r0 = perf_event_open(&(0x7f0000001d80)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x5e, 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_config_ext, 0x0, 0x0, 0x0, 0x0, 0x7fff}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
fallocate(r0, 0x2, 0x2, 0x6985)
r1 = socket$netlink(0x10, 0x3, 0x0)
r2 = fcntl$dupfd(r1, 0x0, r1)
sendmsg$nl_generic(r2, &(0x7f0000000000)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000001080)=ANY=[@ANYBLOB="280000001800210c000000ddfeffffff020000000800fe06000000000000008005000000da000000"], 0x28}}, 0x0)
openat2(r2, &(0x7f0000000280)='./file1\x00', &(0x7f0000000340)={0x52ac0, 0x107, 0x14}, 0x18)
dup2(0xffffffffffffffff, 0xffffffffffffffff)
ioctl$BTRFS_IOC_GET_SUBVOL_ROOTREF(0xffffffffffffffff, 0xd000943d, &(0x7f000007d440)={0x9, [], 0x0, "46dacd8396fe92"})
unshare(0x48020200)