r0 = openat(0xffffffffffffff9c, &(0x7f0000000040)='./cgroup/cgroup.procs\x00', 0x0, 0x0)
close(r0)
openat(0xffffffffffffff9c, &(0x7f0000000100)='./cgroup/pids.max\x00', 0x2, 0x0)
sendfile(r0, r0, 0x0, 0x3fc)