r0 = creat(&(0x7f00000003c0)='./cgroup/cgroup.procs\x00', 0x0)
r1 = openat$dir(0xffffffffffffff9c, &(0x7f0000000100)='./cgroup/cgroup.procs\x00', 0x0, 0x0)
sendfile(r0, r1, 0x0, 0xfdef)