Jan 14 16:40:10 deh-laptop systemd[1]: Reached target Sleep.
Jan 14 16:40:10 deh-laptop systemd[1]: Starting Suspend...
Jan 14 16:40:10 deh-laptop systemd-sleep[1648]: Suspending system...
Jan 14 16:40:31 deh-laptop kernel: PM: Syncing filesystems ... done.
Jan 14 16:40:31 deh-laptop kernel: PM: Preparing system for sleep (mem)
Jan 14 16:40:31 deh-laptop kernel: Freezing user space processes ... (elapsed 0.001 seconds) done.
Jan 14 16:40:31 deh-laptop kernel: Freezing remaining freezable tasks ... 
Jan 14 16:40:31 deh-laptop kernel: Freezing of tasks failed after 20.004 seconds (1 tasks refusing to freeze, wq_busy=0):
Jan 14 16:40:31 deh-laptop kernel: btrfs-cleaner   D ffff88041a01fab8     0   193      2 0x00000000
Jan 14 16:40:31 deh-laptop kernel:  ffff88041a01fab8 ffff88041ae68000 ffff88041cec6040 ffff88041afaee00
Jan 14 16:40:31 deh-laptop kernel:  ffff88041a020000 ffff88042f395700 7fffffffffffffff ffff88041a01fc28
Jan 14 16:40:31 deh-laptop kernel:  ffffffff8158f3b0 ffff88041a01fad0 ffffffff8158eabc 0000000000000000
Jan 14 16:40:31 deh-laptop kernel: Call Trace:
Jan 14 16:40:31 deh-laptop kernel:  [<ffffffff8158f3b0>] ? bit_wait+0x60/0x60
Jan 14 16:40:31 deh-laptop kernel:  [<ffffffff8158eabc>] schedule+0x3c/0x90
Jan 14 16:40:31 deh-laptop kernel:  [<ffffffff81591533>] schedule_timeout+0x1b3/0x240
Jan 14 16:40:31 deh-laptop kernel:  [<ffffffff810e7a97>] ? ktime_get+0x37/0xa0
Jan 14 16:40:31 deh-laptop kernel:  [<ffffffff8158f3b0>] ? bit_wait+0x60/0x60
Jan 14 16:40:31 deh-laptop kernel:  [<ffffffff8158dfa4>] io_schedule_timeout+0xa4/0x110
Jan 14 16:40:31 deh-laptop kernel:  [<ffffffff8158f3cb>] bit_wait_io+0x1b/0x70
Jan 14 16:40:31 deh-laptop kernel:  [<ffffffff8158f19e>] __wait_on_bit_lock+0x4e/0xb0
Jan 14 16:40:31 deh-laptop kernel:  [<ffffffff81163469>] __lock_page+0xb9/0xd0
Jan 14 16:40:31 deh-laptop kernel:  [<ffffffff810b82c0>] ? autoremove_wake_function+0x40/0x40
Jan 14 16:40:31 deh-laptop kernel:  [<ffffffff81163ebe>] pagecache_get_page+0x14e/0x1e0
Jan 14 16:40:31 deh-laptop kernel:  [<ffffffffa021d616>] btrfs_defrag_file+0x356/0xd00 [btrfs]
Jan 14 16:40:31 deh-laptop kernel:  [<ffffffffa01f8930>] btrfs_run_defrag_inodes+0x210/0x350 [btrfs]
Jan 14 16:40:31 deh-laptop kernel:  [<ffffffffa01dcd10>] cleaner_kthread+0xd0/0x200 [btrfs]
Jan 14 16:40:31 deh-laptop kernel:  [<ffffffffa01dcc40>] ? btrfs_destroy_pinned_extent+0xd0/0xd0 [btrfs]
Jan 14 16:40:31 deh-laptop kernel:  [<ffffffff81094c08>] kthread+0xd8/0xf0
Jan 14 16:40:31 deh-laptop kernel:  [<ffffffff81094b30>] ? kthread_worker_fn+0x170/0x170
Jan 14 16:40:31 deh-laptop kernel:  [<ffffffff8159290f>] ret_from_fork+0x3f/0x70
Jan 14 16:40:31 deh-laptop kernel:  [<ffffffff81094b30>] ? kthread_worker_fn+0x170/0x170
Jan 14 16:40:31 deh-laptop kernel: