From: "Paul E. McKenney" <paulmck@linux.ibm.com>
To: rcu@vger.kernel.org
Cc: linux-kernel@vger.kernel.org, mingo@kernel.org,
jiangshanlai@gmail.com, dipankar@in.ibm.com,
akpm@linux-foundation.org, mathieu.desnoyers@efficios.com,
josh@joshtriplett.org, tglx@linutronix.de, peterz@infradead.org,
rostedt@goodmis.org, dhowells@redhat.com, edumazet@google.com,
fweisbec@gmail.com, oleg@redhat.com, joel@joelfernandes.org
Subject: [PATCH tip/core/rcu 0/11] No-CBs grace-period kthread updates for v5.3-rc2
Date: Thu, 1 Aug 2019 15:50:09 -0700 [thread overview]
Message-ID: <20190801225009.GA17155@linux.ibm.com> (raw)
Hello!
This series reduces memory footprint (RCU callbacks posted by no-CBs
CPUs) by providing separate rcuog kthreads that wait for grace periods,
thus avoiding the current situation in which callbacks are delayed while
the leader rcuo kthreads invokes callbacks:
1. Rename rcu_data fields to prepare for forward-progress work.
2. Update comments to prepare for forward-progress work.
3. Provide separate no-CBs grace-period kthreads.
4. Rename nocb_follower_wait() to nocb_cb_wait().
5. Rename wake_nocb_leader() to wake_nocb_gp().
6. Rename __wake_nocb_leader() to __wake_nocb_gp().
7. Rename wake_nocb_leader_defer() to wake_nocb_gp_defer().
8. Rename rcu_organize_nocb_kthreads() local variable.
9. Rename and document no-CB CB kthread sleep trace event.
10. Rename rcu_nocb_leader_stride kernel boot parameter.
11. Print gp/cb kthread hierarchy if dump_tree.
Thanx, Paul
------------------------------------------------------------------------
Documentation/admin-guide/kernel-parameters.txt | 13 -
include/trace/events/rcu.h | 3
kernel/rcu/tree.h | 28 +-
kernel/rcu/tree_plugin.h | 312 ++++++++++++------------
4 files changed, 183 insertions(+), 173 deletions(-)
next reply other threads:[~2019-08-01 22:51 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-08-01 22:50 Paul E. McKenney [this message]
2019-08-01 22:50 ` [PATCH tip/core/rcu 01/11] rcu/nocb: Rename rcu_data fields to prepare for forward-progress work Paul E. McKenney
2019-08-01 22:50 ` [PATCH tip/core/rcu 02/11] rcu/nocb: Update comments " Paul E. McKenney
2019-08-01 22:50 ` [PATCH tip/core/rcu 03/11] rcu/nocb: Provide separate no-CBs grace-period kthreads Paul E. McKenney
2019-08-03 17:41 ` Joel Fernandes
2019-08-03 19:46 ` Paul E. McKenney
2019-08-04 19:24 ` Joel Fernandes
2019-08-01 22:50 ` [PATCH tip/core/rcu 04/11] rcu/nocb: Rename nocb_follower_wait() to nocb_cb_wait() Paul E. McKenney
2019-08-01 22:50 ` [PATCH tip/core/rcu 05/11] rcu/nocb: Rename wake_nocb_leader() to wake_nocb_gp() Paul E. McKenney
2019-08-01 22:50 ` [PATCH tip/core/rcu 06/11] rcu/nocb: Rename __wake_nocb_leader() to __wake_nocb_gp() Paul E. McKenney
2019-08-01 22:50 ` [PATCH tip/core/rcu 07/11] rcu/nocb: Rename wake_nocb_leader_defer() to wake_nocb_gp_defer() Paul E. McKenney
2019-08-01 22:50 ` [PATCH tip/core/rcu 08/11] rcu/nocb: Rename rcu_organize_nocb_kthreads() local variable Paul E. McKenney
2019-08-01 22:50 ` [PATCH tip/core/rcu 09/11] rcu/nocb: Rename and document no-CB CB kthread sleep trace event Paul E. McKenney
2019-08-01 22:50 ` [PATCH tip/core/rcu 10/11] rcu/nocb: Rename rcu_nocb_leader_stride kernel boot parameter Paul E. McKenney
2019-08-01 22:50 ` [PATCH tip/core/rcu 11/11] rcu/nocb: Print gp/cb kthread hierarchy if dump_tree Paul E. McKenney
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