ocfs2_refcount_cow
ret = ocfs2_refcount_cow(inode, di_bh,
ret = ocfs2_refcount_cow(inode, di_bh, cpos, clusters, UINT_MAX);
return ocfs2_refcount_cow(inode, fe_bh, cpos, 1, cpos+1);
rc = ocfs2_refcount_cow(inode, di_bh, zero_cpos,
int ocfs2_refcount_cow(struct inode *inode,