Fighting kio_http_cache_cleaner

[Christoph Burgmer <christoph.burgmer@stud.uni-karlsruhe.de>]

For some time now kio_http_cache_cleaner has been making me mad by generating 
huge io in the background running on the least favorable ioniceness (should I 
say iobadness) regardless of other heavy io jobs, or the laptop being on 
batteries.

iotop gives me the following:

Total DISK READ: 656.84 K/s | Total DISK WRITE: 0.00 B/s
  TID  PRIO  USER     DISK READ  DISK WRITE  SWAPIN     IO>    COMMAND
16484 be/4 christop  656.84 K/s    0.00 B/s  0.00 % 98.51 % 
kio_http_cache_cleaner
    1 be/4 root        0.00 B/s    0.00 B/s  0.00 %  0.00 % init [2]
    2 be/3 root        0.00 B/s    0.00 B/s  0.00 %  0.00 % [kthreadd]
    3 rt/3 root        0.00 B/s    0.00 B/s  0.00 %  0.00 % [migration/0]
    4 be/3 root        0.00 B/s    0.00 B/s  0.00 %  0.00 % [ksoftirqd/0]

My cache size is 51200 (I guess KB) which should be KDE's default.
Do others experience the same problem? Any hints on what to do about it?

"killall kio_http_cache_cleaner" is my little friend and helper right now. I 
can't see any artifacts from not running the process every once and a while, 
so I guess there is no need for my hard-drive being bogged down that often.

-Christoph