[Devel] Re: [PATCH] pidns: Fix wait for zombies to be reaped in zap_pid_ns_processes

[Sukadev Bhattiprolu]

Eric W. Biederman [ebiederm at xmission.com] wrote:
| Louis Rilling <Louis.Rilling at kerlabs.com> writes:
| 
| > This patch looks like it is working (only a small RCU issue shown below). I
| > couldn't try it yet though.
| 
| It certainly worked in my testing. 
| 
| > I must admit that I am using a similar back-off solution in Kerrighed (not to
| > solve the issue of proc_flush_task(), but for one of the reasons that you stated
| > above: we want to be sure that all tasks of the namespace have been reaped), but
| > I considered it too ugly to propose it for Linux ;)
| 
| Well sometimes you have to go with what works.
| 
| Thanks for spotting those issue with my patch.  I guess it needs one more
| pass before I can call it done.

Eric,

Do you plan to resend this patch ? 

FYI, we ran into the problem that Louis Rilling reported when testing with
the checkpoint/restart code and this patch fixes the problem (after a minor
tweak to the C/R code).

Thanks,

Sukadev
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