Re: [PATCH 2/4] coredump: speedup SIGKILL sending

[Oleg Nesterov]

On 04/06, Lee Revell wrote:
> On Fri, 2006-04-07 at 02:06 +0400, Oleg Nesterov wrote:
> > With this patch a thread group is killed atomically under ->siglock.
> > This is faster because we can use sigaddset() instead of force_sig_info()
> > and this is used in further patches.
> > 
> > Signed-off-by: Oleg Nesterov <oleg@xxxxxxxxxx>
> 
> Won't this cause huge latencies when a process with lots of threads is
> killed?

Yes, irqs are disabled. But this is not worse than 'kill -9 pid', note
that __group_complete_signal() or zap_other_threads() do the same.

Oleg.

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