r0 = io_uring_setup(0x396d, &(0x7f00000001c0))
io_uring_register$IORING_REGISTER_FILES_UPDATE(r0, 0x6, &(0x7f0000000680)={0x0, 0x0, &(0x7f0000000640)=[0xffffffffffffffff]}, 0x1)