ioctl$BTRFS_IOC_GET_SUBVOL_ROOTREF(0xffffffffffffffff, 0xd000943d, 0x0) perf_event_open(&(0x7f0000001d80)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x4307, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = openat$sr(0xffffffffffffff9c, &(0x7f00000035c0), 0xe8b02, 0x0) ioctl$SG_IO(r0, 0x2285, &(0x7f0000000180)={0x0, 0xfffffffffffffffe, 0xc6, 0xda, @buffer={0x0, 0x8d, &(0x7f0000000200)=""/141}, &(0x7f0000001980)="99be04904968fd76dff1a41270b30e59a61654b2f4025a27b3c36f1f85eb16d5424d9d5b374a68ebe1d7139e3cf812c8b626a043aa55d596b9b506df5fd26e7f633683d762c60baaf0d06c6f26a0b717c563a357c6ed30b0ef477b8c46ea22f4e64eeaf85ae917c615b0be8b0f7a632e9f89b38a5f8b28235e4e303dd3a53fef7ddc923e7fb353419f8d72995113173d4c055a1cb8a50ae03cc34d238ca4dbad95731ce1b9f9683a5ba5154a3646d528684228ccce133c9962fb394513ca50caab7d82583885", &(0x7f0000001e00)=""/4096, 0x534, 0x10, 0xffffffffffffffff, 0x0}) ioctl$SG_IO(r0, 0x127f, &(0x7f00000003c0)={0xe00, 0x0, 0x0, 0x0, @buffer={0x300, 0x0, 0x0}, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0})