On Sun, 27 Dec 2009 04:08:59 +0200 "Kirill A. Shutemov" <kirill@xxxxxxxxxxxxx> wrote: > This patch introduces write-only file "cgroup.event_control" in every > cgroup. > > To register new notification handler you need: > - create an eventfd; > - open a control file to be monitored. Callbacks register_event() and > unregister_event() must be defined for the control file; > - write "<event_fd> <control_fd> <args>" to cgroup.event_control. > Interpretation of args is defined by control file implementation; > > eventfd will be woken up by control file implementation or when the > cgroup is removed. > > To unregister notification handler just close eventfd. > > If you need notification functionality for a control file you have to > implement callbacks register_event() and unregister_event() in the > struct cftype. > > Signed-off-by: Kirill A. Shutemov <kirill@xxxxxxxxxxxxx> Reviewed-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@xxxxxxxxxxxxxx> _______________________________________________ Containers mailing list Containers@xxxxxxxxxxxxxxxxxxxxxxxxxx https://lists.linux-foundation.org/mailman/listinfo/containers
