r0 = openat$sr(0xffffffffffffff9c, &(0x7f0000000440), 0x141802, 0x0)
r1 = openat$tcp_congestion(0xffffffffffffff9c, &(0x7f0000000000), 0x1, 0x0)
sendfile(r1, r0, 0x0, 0x6)