r0 = io_uring_setup(0x16d1, &(0x7f0000000a40))
io_uring_register$IORING_REGISTER_FILES_UPDATE(r0, 0x21, &(0x7f0000000bc0)={0x0, 0x0, &(0x7f0000000b80)=[0xffffffffffffffff]}, 0x1)