write$cgroup_type(0xffffffffffffffff, 0x0, 0x0)
ioctl$BTRFS_IOC_START_SYNC(0xffffffffffffffff, 0x80089418, &(0x7f0000000040))
ioctl$BTRFS_IOC_GET_DEV_STATS(0xffffffffffffffff, 0xc4089434, 0x0)
r0 = openat$cdrom(0xffffffffffffff9c, &(0x7f00000004c0), 0x2000, 0x0)
openat$cdrom(0xffffffffffffff9c, &(0x7f0000000500), 0x480000, 0x0)
r1 = openat$cgroup_type(0xffffffffffffffff, 0x0, 0x2, 0x0)
socket(0x22, 0x3, 0x3)
epoll_ctl$EPOLL_CTL_MOD(r0, 0x3, 0xffffffffffffffff, 0x0)
eventfd(0x0)
ioctl$BTRFS_IOC_SCRUB(r0, 0xc400941b, &(0x7f0000000b00)={0x0, 0x1000, 0x9})
openat$cgroup_netprio_ifpriomap(0xffffffffffffffff, &(0x7f0000001340), 0x2, 0x0)
epoll_ctl$EPOLL_CTL_MOD(0xffffffffffffffff, 0x3, r1, 0x0)
r2 = openat$cdrom(0xffffffffffffff9c, &(0x7f0000001400), 0xc801, 0x0)
ioctl$CDROMSUBCHNL(r2, 0x530b, 0x0)