mmap huge page and MAP_SYNC flag support

[valdis.kletnieks at vt.edu]

On Thu, 12 Jul 2018 20:10:36 -0000, David Frank said:

>  Thanks Valdis.Looks like the failure is that I can not write to a 2GB buffer
> (char bf[2GB size]).Where do I get the distro include file?

>From the same exact place you got the distro kernel from. (I'm guessing
it's a distro kernel from the -generic in the uname -r).  If you built it
yourself from a Linus source git/tarball, 'make headers_install' will do it, but
note that if the rest of the distro install still thinks you have a distro kernel-headers
installed, the package management system may whine....
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