+ mpage-use-b_folio-in-do_mpage_readpage.patch added to mm-unstable branch

+ mpage-use-b_folio-in-do_mpage_readpage.patch added to mm-unstable branch

[Andrew Morton]

The patch titled
     Subject: mpage: use b_folio in do_mpage_readpage()
has been added to the -mm mm-unstable branch.  Its filename is
     mpage-use-b_folio-in-do_mpage_readpage.patch

This patch will shortly appear at
     https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/mpage-use-b_folio-in-do_mpage_readpage.patch

This patch will later appear in the mm-unstable branch at
    git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm

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------------------------------------------------------
From: "Matthew Wilcox (Oracle)" <willy@infradead.org>
Subject: mpage: use b_folio in do_mpage_readpage()
Date: Thu, 15 Dec 2022 21:44:02 +0000

Remove this conversion of a folio back to a page.

Link: https://lkml.kernel.org/r/20221215214402.3522366-13-willy@infradead.org
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

 fs/mpage.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/fs/mpage.c~mpage-use-b_folio-in-do_mpage_readpage
+++ a/fs/mpage.c
@@ -198,7 +198,7 @@ static struct bio *do_mpage_readpage(str
 	/*
 	 * Then do more get_blocks calls until we are done with this folio.
 	 */
-	map_bh->b_page = &folio->page;
+	map_bh->b_folio = folio;
 	while (page_block < blocks_per_page) {
 		map_bh->b_state = 0;
 		map_bh->b_size = 0;
_

Patches currently in -mm which might be from willy@infradead.org are

buffer-add-b_folio-as-an-alias-of-b_page.patch
buffer-replace-obvious-uses-of-b_page-with-b_folio.patch
buffer-use-b_folio-in-touch_buffer.patch
buffer-use-b_folio-in-end_buffer_async_read.patch
buffer-use-b_folio-in-end_buffer_async_write.patch
page_io-remove-buffer_head-include.patch
buffer-use-b_folio-in-mark_buffer_dirty.patch
gfs2-replace-obvious-uses-of-b_page-with-b_folio.patch
jbd2-replace-obvious-uses-of-b_page-with-b_folio.patch
nilfs2-replace-obvious-uses-of-b_page-with-b_folio.patch
reiserfs-replace-obvious-uses-of-b_page-with-b_folio.patch
mpage-use-b_folio-in-do_mpage_readpage.patch