To remind, this doesn't depend on other changes in -mm. It is not clear to me if I addressed Eric's objections or not, but let me send V2 (I reordered these patches).
I updated the changelog/comments in 2/2, hopefully now it is more clear that this patch only tries to explain how the current code works, and why do we need to wait for nr_hashed==init_pids from the kernel perspective. Otherwise it is basically the same patch, except I added another note about sys_wait4(). And, Eric, let me repeat. In any case we do not need for EXIT_DEAD tasks. They are stealth. In fact this state should die, it only complicates do_wait/reparenting/etc but we can't avoid it right now (mostly because of the locking in wait paths). IOW. If we could somehow detect that this pid_ns has only EXIT_DEAD tasks we could return and user-space won't notice this change. No, it is not that I think we should do this, but this should be documented. Please review. Oleg. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/