Quoting Eric W. Biederman (ebiederm@xxxxxxxxxxxx): > Dave Hansen <hansendc@xxxxxxxxxx> writes: > > > On Mon, 2007-03-26 at 11:12 -0600, Eric W. Biederman wrote: > >> > >> > In (at least one version of) Dave's patches, the /proc your pidns is > >> > automatically used when you use /proc. In that case a /proc should > >> > just go away when the last task goes away, since noone else can use > >> > that /proc. > >> > >> Unless I am rather confused that does extremely nasty things to > >> the VFS dentry cache. Because a dentry can point at one process > >> one minute and another process the next. It is doable but only > >> at the cost of decreased performance. > > > > By using, I think Serge meant "mounting". We're going to statically > > assign a /proc mount to a namespace when the mount is created, not fudge > > it around at runtime. > > I think Serge misread that. He specifically talked about not having > to remount /proc. Therefore I believe he understood it did something > at runtime. Yes, looks like I misread the code. I thought a new sb was created automatically if needed. Going back I see this is only done at mount time. > > How does this thrash the dcache? > > Fudging at runtime is horrible. > > Caching the pid_mnt in the pid_namespace appears fine, as long as > we get the reference counting correct. > > Eric _______________________________________________ Containers mailing list Containers@xxxxxxxxxxxxxxxxxxxxxxxxxx https://lists.linux-foundation.org/mailman/listinfo/containers
