On Tue, Mar 19, 2019 at 11:02 AM Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> wrote: > > On Tue, 19 Mar 2019 11:07:22 +0800 Peter Xu <peterx@xxxxxxxxxx> wrote: > > > Add a global sysctl knob "vm.unprivileged_userfaultfd" to control > > whether userfaultfd is allowed by unprivileged users. When this is > > set to zero, only privileged users (root user, or users with the > > CAP_SYS_PTRACE capability) will be able to use the userfaultfd > > syscalls. > > Please send along a full description of why you believe Linux needs > this feature, for me to add to the changelog. What is the benefit to > our users? How will it be used? > > etcetera. As it was presented I'm seeing no justification for adding > the patch! Was there a v3 of this patch? I'd still really like to have this knob added. :) Thanks! -- Kees Cook
