On Thu, 9 Jul 2015 14:46:35 -0400 Eric B Munson <emunson@xxxxxxxxxx> wrote: > > One other question...if I call mlock2(MLOCK_ONFAULT) on a range that > > already has resident pages, I believe that those pages will not be locked > > until they are reclaimed and faulted back in again, right? I suspect that > > could be surprising to users. > > That is the case. I am looking into what it would take to find only the > present pages in a range and lock them, if that is the behavior that is > preferred I can include it in the updated series. For whatever my $0.02 is worth, I think that should be done. Otherwise the mlock2() interface is essentially nondeterministic; you'll never really know if a specific page is locked or not. Thanks, jon