linux-kernel - [PATCH 06/14] bfs: Remove writepage implementation

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Message-Id: <20231215200245.748418-7-willy@infradead.org>
Date: Fri, 15 Dec 2023 20:02:37 +0000
From: "Matthew Wilcox (Oracle)" <willy@...radead.org>
To: Andrew Morton <akpm@...ux-foundation.org>
Cc: "Matthew Wilcox (Oracle)" <willy@...radead.org>,
	Christoph Hellwig <hch@....de>,
	linux-fsdevel@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	linux-block@...r.kernel.org
Subject: [PATCH 06/14] bfs: Remove writepage implementation

If the filesystem implements migrate_folio and writepages, there is
no need for a writepage implementation.

Signed-off-by: Matthew Wilcox (Oracle) <willy@...radead.org>
---
 fs/bfs/file.c | 9 ++++++---
 1 file changed, 6 insertions(+), 3 deletions(-)

diff --git a/fs/bfs/file.c b/fs/bfs/file.c
index adc2230079c6..a778411574a9 100644
--- a/fs/bfs/file.c
+++ b/fs/bfs/file.c
@@ -11,6 +11,7 @@
  */
 
 #include <linux/fs.h>
+#include <linux/mpage.h>
 #include <linux/buffer_head.h>
 #include "bfs.h"
 
@@ -150,9 +151,10 @@ static int bfs_get_block(struct inode *inode, sector_t block,
 	return err;
 }
 
-static int bfs_writepage(struct page *page, struct writeback_control *wbc)
+static int bfs_writepages(struct address_space *mapping,
+		struct writeback_control *wbc)
 {
-	return block_write_full_page(page, bfs_get_block, wbc);
+	return mpage_writepages(mapping, wbc, bfs_get_block);
 }
 
 static int bfs_read_folio(struct file *file, struct folio *folio)
@@ -190,9 +192,10 @@ const struct address_space_operations bfs_aops = {
 	.dirty_folio	= block_dirty_folio,
 	.invalidate_folio = block_invalidate_folio,
 	.read_folio	= bfs_read_folio,
-	.writepage	= bfs_writepage,
+	.writepages	= bfs_writepages,
 	.write_begin	= bfs_write_begin,
 	.write_end	= generic_write_end,
+	.migrate_folio	= buffer_migrate_folio,
 	.bmap		= bfs_bmap,
 };
 
-- 
2.42.0