udf: don't bother with full-page write optimisations in adinicb case

... it would get converted to regular if such had been attempted

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Jan Kara <jack@suse.cz>

1 files changed, 15 insertions, 1 deletions

diff --git a/fs/udf/file.c b/fs/udf/file.c
index 254bc02d7e2c..e855bf8d74b4 100644
--- a/fs/udf/file.c
+++ b/fs/udf/file.c
@@ -105,11 +105,25 @@ static ssize_t udf_adinicb_direct_IO(struct kiocb *iocb, struct iov_iter *iter)
         return 0;
 }
 
+static int udf_adinicb_write_end(struct file *file, struct address_space *mapping,
+                                 loff_t pos, unsigned len, unsigned copied,
+                                 struct page *page, void *fsdata)
+{
+        struct inode *inode = page->mapping->host;
+        loff_t last_pos = pos + copied;
+        if (last_pos > inode->i_size)
+                i_size_write(inode, last_pos);
+        set_page_dirty(page);
+        unlock_page(page);
+        put_page(page);
+        return copied;
+}
+
 const struct address_space_operations udf_adinicb_aops = {
         .readpage       = udf_adinicb_readpage,
         .writepage      = udf_adinicb_writepage,
         .write_begin    = udf_adinicb_write_begin,
-        .write_end      = simple_write_end,
+        .write_end      = udf_adinicb_write_end,
         .direct_IO      = udf_adinicb_direct_IO,
 };