Quoting Cedric Le Goater (clg@xxxxxxxxxx): > Serge E. Hallyn wrote: > > Quoting Cedric Le Goater (clg@xxxxxxxxxx): > >> This patchset is a prototype using the container infrastructure and > >> the swsusp freezer to freeze a group of tasks. > >> > >> 2 files are defined by the freezer subsystem in the container > >> filesystem : > >> > >> * "freezer.freeze" > >> > >> writing 1 will freeze all tasks and 0 unfreeze > >> reading will return the status of the freezer > >> > >> * "freezer.kill" > >> > >> writing <n> will send signal number <n> to all tasks > >> > >> * Usage : > >> > >> # mkdir /containers/freezer > >> # mount -t container -ofreezer freezer /containers/freezer > >> # mkdir /containers/freezer/0 > >> # echo $some_pid > /containers/freezer/0/tasks > > > > I'd like to point out that by composing this with the nsproxy subsystem > > (which I've done and tested), you can > > > > mount -t container -ons,freezer nsproxy /containers/freezer > > > > Then you get a new freezer subsystem automatically for every unshare > > that you do, avoiding the need to to manually do > > > > echo $some_pid > /containers/freezer/0/tasks > > I guess that's true for any subsystem. right ? Sure, but when this goes to lkml I expect there to be plenty of people who don't know about that quite yet, and might come away thinking this is more intrusive to use than it is. thanks, -serge _______________________________________________ Containers mailing list Containers@xxxxxxxxxxxxxxxxxxxxxxxxxx https://lists.linux-foundation.org/mailman/listinfo/containers