linux-kernel - Re: [PATCH tip/core/rcu 0/2] Signal-related changes for 3.19

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Date:	Tue, 28 Oct 2014 22:13:06 -0400
From:	Pranith Kumar <bobby.prani@...il.com>
To:	Paul McKenney <paulmck@...ux.vnet.ibm.com>
Cc:	LKML <linux-kernel@...r.kernel.org>,
	Ingo Molnar <mingo@...nel.org>,
	Lai Jiangshan <laijs@...fujitsu.com>,
	Dipankar Sarma <dipankar@...ibm.com>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Mathieu Desnoyers <mathieu.desnoyers@...icios.com>,
	Josh Triplett <josh@...htriplett.org>,
	Thomas Gleixner <tglx@...utronix.de>,
	Peter Zijlstra <peterz@...radead.org>,
	Steven Rostedt <rostedt@...dmis.org>,
	David Howells <dhowells@...hat.com>,
	Eric Dumazet <edumazet@...gle.com>, dvhart@...ux.intel.com,
	Frédéric Weisbecker <fweisbec@...il.com>,
	Oleg Nesterov <oleg@...hat.com>
Subject: Re: [PATCH tip/core/rcu 0/2] Signal-related changes for 3.19

On Tue, Oct 28, 2014 at 6:13 PM, Paul E. McKenney
<paulmck@...ux.vnet.ibm.com> wrote:
> Hello!
>
> This series updates RCU handling in signals:
>
> 1.      Prevents a possible very long RCU read-side critical section
>         in kill_pid_info().
>
> 2.      Explain why the "obviously buggy" freeing of sighand by
>         __cleanup_sighand() without an RCU grace period really isn't
>         buggy, courtesy of Oleg Nesterov.


Reviewed-by: Pranith Kumar <bobby.prani@...il.com>

>
>                                                         Thanx, Paul
>
> ------------------------------------------------------------------------
>
>  b/kernel/fork.c   |    5 ++++-
>  b/kernel/signal.c |   42 +++++++++++++++++++++++++-----------------
>  2 files changed, 29 insertions(+), 18 deletions(-)
>



-- 
Pranith
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