On 12/04/2015 10:50 PM, Michael Kerrisk (man-pages) wrote:

On 12/04/2015 02:15 AM, Dave Hansen wrote:

quoted

From: Dave Hansen <dave.hansen-VuQAYsv1563Yd54FQh9/CA@public.gmane.org>

mprotect_key() is just like mprotect, except it also takes a
protection key as an argument.  On systems that do not support
protection keys, it still works, but requires that key=0.
Otherwise it does exactly what mprotect does.

Is there a man page for this API?

Yep.  Patch to man-pages source is attached.  I actually broke it up in
to a few separate pages.  I was planning on submitting these after the
patches themselves go upstream.