r0 = getpgrp(0x0)
r1 = pidfd_open(r0, 0x0)
r2 = dup(r1)
setns(r2, 0x2020000)
mount$9p_rdma(0x0, &(0x7f00000007c0)='./file0\x00', &(0x7f0000000800), 0x0, &(0x7f0000000840))