ioctl$EXT4_IOC_SWAP_BOOT(0xffffffffffffffff, 0x6611)
recvmmsg(r2, &(0x7f0000000000), 0x5ac, 0x0, 0x0)
BUG: memory leak
unreferenced object 0xffff88801ab78b98 (size 40):
  comm "kworker/u4:0", pid 7, jiffies 4294873100 (age 1423.758s)
  hex dump (first 32 bytes):
    51 8f b7 1a 80 88 ff ff 00 00 00 00 00 00 00 00  Q...............
    00 00 00 00 00 00 00 00 7d 01 00 00 01 00 00 00  ........}.......
  backtrace:
    [<00000000e3bcb66c>] ext4_es_alloc_extent fs/ext4/extents_status.c:458 [inline]
    [<00000000e3bcb66c>] __es_insert_extent+0x3a9/0x12f0 fs/ext4/extents_status.c:797
    [<000000000891067c>] __es_remove_extent+0x4a9/0x15d0 fs/ext4/extents_status.c:1353
    [<00000000b0a3800e>] ext4_es_insert_extent+0x230/0xbb0 fs/ext4/extents_status.c:851
    [<0000000006df7439>] ext4_map_blocks+0x8e1/0x1970 fs/ext4/inode.c:706
    [<000000001ac816e6>] ext4_convert_unwritten_extents+0x295/0x580 fs/ext4/extents.c:4810
    [<000000009e84cf9c>] ext4_convert_unwritten_io_end_vec+0x122/0x270 fs/ext4/extents.c:4849
    [<000000003152aee2>] ext4_end_io_end fs/ext4/page-io.c:189 [inline]
    [<000000003152aee2>] ext4_do_flush_completed_IO fs/ext4/page-io.c:262 [inline]
    [<000000003152aee2>] ext4_end_io_rsv_work+0x288/0x5d0 fs/ext4/page-io.c:276
    [<00000000b599e39a>] process_one_work+0x9a9/0x1590 kernel/workqueue.c:2279
    [<00000000dbd9e483>] worker_thread+0x61d/0x1310 kernel/workqueue.c:2425
    [<0000000012bb9434>] kthread+0x38f/0x470 kernel/kthread.c:313
    [<000000009a50591b>] ret_from_fork+0x22/0x30 arch/x86/entry/entry_64.S:299

BUG: leak checking failed