linux-kernel - [PATCH tip/core/rcu 0/6] Miscellaneous fixes for 4.7

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Message-ID: <20160412150157.GA19367@linux.vnet.ibm.com>
Date:	Tue, 12 Apr 2016 08:01:57 -0700
From:	"Paul E. McKenney" <paulmck@...ux.vnet.ibm.com>
To:	linux-kernel@...r.kernel.org
Cc:	mingo@...nel.org, jiangshanlai@...il.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 0/6] Miscellaneous fixes for 4.7

Hello!

This series provides miscellaneous fixes for RCU:

1.	Consolidate RCU's single-shot dumping of the ftrace buffer.  
	This is a bit widespread, so the upcoming documentation,
	expedited-grace-period, and torture patchsets are also based
	on this patch.

2.	Awaken grace-period kthread at RCU CPU stall-warning time.

3.	Move the FQS timeout farther into the future only if the current
	wakeup actually resulted in an FQS scan.

4.	Awaken grace-period kthread if too long since FQS.

5.	Remove superfluous versions of rcu_read_lock_sched_held(),
	courtesy of Boqun Feng.

6.	Dump ftrace buffer when kicking grace-period kthread.

								Thanx, Paul

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

 include/linux/rcupdate.h |   30 +++++++++----------
 kernel/rcu/rcutorture.c  |   17 +----------
 kernel/rcu/tree.c        |   71 ++++++++++++++++++++++++++++++++++++++---------
 kernel/rcu/tree.h        |    2 +
 kernel/rcu/update.c      |    4 +-
 5 files changed, 79 insertions(+), 45 deletions(-)