ioctl$BTRFS_IOC_GET_SUBVOL_ROOTREF(0xffffffffffffffff, 0xd000943d, 0x0)
perf_event_open(&(0x7f0000001d80)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x4307, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffff, 0x0, @perf_bp={0x0, 0x6d7cf708bc06516e}, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x400}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
r0 = openat$sr(0xffffffffffffff9c, &(0x7f00000035c0), 0xe8b02, 0x0)
ioctl$SG_IO(r0, 0x127f, &(0x7f00000003c0)={0xe00, 0x0, 0x0, 0x0, @buffer={0x300, 0x0, 0x0}, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0})
ioctl$SCSI_IOCTL_STOP_UNIT(r0, 0x6)
ioctl$SG_IO(0xffffffffffffffff, 0x2285, &(0x7f00000002c0)={0x53, 0xffffffffffffffff, 0x0, 0x0, @scatter={0x5, 0x0, &(0x7f0000000180)=[{&(0x7f0000000000)=""/17, 0x11}, {&(0x7f0000000040)}, {&(0x7f0000000080)=""/95, 0x5f}, {&(0x7f0000000440)=""/4096, 0x1000}, {&(0x7f0000000100)=""/73, 0x49}]}, 0x0, &(0x7f0000000240)=""/47, 0x5, 0x34, 0x0, &(0x7f0000000280)})