On Mon, Nov 19, 2018 at 07:32:33AM -0800, Andy Lutomirski wrote: > On Mon, Nov 19, 2018 at 2:33 AM Christian Brauner <christian@xxxxxxxxxx> wrote: > > > > With this patch an open() call on /proc/<pid> will give userspace a handle > > to struct pid of the process associated with /proc/<pid>. This allows to > > maintain a stable handle on a process. > > I have been discussing various approaches extensively during technical > > conferences this year culminating in a long argument with Eric at Linux > > Plumbers. The general consensus was that having a handle on a process > > should be something that is very simple and easy to maintain with the > > option of being extensible via a more advanced api if the need arises. I > > believe that this patch is the most simple, dumb, and therefore > > maintainable solution. > > How does the mechanism you're adding here differ from proc_pid()? I'm sorry, I am missing the context around proc_pid()?. Are you talking about the the proc_pid() function in "internal.h"? What exactly is the proc_pid() mechanism?
