1 files changed, 7 insertions, 26 deletions

diff --git a/include/linux/pagemap.h b/include/linux/pagemap.h
index 2d72bd89bf7b..483a191bb4df 100644
--- a/include/linux/pagemap.h
+++ b/include/linux/pagemap.h
@@ -434,7 +434,6 @@ static inline void filemap_nr_thps_dec(struct address_space *mapping)
 #endif
 }
 
-struct address_space *page_mapping(struct page *);
 struct address_space *folio_mapping(struct folio *);
 struct address_space *swapcache_mapping(struct folio *);
 
@@ -800,7 +799,7 @@ static inline struct page *grab_cache_page_nowait(struct address_space *mapping,
 			mapping_gfp_mask(mapping));
 }
 
-#define swapcache_index(folio)	__page_file_index(&(folio)->page)
+extern pgoff_t __folio_swap_cache_index(struct folio *folio);
 
 /**
  * folio_index - File index of a folio.
@@ -815,9 +814,9 @@ static inline struct page *grab_cache_page_nowait(struct address_space *mapping,
  */
 static inline pgoff_t folio_index(struct folio *folio)
 {
-        if (unlikely(folio_test_swapcache(folio)))
-                return swapcache_index(folio);
-        return folio->index;
+	if (unlikely(folio_test_swapcache(folio)))
+		return __folio_swap_cache_index(folio);
+	return folio->index;
 }
 
 /**
@@ -940,11 +939,6 @@ static inline loff_t page_offset(struct page *page)
 	return ((loff_t)page->index) << PAGE_SHIFT;
 }
 
-static inline loff_t page_file_offset(struct page *page)
-{
-	return ((loff_t)page_index(page)) << PAGE_SHIFT;
-}
-
 /**
  * folio_pos - Returns the byte position of this folio in its file.
  * @folio: The folio.
@@ -954,18 +948,6 @@ static inline loff_t folio_pos(struct folio *folio)
 	return page_offset(&folio->page);
 }
 
-/**
- * folio_file_pos - Returns the byte position of this folio in its file.
- * @folio: The folio.
- *
- * This differs from folio_pos() for folios which belong to a swap file.
- * NFS is the only filesystem today which needs to use folio_file_pos().
- */
-static inline loff_t folio_file_pos(struct folio *folio)
-{
-	return page_file_offset(&folio->page);
-}
-
 /*
  * Get the offset in PAGE_SIZE (even for hugetlb folios).
  */
@@ -1319,8 +1301,7 @@ void page_cache_sync_readahead(struct address_space *mapping,
  * @mapping: address_space which holds the pagecache and I/O vectors
  * @ra: file_ra_state which holds the readahead state
  * @file: Used by the filesystem for authentication.
- * @folio: The folio at @index which triggered the readahead call.
- * @index: Index of first page to be read.
+ * @folio: The folio which triggered the readahead call.
  * @req_count: Total number of pages being read by the caller.
  *
  * page_cache_async_readahead() should be called when a page is used which
@@ -1331,9 +1312,9 @@ void page_cache_sync_readahead(struct address_space *mapping,
 static inline
 void page_cache_async_readahead(struct address_space *mapping,
 		struct file_ra_state *ra, struct file *file,
-		struct folio *folio, pgoff_t index, unsigned long req_count)
+		struct folio *folio, unsigned long req_count)
 {
-	DEFINE_READAHEAD(ractl, file, ra, mapping, index);
+	DEFINE_READAHEAD(ractl, file, ra, mapping, folio->index);
 	page_cache_async_ra(&ractl, folio, req_count);
 }