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

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Message-ID: <20141028221330.GA27479@linux.vnet.ibm.com>
Date:	Tue, 28 Oct 2014 15:13:30 -0700
From:	"Paul E. McKenney" <paulmck@...ux.vnet.ibm.com>
To:	linux-kernel@...r.kernel.org
Cc:	mingo@...nel.org, laijs@...fujitsu.com, dipankar@...ibm.com,
	akpm@...ux-foundation.org, mathieu.desnoyers@...icios.com,
	josh@...htriplett.org, tglx@...utronix.de, peterz@...radead.org,
	rostedt@...dmis.org, dhowells@...hat.com, edumazet@...gle.com,
	dvhart@...ux.intel.com, fweisbec@...il.com, oleg@...hat.com,
	bobby.prani@...il.com
Subject: [PATCH tip/core/rcu 0/2] Signal-related changes for 3.19

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.

							Thanx, Paul

------------------------------------------------------------------------

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

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