r0 = seccomp$SECCOMP_SET_MODE_FILTER_LISTENER(0x1, 0x8, &(0x7f0000000000)={0x1, &(0x7f00000001c0)=[{0x6, 0x0, 0x0, 0x7ffc0000}]})
ioctl$BTRFS_IOC_GET_FEATURES(r0, 0xc0502100, 0x0)