UPDATE: block / row - tweak some default values
- "hardcoded values researched by the community"
- taken from Mackay kernel by @kasperhettinga
UPDATE: random / entropy - use nonblocking for all
- taken from Mackay kernel by @kasperhettinga
UPDATE: sched / LOAD_FREQ - (4*HZ+61) avoids loadavg Moire
- http://ripke.com/loadavg/moire
- taken from Mackay kernel by @kasperhettinga