[LTP] [PATCH v2] readahead02: estimate max readahead size

[Cyril Hrubis]

Hi!
Tested-by: Cyril Hrubis <chrubis@suse.cz>
Acked-by: Cyril Hrubis <chrubis@suse.cz>

We should also note in the patch changelog that this fixes the test on
Btrfs, where it wasn't working previously since there is no
/sys/dev/block/$major:$minor/ for the anonymous block devices that are
used internaly for subvolumes.

-- 
Cyril Hrubis
chrubis@suse.cz