fd_getfile2
struct file *fp = fd_getfile2(p, fd);
if ((fp = fd_getfile2(p, pfs->pfs_fd)) == NULL)
if ((fp = fd_getfile2(p, pfs->pfs_fd)) == NULL) {
fp = fd_getfile2(p, fd);
if ((fp = fd_getfile2(p, i - 2)) == NULL)
fp = fd_getfile2(pown, pfs->pfs_fd);
fp = fd_getfile2(procp, pfs->pfs_fd);
file_t *fd_getfile2(proc_t *, unsigned);