r0 = openat(0xffffffffffffff9c, &(0x7f0000000000)='./file1\x00', 0xc02c2, 0x0)
r1 = openat$vcs(0xffffffffffffff9c, &(0x7f0000000080), 0x848801, 0x0)
mount$9p_fd(0x0, &(0x7f0000000500)='./file1\x00', &(0x7f0000000280), 0x0, &(0x7f0000000680)={'trans=fd,', {'rfdno', 0x3d, r0}, 0x2c, {'wfdno', 0x3d, r1}})