[PATCH 2/6] ntfs3: stop using generic_writepages

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Open code the resident inode handling in ntfs_writepages by directly
using write_cache_pages to prepare removing the ->writepage handler
in ntfs3.

Signed-off-by: Christoph Hellwig <hch@xxxxxx>
---
 fs/ntfs3/inode.c | 21 +++++++++++++++++++--
 1 file changed, 19 insertions(+), 2 deletions(-)

diff --git a/fs/ntfs3/inode.c b/fs/ntfs3/inode.c
index 20b953871574b8..b6dad2da59501b 100644
--- a/fs/ntfs3/inode.c
+++ b/fs/ntfs3/inode.c
@@ -852,12 +852,29 @@ static int ntfs_writepage(struct page *page, struct writeback_control *wbc)
 	return block_write_full_page(page, ntfs_get_block, wbc);
 }
 
+static int ntfs_resident_writepage(struct page *page,
+		struct writeback_control *wbc, void *data)
+{
+	struct address_space *mapping = data;
+	struct ntfs_inode *ni = ntfs_i(mapping->host);
+	int ret;
+
+	ni_lock(ni);
+	ret = attr_data_write_resident(ni, page);
+	ni_unlock(ni);
+
+	if (ret != E_NTFS_NONRESIDENT)
+		unlock_page(page);
+	mapping_set_error(mapping, ret);
+	return ret;
+}
+
 static int ntfs_writepages(struct address_space *mapping,
 			   struct writeback_control *wbc)
 {
-	/* Redirect call to 'ntfs_writepage' for resident files. */
 	if (is_resident(ntfs_i(mapping->host)))
-		return generic_writepages(mapping, wbc);
+		return write_cache_pages(mapping, wbc, ntfs_resident_writepage,
+					 mapping);
 	return mpage_writepages(mapping, wbc, ntfs_get_block);
 }
 
-- 
2.35.1




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