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 0/12]
Date: Thu, 30 May 2019 07:52:04 -0700 [thread overview]
Message-ID: <20190530145204.GA28526@linux.ibm.com> (raw)
Hello!
This series provides yet more cleanups and fixes for the RCU flavor
consolidation effort:
1. Enable elimination of Tree-RCU softirq processing, courtesy of
Sebastian Andrzej Siewior. (More along the lines of real-time
than consolidation, but placed here to avoid conflicts.)
2. Check for wakeup-safe conditions in rcu_read_unlock_special().
3. Only do rcu_read_unlock_special() wakeups if expedited.
4. Allow rcu_read_unlock_special() to raise_softirq() if in_irq().
5. Use irq_work to get scheduler's attention in clean context.
6. Inline invoke_rcu_callbacks() into its sole remaining caller.
7. Avoid self-IPI in sync_rcu_exp_select_node_cpus().
8. Avoid self-IPI in sync_sched_exp_online_cleanup().
9. Add assertion to check if in an interrupt, courtesy of Joel
Fernandes.
10. Add checks for dynticks counters in rcu_is_cpu_rrupt_from_idle(),
courtesy of Joel Fernandes.
11. Rename rcu_data's ->deferred_qs to ->exp_deferred_qs.
12. Remove unused rdp local from synchronize_rcu_expedited(),
courtesy of Jiang Biao.
Thanx, Paul
------------------------------------------------------------------------
Documentation/admin-guide/kernel-parameters.txt | 6
include/linux/lockdep.h | 7
include/linux/sched.h | 2
kernel/rcu/tree.c | 179 +++++++++++++++++----
kernel/rcu/tree.h | 6
kernel/rcu/tree_exp.h | 50 ++++-
kernel/rcu/tree_plugin.h | 201 +++++++-----------------
7 files changed, 267 insertions(+), 184 deletions(-)
next reply other threads:[~2019-05-30 14:52 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-05-30 14:52 Paul E. McKenney [this message]
2019-05-30 14:52 ` [PATCH tip/core/rcu 01/12] rcu: Enable elimination of Tree-RCU softirq processing Paul E. McKenney
2019-05-30 14:52 ` [PATCH tip/core/rcu 02/12] rcu: Check for wakeup-safe conditions in rcu_read_unlock_special() Paul E. McKenney
2019-05-30 14:52 ` [PATCH tip/core/rcu 03/12] rcu: Only do rcu_read_unlock_special() wakeups if expedited Paul E. McKenney
2019-05-30 14:52 ` [PATCH tip/core/rcu 04/12] rcu: Allow rcu_read_unlock_special() to raise_softirq() if in_irq() Paul E. McKenney
2019-05-30 14:52 ` [PATCH tip/core/rcu 05/12] rcu: Use irq_work to get scheduler's attention in clean context Paul E. McKenney
2019-05-30 14:52 ` [PATCH tip/core/rcu 06/12] rcu: Inline invoke_rcu_callbacks() into its sole remaining caller Paul E. McKenney
2019-05-30 14:52 ` [PATCH tip/core/rcu 07/12] rcu: Avoid self-IPI in sync_rcu_exp_select_node_cpus() Paul E. McKenney
2019-05-30 14:52 ` [PATCH tip/core/rcu 08/12] rcu: Avoid self-IPI in sync_sched_exp_online_cleanup() Paul E. McKenney
2019-05-30 14:52 ` [PATCH tip/core/rcu 09/12] lockdep: Add assertion to check if in an interrupt Paul E. McKenney
2019-05-30 14:52 ` [PATCH tip/core/rcu 10/12] rcu: Add checks for dynticks counters in rcu_is_cpu_rrupt_from_idle() Paul E. McKenney
2019-05-30 14:52 ` [PATCH tip/core/rcu 11/12] rcu: Rename rcu_data's ->deferred_qs to ->exp_deferred_qs Paul E. McKenney
2019-05-30 14:52 ` [PATCH tip/core/rcu 12/12] rcu: Remove unused rdp local from synchronize_rcu_expedited() Paul E. McKenney
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=20190530145204.GA28526@linux.ibm.com \
--to=paulmck@linux.ibm.com \
--cc=akpm@linux-foundation.org \
--cc=dhowells@redhat.com \
--cc=dipankar@in.ibm.com \
--cc=edumazet@google.com \
--cc=fweisbec@gmail.com \
--cc=jiangshanlai@gmail.com \
--cc=joel@joelfernandes.org \
--cc=josh@joshtriplett.org \
--cc=linux-kernel@vger.kernel.org \
--cc=mathieu.desnoyers@efficios.com \
--cc=mingo@kernel.org \
--cc=oleg@redhat.com \
--cc=peterz@infradead.org \
--cc=rcu@vger.kernel.org \
--cc=rostedt@goodmis.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 an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.