On Thu, 4 May 2000, Linus Torvalds wrote:
>
>
> On Thu, 4 May 2000, Alexander Viro wrote:
> >
> > a) think what we really need to see for zombies. E.g. if we consider
> > PF_EXITING as "dead" for maps, mem, fd/*, stat*, cmdline and environ -
> > fine, we can get out with that.
>
> I'd prefer an approach something like this:
>
> lock_task(current);
> fs = current->fs;
> mm = current->mm;
> files = current->files;
> signal = current->signal;
> current->fs = NULL;
> current->mm = NULL;
> current->files = NULL;
> current->signal = NULL;
> unlock_task(current);
That has an unpleasant side effect: you won't see zombies in ps output.
At all. If that's OK - no problems, we can do it much simpler and protect
only the moment of setting PF_EXITING. If it is not...
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