From: Oleg Nesterov <oleg@redhat.com>
To: Roland McGrath <roland@redhat.com>
Cc: Andrew Morton <akpm@linux-foundation.org>,
Sukadev Bhattiprolu <sukadev@linux.vnet.ibm.com>,
Daniel Lezcano <dlezcano@fr.ibm.com>,
Sukadev Bhattiprolu <sukadev@us.ibm.com>,
Linux Containers <containers@lists.osdl.org>,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH 1/4] signals: SEND_SIG_NOINFO should be considered as SI_FROMUSER()
Date: Tue, 6 Oct 2009 15:37:32 +0200 [thread overview]
Message-ID: <20091006133732.GB8628@redhat.com> (raw)
In-Reply-To: <20091006073100.4184128@magilla.sf.frob.com>
On 10/06, Roland McGrath wrote:
>
> This whole series looks fine to me. I think in commenting and cleaning up
> any of this, it bears explicit mention that (almost) every signal is
> potentially reduced to SI_USER.
Yes,
> but your logs and comments are not explicit about the relationship
> between that logic and what's implicit in the queue-exhaustion behavior.
Yes. the changelog for 3/4 mentions that this SI_USER doesn't really
mean SI_FROMUSER(), but I agree I should have been more explicit.
Perhaps, we should add the comment to explain that both SI_FROMUSER()
and si_fromuser() are only valid in the sending pathes. Fortunately
get_signal_to_deliver and friends do not care about the origination of
the signal.
Oleg.
next prev parent reply other threads:[~2009-10-06 13:42 UTC|newest]
Thread overview: 28+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <4AC608BE.9020805@fr.ibm.com>
2009-10-03 17:10 ` pidns : PR_SET_PDEATHSIG + SIGKILL regression Sukadev Bhattiprolu
2009-10-04 2:18 ` [PATCH 0/4] Was: " Oleg Nesterov
2009-10-04 2:19 ` [PATCH 1/4] signals: SEND_SIG_NOINFO should be considered as SI_FROMUSER() Oleg Nesterov
2009-10-04 2:25 ` Oleg Nesterov
2009-10-05 17:58 ` Sukadev Bhattiprolu
2009-10-05 18:39 ` Oleg Nesterov
2009-10-06 0:09 ` Sukadev Bhattiprolu
2009-10-06 7:31 ` Roland McGrath
2009-10-06 13:37 ` Oleg Nesterov [this message]
2009-10-06 17:57 ` Roland McGrath
2009-10-07 11:30 ` Oleg Nesterov
2009-10-08 1:57 ` Roland McGrath
2009-10-04 2:19 ` [PATCH 2/4] signals: send_signal: use si_fromuser() to detect from_ancestor_ns Oleg Nesterov
2009-10-05 18:12 ` Sukadev Bhattiprolu
2009-10-05 18:25 ` Oleg Nesterov
2009-10-05 19:37 ` Sukadev Bhattiprolu
2009-10-05 19:44 ` Oleg Nesterov
2009-10-05 19:55 ` Oleg Nesterov
2009-10-06 0:06 ` Sukadev Bhattiprolu
2009-10-06 1:09 ` Oleg Nesterov
2009-10-06 2:34 ` Sukadev Bhattiprolu
2009-10-06 13:18 ` Oleg Nesterov
2009-10-06 18:01 ` Roland McGrath
2009-10-06 0:16 ` Sukadev Bhattiprolu
2009-10-04 2:20 ` [PATCH 3/4] signals: cosmetic, collect_signal: use SI_USER Oleg Nesterov
2009-10-05 18:03 ` Sukadev Bhattiprolu
2009-10-04 2:20 ` [PATCH 4/4] signals: kill force_sig_specific() Oleg Nesterov
2009-10-05 18:04 ` Sukadev Bhattiprolu
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