[erlang-questions] Support for polling HDD in linux 4.4

[Mikael Pettersson]

Max Lapshin writes:
 > There is a news on LWN: http://lwn.net/Articles/663879/
 > and Ubuntu 16.04 with kernel that seems to support it.
 > 
 > We in erlyvideo have to maintain our own "thread pool" inside erlang in top
 > of erlang thread pool because it is very important to have different pools
 > for different devices.
 > 
 > All this is very complicated and could be more elegant if disk had async
 > API.
 > 
 > 
 > Have anyone looked at this polling API?  Maybe it is time to implement it
 > in erlang?

I didn't see much of an "API" there, only a sysfs file to toggle,
and that's not something we should (and often cannot) do from ERTS.