r0 = openat$tcp_congestion(0xffffffffffffff9c, &(0x7f0000000000), 0x1, 0x0)
pwritev2(r0, &(0x7f0000000140)=[{&(0x7f0000000080)="f2971958dc90067300", 0x9}], 0x1, 0x0, 0x0, 0x0)