nilfs2_direct_IO(): remove dead code

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

diff --git a/fs/nilfs2/inode.c b/fs/nilfs2/inode.c
index 258d9fe2521a52f1a6d96d310d90bd0890434634..4a73d6dffabf696198f9ce892b2f93d7008e3266 100644 (file)
--- a/fs/nilfs2/inode.c
+++ b/fs/nilfs2/inode.c
@@ -307,31 +307,13 @@ static int nilfs_write_end(struct file *file, struct address_space *mapping,
 static ssize_t
 nilfs_direct_IO(struct kiocb *iocb, struct iov_iter *iter, loff_t offset)
 {
-       struct file *file = iocb->ki_filp;
-       struct address_space *mapping = file->f_mapping;
-       struct inode *inode = file->f_mapping->host;
-       size_t count = iov_iter_count(iter);
-       ssize_t size;
+       struct inode *inode = file_inode(iocb->ki_filp);
 
        if (iov_iter_rw(iter) == WRITE)
                return 0;
 
        /* Needs synchronization with the cleaner */
-       size = blockdev_direct_IO(iocb, inode, iter, offset, nilfs_get_block);
-
-       /*
-        * In case of error extending write may have instantiated a few
-        * blocks outside i_size. Trim these off again.
-        */
-       if (unlikely(iov_iter_rw(iter) == WRITE && size < 0)) {
-               loff_t isize = i_size_read(inode);
-               loff_t end = offset + count;
-
-               if (end > isize)
-                       nilfs_write_failed(mapping, end);
-       }
-
-       return size;
+       return blockdev_direct_IO(iocb, inode, iter, offset, nilfs_get_block);
 }
 
 const struct address_space_operations nilfs_aops = {