patches/old/filemap-convert-page_endio-to-use-a-folio.patch

From: Shaoqin Huang <shaoqin.huang@intel.com>
Subject: mm/filemap.c: convert page_endio() to use a folio
Date: Tue, 9 Aug 2022 10:32:56 +0800

Replace three calls to compound_head() with one.

Link: https://lkml.kernel.org/r/20220809023256.178194-1-shaoqin.huang@intel.com
Signed-off-by: Shaoqin Huang <shaoqin.huang@intel.com>
Cc: Matthew Wilcox <willy@infradead.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

 mm/filemap.c |   16 +++++++++-------
 1 file changed, 9 insertions(+), 7 deletions(-)

--- a/mm/filemap.c~filemap-convert-page_endio-to-use-a-folio
+++ a/mm/filemap.c
@@ -1633,24 +1633,26 @@ EXPORT_SYMBOL(folio_end_writeback);
  */
 void page_endio(struct page *page, bool is_write, int err)
 {
+	struct folio *folio = page_folio(page);
+
 	if (!is_write) {
 		if (!err) {
-			SetPageUptodate(page);
+			folio_mark_uptodate(folio);
 		} else {
-			ClearPageUptodate(page);
-			SetPageError(page);
+			folio_clear_uptodate(folio);
+			folio_set_error(folio);
 		}
-		unlock_page(page);
+		folio_unlock(folio);
 	} else {
 		if (err) {
 			struct address_space *mapping;
 
-			SetPageError(page);
-			mapping = page_mapping(page);
+			folio_set_error(folio);
+			mapping = folio_mapping(folio);
 			if (mapping)
 				mapping_set_error(mapping, err);
 		}
-		end_page_writeback(page);
+		folio_end_writeback(folio);
 	}
 }
 EXPORT_SYMBOL_GPL(page_endio);
_