stable.vger.kernel.org archive mirror
 help / color / mirror / Atom feed
From: Frederic Weisbecker <frederic@kernel.org>
To: "Paul E . McKenney" <paulmck@kernel.org>
Cc: LKML <linux-kernel@vger.kernel.org>,
	Frederic Weisbecker <frederic@kernel.org>,
	Thomas Gleixner <tglx@linutronix.de>,
	Boqun Feng <boqun.feng@gmail.com>,
	Lai Jiangshan <jiangshanlai@gmail.com>,
	Neeraj Upadhyay <neeraju@codeaurora.org>,
	Josh Triplett <josh@joshtriplett.org>,
	Stable <stable@vger.kernel.org>,
	Joel Fernandes <joel@joelfernandes.org>
Subject: [PATCH 00/13] rcu/nocb updates v2
Date: Tue, 23 Feb 2021 01:09:58 +0100	[thread overview]
Message-ID: <20210223001011.127063-1-frederic@kernel.org> (raw)

It's a v2 of the previous set (https://lore.kernel.org/lkml/20210128171222.131380-1-frederic@kernel.org/)
minus the patches already applied in rcu/dev. And this is based on 
latest rcu/dev.

Changelog since v1:

"rcu/nocb: Fix potential missed nocb_timer rearm"
	* Remove nocb_defer_wakeup reset from do_nocb_deferred_wakeup_common() (paulmck)
	* Only reset/del if the timer is actually armed
	* Add secondary potential cause for missed rearm in the changelog

"rcu/nocb: Disable bypass when CPU isn't completely offloaded"
	* Improve comments on state machine (paulmck)
	* Add comment (a full quote from Paul) explaining why early flush is enough (paulmck)
	* Move sanity check to the very end of deoffloading (paulmck)
	* Clarify some comments about nocb locking on de-offloading (paulmck)

"rcu/nocb: Remove stale comment above rcu_segcblist_offload()"
	* New patch, reported by (paulmck)

"rcu/nocb: Merge nocb_timer to the rdp leader"
	* Remove rcu_running_nocb_timer() and its use in rcu_rdp_is_offloaded()
	  debugging since the timer doesn't refer to any rdp offloading anymore.
	* Only delete nocb_timer when armed, in nocb_gp_wait()
	* Clarify some comments about nocb locking on de-offloading (paulmck)
	* Remove stale code "re-enabling" nocb timer on offloading. Not necessary
	  anymore and even buggy.

"timer: Revert "timer: Add timer_curr_running()""
	* New patch

git://git.kernel.org/pub/scm/linux/kernel/git/frederic/linux-dynticks.git
	rcu/dev-v2

HEAD: 925ee3076eb694db893e2c6664d90ad8fb9cb6e5

Thanks,
	Frederic
---

Frederic Weisbecker (13):
      rcu/nocb: Fix potential missed nocb_timer rearm
      rcu/nocb: Disable bypass when CPU isn't completely offloaded
      rcu/nocb: Remove stale comment above rcu_segcblist_offload()
      rcu/nocb: Move trace_rcu_nocb_wake() calls outside nocb_lock when possible
      rcu/nocb: Merge nocb_timer to the rdp leader
      timer: Revert "timer: Add timer_curr_running()"
      rcu/nocb: Directly call __wake_nocb_gp() from bypass timer
      rcu/nocb: Allow de-offloading rdp leader
      rcu/nocb: Cancel nocb_timer upon nocb_gp wakeup
      rcu/nocb: Delete bypass_timer upon nocb_gp wakeup
      rcu/nocb: Only cancel nocb timer if not polling
      rcu/nocb: Prepare for finegrained deferred wakeup
      rcu/nocb: Unify timers


 include/linux/rcu_segcblist.h |   7 +-
 include/linux/timer.h         |   2 -
 include/trace/events/rcu.h    |   1 +
 kernel/rcu/rcu_segcblist.c    |   3 +-
 kernel/rcu/tree.c             |   2 +-
 kernel/rcu/tree.h             |   9 +-
 kernel/rcu/tree_plugin.h      | 233 +++++++++++++++++++++++-------------------
 kernel/time/timer.c           |  14 ---
 8 files changed, 141 insertions(+), 130 deletions(-)

             reply	other threads:[~2021-02-23  0:11 UTC|newest]

Thread overview: 39+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-02-23  0:09 Frederic Weisbecker [this message]
2021-02-23  0:09 ` [PATCH 01/13] rcu/nocb: Fix potential missed nocb_timer rearm Frederic Weisbecker
2021-02-24 18:37   ` Paul E. McKenney
2021-02-24 22:06     ` Frederic Weisbecker
2021-02-25  0:14       ` Paul E. McKenney
2021-02-25  0:48         ` Frederic Weisbecker
2021-02-25  1:07           ` Paul E. McKenney
2021-03-02  1:48       ` Paul E. McKenney
2021-03-02 12:34         ` Frederic Weisbecker
2021-03-02 18:17           ` Paul E. McKenney
2021-03-03  1:35             ` Frederic Weisbecker
2021-03-03  2:06               ` Paul E. McKenney
2021-03-03  2:17                 ` Frederic Weisbecker
2021-03-03 11:15             ` Neeraj Upadhyay
2021-02-23  0:10 ` [PATCH 02/13] rcu/nocb: Disable bypass when CPU isn't completely offloaded Frederic Weisbecker
2021-02-23  0:10 ` [PATCH 03/13] rcu/nocb: Remove stale comment above rcu_segcblist_offload() Frederic Weisbecker
2021-02-23  0:10 ` [PATCH 04/13] rcu/nocb: Move trace_rcu_nocb_wake() calls outside nocb_lock when possible Frederic Weisbecker
2021-02-23  0:10 ` [PATCH 05/13] rcu/nocb: Merge nocb_timer to the rdp leader Frederic Weisbecker
2021-03-03  1:15   ` [PATCH 05/13] rcu/nocb: Use the rcuog CPU's ->nocb_timer Paul E. McKenney
2021-03-10 22:05     ` Frederic Weisbecker
2021-03-16  0:02       ` Paul E. McKenney
2021-02-23  0:10 ` [PATCH 06/13] timer: Revert "timer: Add timer_curr_running()" Frederic Weisbecker
2021-02-23  0:10 ` [PATCH 07/13] rcu/nocb: Directly call __wake_nocb_gp() from bypass timer Frederic Weisbecker
2021-02-23  0:10 ` [PATCH 08/13] rcu/nocb: Allow de-offloading rdp leader Frederic Weisbecker
2021-02-23  0:10 ` [PATCH 09/13] rcu/nocb: Cancel nocb_timer upon nocb_gp wakeup Frederic Weisbecker
2021-02-23  0:10 ` [PATCH 10/13] rcu/nocb: Delete bypass_timer " Frederic Weisbecker
2021-03-03  1:24   ` Paul E. McKenney
2021-03-10 22:17     ` Frederic Weisbecker
2021-03-15 14:53       ` Boqun Feng
2021-03-15 22:56         ` Frederic Weisbecker
2021-03-16  0:02           ` Paul E. McKenney
2021-02-23  0:10 ` [PATCH 11/13] rcu/nocb: Only cancel nocb timer if not polling Frederic Weisbecker
2021-03-03  1:22   ` Paul E. McKenney
2021-03-10 22:08     ` Frederic Weisbecker
2021-02-23  0:10 ` [PATCH 12/13] rcu/nocb: Prepare for finegrained deferred wakeup Frederic Weisbecker
2021-03-16  3:02   ` Paul E. McKenney
2021-03-16 11:45     ` Frederic Weisbecker
2021-03-16 14:02       ` Paul E. McKenney
2021-02-23  0:10 ` [PATCH 13/13] rcu/nocb: Unify timers Frederic Weisbecker

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=20210223001011.127063-1-frederic@kernel.org \
    --to=frederic@kernel.org \
    --cc=boqun.feng@gmail.com \
    --cc=jiangshanlai@gmail.com \
    --cc=joel@joelfernandes.org \
    --cc=josh@joshtriplett.org \
    --cc=linux-kernel@vger.kernel.org \
    --cc=neeraju@codeaurora.org \
    --cc=paulmck@kernel.org \
    --cc=stable@vger.kernel.org \
    --cc=tglx@linutronix.de \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body. 
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).