PFI_MTYPE
PFI_MTYPE, M_WAITOK);
free(p, PFI_MTYPE);
free(pfi_buffer, PFI_MTYPE);
if ((kif = malloc(sizeof(*kif), PFI_MTYPE, M_NOWAIT|M_ZERO)) == NULL)
free(kif, PFI_MTYPE);
p = malloc(new_max * sizeof(*pfi_buffer), PFI_MTYPE, M_NOWAIT);
free(pfi_buffer, PFI_MTYPE);