/* The caller is responsible for passing down meta_ac if we'll need it.  */
int ocfs2_mark_extent_written(struct inode *inode, struct ocfs2_extent_tree *et, handle_t *handle, u32 cpos, u32 len, u32 phys, struct ocfs2_alloc_context *meta_ac, struct ocfs2_cached_dealloc_ctxt *dealloc)
/* The caller is responsible for passing down meta_ac if we'll need it.  */
int ocfs2_mark_extent_written(struct inode *inode, struct ocfs2_extent_tree *et, handle_t *handle, u32 cpos, u32 len, u32 phys, struct ocfs2_alloc_context *meta_ac, struct ocfs2_cached_dealloc_ctxt *dealloc)
{
	int ret;
	mlog(0, "Inode %lu cpos %u, len %u, phys clusters %u\n",
	     inode->i_ino, cpos, len, phys);
	if (!ocfs2_writes_unwritten_extents(OCFS2_SB(inode->i_sb))) {
		ocfs2_error(inode->i_sb, "Inode %llu has unwritten extents "
			    "that are being written to, but the feature bit "
			    "is not set in the super block.",
			    (unsigned long long)OCFS2_I(inode)->ip_blkno);
		ret = -EROFS;
		goto out;
	}
	ocfs2_et_extent_map_truncate(et, 0);
	ret = ocfs2_change_extent_flag(handle, et, cpos,
				       len, phys, meta_ac, dealloc,
				       0, OCFS2_EXT_UNWRITTEN);
	if (ret)
		mlog_errno(ret);
out:
	return ret;
}