linux-ext4 - [PATCH 4/9] hfs: remove ->writepage

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Date:   Sun, 13 Nov 2022 17:28:57 +0100
From:   Christoph Hellwig <hch@....de>
To:     Namjae Jeon <linkinjeon@...nel.org>,
        Sungjong Seo <sj1557.seo@...sung.com>,
        Jan Kara <jack@...e.com>,
        OGAWA Hirofumi <hirofumi@...l.parknet.co.jp>,
        Mikulas Patocka <mikulas@...ax.karlin.mff.cuni.cz>,
        Dave Kleikamp <shaggy@...nel.org>,
        Bob Copeland <me@...copeland.com>
Cc:     linux-fsdevel@...r.kernel.org, linux-ext4@...r.kernel.org,
        jfs-discussion@...ts.sourceforge.net,
        linux-karma-devel@...ts.sourceforge.net, linux-mm@...ck.org
Subject: [PATCH 4/9] hfs: remove ->writepage

->writepage is a very inefficient method to write back data, and only
used through write_cache_pages or a a fallback when no ->migrate_folio
method is present.

Set ->migrate_folio to the generic buffer_head based helper, and stop
wiring up ->writepage for hfs_aops.

Signed-off-by: Christoph Hellwig <hch@....de>
---
 fs/hfs/inode.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/fs/hfs/inode.c b/fs/hfs/inode.c
index c4526f16355d5..16466a5e88b44 100644
--- a/fs/hfs/inode.c
+++ b/fs/hfs/inode.c
@@ -173,12 +173,12 @@ const struct address_space_operations hfs_aops = {
 	.dirty_folio	= block_dirty_folio,
 	.invalidate_folio = block_invalidate_folio,
 	.read_folio	= hfs_read_folio,
-	.writepage	= hfs_writepage,
 	.write_begin	= hfs_write_begin,
 	.write_end	= generic_write_end,
 	.bmap		= hfs_bmap,
 	.direct_IO	= hfs_direct_IO,
 	.writepages	= hfs_writepages,
+	.migrate_folio	= buffer_migrate_folio,
 };
 
 /*
-- 
2.30.2