From: Andrew Morton <akpm@linux-foundation•org>
To: David Miller <davem@davemloft•net>
Cc: netdev@vger•kernel.org, scott@ubuntu•com, johnpol@2ka•mipt.ru,
matthltc@us•ibm.com, oleg@tv-sign•ru
Subject: Re: [patch 1/1] proc connector: add event for process becoming session leader
Date: Wed, 12 Aug 2009 18:02:31 -0700 [thread overview]
Message-ID: <20090812180231.1bdebc03.akpm@linux-foundation.org> (raw)
In-Reply-To: <20090812.173203.35197832.davem@davemloft.net>
On Wed, 12 Aug 2009 17:32:03 -0700 (PDT) David Miller <davem@davemloft•net> wrote:
> From: akpm@linux-foundation•org
> Date: Thu, 06 Aug 2009 16:05:47 -0700
>
> > From: Scott James Remnant <scott@ubuntu•com>
> >
> > The act of a process becoming a session leader is a useful signal to a
> > supervising init daemon such as Upstart.
> >
> > While a daemon will normally do this as part of the process of becoming a
> > daemon, it is rare for its children to do so. When the children do, it is
> > nearly always a sign that the child should be considered detached from the
> > parent and not supervised along with it.
> >
> > The poster-child example is OpenSSH; the per-login children call setsid()
> > so that they may control the pty connected to them. If the primary daemon
> > dies or is restarted, we do not want to consider the per-login children
> > and want to respawn the primary daemon without killing the children.
> >
> > This patch adds a new PROC_SID_EVENT and associated structure to the
> > proc_event event_data union, it arranges for this to be emitted when the
> > special PIDTYPE_SID pid is set.
> >
> > [akpm@linux-foundation•org: coding-style fixes]
> > Signed-off-by: Scott James Remnant <scott@ubuntu•com>
> > Acked-by: Matt Helsley <matthltc@us•ibm.com>
> > Cc: Oleg Nesterov <oleg@tv-sign•ru>
> > Cc: Evgeniy Polyakov <johnpol@2ka•mipt.ru>
> > Cc: "David S. Miller" <davem@davemloft•net>
> > Signed-off-by: Andrew Morton <akpm@linux-foundation•org>
>
> Acked-by: David S. Miller <davem@davemloft•net>
Ta.
> This is more process handling level stuff than actual networking
> or connector bits, so it should probably be merged via akpm's
> usual patch bombs or some other relevant tree.
>
> Andrew, if you really want, I can take this into net-next-2.6
No probs, I'll send it for 2.6.32-rc1.
prev parent reply other threads:[~2009-08-13 1:02 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-08-06 23:05 [patch 1/1] proc connector: add event for process becoming session leader akpm
2009-08-13 0:32 ` David Miller
2009-08-13 1:02 ` Andrew Morton [this message]
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