[dm-devel] dm-bufio cache patches

[Mikulas Patocka]

Hi

I created dm-bufio patchset that keep some amount of cache indefinitely, 
regardless of the timeout (the default is to keep 1/500 of total memory 
indefinitely).

I uploaded it here: 
http://people.redhat.com/~mpatocka/patches/kernel/dm-bufio-cache/

Try it, if it helps, we can backport it.

If you think that we should use different default values (for example, 
increase the max_age value), say it.

Mikulas