ioctl$BTRFS_IOC_GET_SUBVOL_INFO(r2, 0x81f8943c, &(0x7f0000002500))
r6 = socket$nl_sock_diag(0x10, 0x3, 0x4)
ioctl$AUTOFS_DEV_IOCTL_OPENMOUNT(0xffffffffffffffff, 0xc0189374, &(0x7f0000002700)={{0x1, 0x1, 0x18, r6, {0x1}}, './file0\x00'})
BUG: memory leak
unreferenced object 0x00041640 (size 48):
  comm "swapper/0", pid 0, jiffies 4294667296
  hex dump (first 32 bytes on cpu 0):
    14 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
  backtrace (crc 0):
    pcpu_alloc_noprof+0x777/0x11b0
    setup_per_cpu_pageset+0x158/0x1f0
    start_kernel+0x34c/0x540
    x86_64_start_reservations+0x18/0x30
    x86_64_start_kernel+0xcb/0xe0
    common_startup_64+0x12c/0x138

BUG: leak checking failed