From: Oleg Nesterov <oleg-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
To: Sukadev Bhattiprolu
<sukadev-23VcF4HTsmIX0ybBhKVfKdBPR1lH4CV8@public.gmane.org>
Cc: bastian-yyjItF7Rl6lg9hUCZPvPmw@public.gmane.org,
linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
ebiederm-aS9lmoZGLiVWk0Htik3J/w@public.gmane.org,
containers-qjLDD68F18O7TbgM5vRIOg@public.gmane.org,
roland-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org,
xemul-GEFAQzZX7r8dnm+yROfE0A@public.gmane.org
Subject: Re: [RFC][PATCH 4/6][v3] Define siginfo_from_ancestor_ns()
Date: Tue, 23 Dec 2008 00:01:33 +0100 [thread overview]
Message-ID: <20081222230133.GD1536@redhat.com> (raw)
In-Reply-To: <20081222222604.GA1536-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
On 12/22, Oleg Nesterov wrote:
>
> On 12/20, Sukadev Bhattiprolu wrote:
> >
> > + * TODO:
> > + * Making SI_ASYNCIO a kernel signal could make this less hacky.
> > + */
> > +#ifdef CONFIG_PID_NS
> > +static inline int siginfo_from_user(siginfo_t *info)
> > +{
> > + if (!is_si_special(info) && SI_FROMUSER(info) &&
>
> OK, if we can trust SI_FROMUSER(), then it is better, i agree.
Aaah, forgot to mention...
But could you explain how are you going to fix another problem,
.si_pid mangling? This was another reason for (yes, ugly, agreed)
SIG_FROM_USER in .si_signo.
Oleg.
next prev parent reply other threads:[~2008-12-22 23:01 UTC|newest]
Thread overview: 26+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-12-21 0:51 [RFC][PATCH 0/6][v3] Container-init signal semantics Sukadev Bhattiprolu
2008-12-21 0:52 ` [RFC][PATCH 1/6][v3] Remove 'handler' parameter to tracehook functions Sukadev Bhattiprolu
2008-12-23 19:30 ` Roland McGrath
2008-12-21 0:53 ` [RFC][PATCH 2/6][v3] Protect init from unwanted signals more Sukadev Bhattiprolu
[not found] ` <20081221005319.GB5025-r/Jw6+rmf7HQT0dZR+AlfA@public.gmane.org>
2008-12-23 19:31 ` Roland McGrath
[not found] ` <20081221005106.GA4912-r/Jw6+rmf7HQT0dZR+AlfA@public.gmane.org>
2008-12-21 0:53 ` [RFC][PATCH 3/6][v3] Define/set SIGNAL_UNKILLABLE_FROM_NS Sukadev Bhattiprolu
2008-12-21 0:54 ` [RFC][PATCH 4/6][v3] Define siginfo_from_ancestor_ns() Sukadev Bhattiprolu
2008-12-22 22:26 ` Oleg Nesterov
[not found] ` <20081222222604.GA1536-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
2008-12-22 23:01 ` Oleg Nesterov [this message]
2008-12-22 23:58 ` Sukadev Bhattiprolu
2008-12-23 0:22 ` Oleg Nesterov
[not found] ` <20081223002215.GA7984-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
2008-12-23 0:32 ` Eric W. Biederman
2008-12-23 4:47 ` Sukadev Bhattiprolu
2008-12-22 23:45 ` Sukadev Bhattiprolu
2008-12-22 23:54 ` Oleg Nesterov
2008-12-21 0:54 ` [RFC][PATCH 5/6][v3] Protect cinit from unblocked SIG_DFL signals Sukadev Bhattiprolu
2008-12-22 22:46 ` Oleg Nesterov
2008-12-21 0:55 ` [RFC][PATCH 6/6][v3] Protect cinit from blocked fatal signals Sukadev Bhattiprolu
[not found] ` <20081221005529.GF5025-r/Jw6+rmf7HQT0dZR+AlfA@public.gmane.org>
2008-12-22 22:58 ` Oleg Nesterov
2008-12-22 23:38 ` Sukadev Bhattiprolu
[not found] ` <20081222233855.GA13079-r/Jw6+rmf7HQT0dZR+AlfA@public.gmane.org>
2008-12-23 0:03 ` Oleg Nesterov
2008-12-22 10:55 ` [RFC][PATCH 0/6][v3] Container-init signal semantics Eric W. Biederman
2008-12-22 19:47 ` Sukadev Bhattiprolu
[not found] ` <20081222194737.GC9085-r/Jw6+rmf7HQT0dZR+AlfA@public.gmane.org>
2008-12-23 0:27 ` Eric W. Biederman
2008-12-23 2:12 ` Sukadev Bhattiprolu
2008-12-23 16:51 ` Serge E. Hallyn
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