Comment # 56 on bug 1165780 from Karl Mistelberger

(In reply to asf from comment #53)
> I have removed the btrfsmaintenance from my system, yet after some time its
> back again. And doing scrub in the background, effectively locking the whole
> IO on the desktop. Which became unresponsive. 
> I guess something installs it as a recommended dependency. Is it possible to
> not force this generally useless and quite harmful package on people?

Turn off the timers you don't want to use:

:~ # grep PERIOD /etc/sysconfig/btrfsmaintenance
BTRFS_DEFRAG_PERIOD="weekly"
BTRFS_BALANCE_PERIOD="weekly"
BTRFS_SCRUB_PERIOD="monthly"
BTRFS_TRIM_PERIOD="none"
:~ #