *,
-                               loff_t, unsigned, unsigned,
-                               struct page *, void *);
-int nobh_truncate_page(struct address_space *, loff_t, get_block_t *);
-int nobh_writepage(struct page *page, get_block_t *get_block,
-                        struct writeback_control *wbc);
+
+#ifdef CONFIG_MIGRATION
+extern int buffer_migrate_folio(struct address_space *,
+               struct folio *dst, struct folio *src, enum migrate_mode);
+extern int buffer_migrate_folio_norefs(struct address_space *,
+               struct folio *dst, struct folio *src, enum migrate_mode);
+#else
+#define buffer_migrate_folio NULL
+#define buffer_migrate_folio_norefs NULL
+#endif
 
 void buffer_init(void);