On 04/06, Eric W. Biederman wrote: > > Thinking about it I do agree with Linus that two lists sounds like the > right solution because it ensures we always have O(1) time when > waiting for a zombie.
Well. I bet this will be painful, and will uglify the code even more. do_wait() has to iterate over 2 lists, __ptrace_unlink() should check ->exit_state, etc... > I'd like to place the list head for the zombie > list in the signal_struct and not in the task_struct so our > performance continues to be O(1) when we have a threaded process. Sure. It would be nice to move ->children into signal_struct at first. Except this change breaks (in fact fixes) ->pdeath_signal behaviour. > The big benefit of the zombie list over your proposed list reordering > is that waitpid can return immediately when we don't have zombies to > wait for, but we have lots of children. TASK_TRACED/TASK_STOPPED ? Oleg. - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
