r0 = openat$tcp_congestion(0xffffffffffffff9c, &(0x7f0000000180), 0x1, 0x0)
pwritev(r0, &(0x7f00000001c0)=[{&(0x7f0000000640)='F', 0x20000641}], 0x1, 0xd32, 0x0)