linux-ext4 - [PATCH 1/6] ntfs3: refactor ntfs

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Date:   Mon, 13 Jun 2022 07:37:10 +0200
From:   Christoph Hellwig <hch@....de>
To:     Matthew Wilcox <willy@...radead.org>, Jan Kara <jack@...e.com>,
        Dave Kleikamp <shaggy@...nel.org>,
        Konstantin Komarov <almaz.alexandrovich@...agon-software.com>
Cc:     linux-ext4@...r.kernel.org, linux-fsdevel@...r.kernel.org,
        linux-kernel@...r.kernel.org, jfs-discussion@...ts.sourceforge.net,
        ntfs3@...ts.linux.dev
Subject: [PATCH 1/6] ntfs3: refactor ntfs_writepages

Handle the resident case with an explicit generic_writepages call instead
of using the obscure overload that makes mpage_writepages with a NULL
get_block do the same thing.

Signed-off-by: Christoph Hellwig <hch@....de>
---
 fs/ntfs3/inode.c | 8 +++-----
 1 file changed, 3 insertions(+), 5 deletions(-)

diff --git a/fs/ntfs3/inode.c b/fs/ntfs3/inode.c
index be4ebdd8048b0..28c09c25b823d 100644
--- a/fs/ntfs3/inode.c
+++ b/fs/ntfs3/inode.c
@@ -851,12 +851,10 @@ static int ntfs_writepage(struct page *page, struct writeback_control *wbc)
 static int ntfs_writepages(struct address_space *mapping,
 			   struct writeback_control *wbc)
 {
-	struct inode *inode = mapping->host;
-	struct ntfs_inode *ni = ntfs_i(inode);
 	/* Redirect call to 'ntfs_writepage' for resident files. */
-	get_block_t *get_block = is_resident(ni) ? NULL : &ntfs_get_block;
-
-	return mpage_writepages(mapping, wbc, get_block);
+	if (is_resident(ntfs_i(mapping->host)))
+		return generic_writepages(mapping, wbc);
+	return mpage_writepages(mapping, wbc, ntfs_get_block);
 }
 
 static int ntfs_get_block_write_begin(struct inode *inode, sector_t vbn,
-- 
2.30.2