Re: [PATCH] pid_ns: zap_pid_ns_processes: use SEND_SIG_NOINFO insteadof force_sig()

From: Linus Torvalds
Date: Thu Mar 04 2010 - 11:06:39 EST

On Wed, 3 Mar 2010, Oleg Nesterov wrote:
> zap_pid_ns_processes() uses force_sig(SIGKILL) to ensure SIGKILL
> will be delivered to sub-namespace inits as well. This is correct,
> but we are going to change force_sig_info() semantics.
> See
> We can use send_sig_info(SEND_SIG_NOINFO) instead, since
> 614c517d7c00af1b26ded20646b329397d6f51a1 SEND_SIG_NOINFO means
> "from user" and therefore send_signal() will get the correct
> from_ancestor_ns = T flag.
> Signed-off-by: Oleg Nesterov <oleg@xxxxxxxxxx>

Acked-by: Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx>

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