mm: Remove pagevec_remove_exceptionals()

All of its callers now call folio_batch_remove_exceptionals().
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: William Kucharski <william.kucharski@oracle.com>

include/linux/pagevec.h

@@ -27,7 +27,6 @@ struct pagevec {
 
 void __pagevec_release(struct pagevec *pvec);
 void __pagevec_lru_add(struct pagevec *pvec);
-void pagevec_remove_exceptionals(struct pagevec *pvec);
 unsigned pagevec_lookup_range(struct pagevec *pvec,
 			      struct address_space *mapping,
 			      pgoff_t *start, pgoff_t end);
@@ -146,8 +145,5 @@ static inline void folio_batch_release(struct folio_batch *fbatch)
 	pagevec_release((struct pagevec *)fbatch);
 }
 
-static inline void folio_batch_remove_exceptionals(struct folio_batch *fbatch)
-{
-	pagevec_remove_exceptionals((struct pagevec *)fbatch);
-}
+void folio_batch_remove_exceptionals(struct folio_batch *fbatch);
 #endif /* _LINUX_PAGEVEC_H */

mm/swap.c

@@ -1077,24 +1077,24 @@ void __pagevec_lru_add(struct pagevec *pvec)
 }
 
 /**
- * pagevec_remove_exceptionals - pagevec exceptionals pruning
- * @pvec:	The pagevec to prune
+ * folio_batch_remove_exceptionals() - Prune non-folios from a batch.
+ * @fbatch: The batch to prune
  *
- * find_get_entries() fills both pages and XArray value entries (aka
- * exceptional entries) into the pagevec.  This function prunes all
- * exceptionals from @pvec without leaving holes, so that it can be
- * passed on to page-only pagevec operations.
+ * find_get_entries() fills a batch with both folios and shadow/swap/DAX
+ * entries.  This function prunes all the non-folio entries from @fbatch
+ * without leaving holes, so that it can be passed on to folio-only batch
+ * operations.
  */
-void pagevec_remove_exceptionals(struct pagevec *pvec)
+void folio_batch_remove_exceptionals(struct folio_batch *fbatch)
 {
-	int i, j;
+	unsigned int i, j;
 
-	for (i = 0, j = 0; i < pagevec_count(pvec); i++) {
-		struct page *page = pvec->pages[i];
-		if (!xa_is_value(page))
-			pvec->pages[j++] = page;
+	for (i = 0, j = 0; i < folio_batch_count(fbatch); i++) {
+		struct folio *folio = fbatch->folios[i];
+		if (!xa_is_value(folio))
+			fbatch->folios[j++] = folio;
 	}
-	pvec->nr = j;
+	fbatch->nr = j;
 }
 
 /**

mm/truncate.c

@@ -57,7 +57,7 @@ static void clear_shadow_entry(struct address_space *mapping, pgoff_t index,
 /*
  * Unconditionally remove exceptional entries. Usually called from truncate
  * path. Note that the folio_batch may be altered by this function by removing
- * exceptional entries similar to what pagevec_remove_exceptionals does.
+ * exceptional entries similar to what folio_batch_remove_exceptionals() does.
  */
 static void truncate_folio_batch_exceptionals(struct address_space *mapping,
 				struct folio_batch *fbatch, pgoff_t *indices)