On Thu 02-05-19 09:00:31, Michal Hocko wrote:

On Wed 01-05-19 15:12:32, Barret Rhoden wrote:
[...]

quoted

A more elegant solution may be to avoid registering with sysfs during early
boot, or something else entirely.  But I figured I'd ask for help at this
point.  =)

Thanks for the report and an excellent analysis! This is really helpful.
I will think about this some more but I am traveling this week. It seems
really awkward to register a sysfs file for an empty range. That looks
like a bug to me.

I am sorry, but I didn't get to this for a long time and I am still
busy. The patch has been dropped from the mm tree (thus linux-next). I
hope I can revisit this or somebody else will take over and finish this
work. This is much more trickier than I anticipated unfortunately.

-- 
Michal Hocko
SUSE Labs