From: "Paul E. McKenney" <paulmck@linux.vnet.ibm.com>
To: linux-kernel@vger.kernel.org
Cc: 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
Subject: [PATCH tip/core/rcu 0/10] Don not IPI offline CPUs, de-emphasize cond_resched_rcu_qs()
Date: Fri, 1 Dec 2017 11:21:22 -0800 [thread overview]
Message-ID: <20171201192122.GA19301@linux.vnet.ibm.com> (raw)
Hello!
This series provides some fixes to prevent sending IPIs to offline
CPUs and also replaces most uses of cond_resched_rcu_qs() with the new
and improved cond_resched(). There are still a few remaining uses of
cond_resched_rcu_qs() in rcutorture because the mechanisms that strengthen
cond_resched() rely on RCU making forward progress. This series contains:
1. Stop resched_cpu() from sending IPIs to offline CPUs.
2. Stop switched_to_rt() from sending IPIs to offline CPUs.
3. Move netfilter from cond_resched_rcu_qs() to cond_resched().
4. Move mm from cond_resched_rcu_qs() to cond_resched().
5. Move workqueue from cond_resched_rcu_qs() to cond_resched().
6. Move trace from cond_resched_rcu_qs() to cond_resched().
7. Move softirq from cond_resched_rcu_qs() to cond_resched().
8. Move fs from cond_resched_rcu_qs() to cond_resched().
9. Remove cond_resched_rcu_qs() from documentation.
10. Improve performance by accounting for rcu_all_qs() in cond_resched().
Thanx, Paul
------------------------------------------------------------------------
Documentation/RCU/Design/Data-Structures/Data-Structures.html | 3 ++-
Documentation/RCU/Design/Requirements/Requirements.html | 4 ++--
Documentation/RCU/stallwarn.txt | 10 ++++------
fs/file.c | 2 +-
include/linux/rcupdate.h | 2 +-
kernel/sched/core.c | 3 ++-
kernel/sched/rt.c | 2 +-
kernel/softirq.c | 2 +-
kernel/trace/trace_benchmark.c | 2 +-
kernel/workqueue.c | 2 +-
mm/mlock.c | 2 +-
net/netfilter/nf_conntrack_core.c | 2 +-
12 files changed, 18 insertions(+), 18 deletions(-)
next reply other threads:[~2017-12-01 19:21 UTC|newest]
Thread overview: 32+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-12-01 19:21 Paul E. McKenney [this message]
2017-12-01 19:21 ` [PATCH tip/core/rcu 01/10] sched: Stop resched_cpu() from sending IPIs to offline CPUs Paul E. McKenney
2017-12-01 19:21 ` [PATCH tip/core/rcu 02/10] sched: Stop switched_to_rt() " Paul E. McKenney
2017-12-01 19:21 ` [PATCH tip/core/rcu 03/10] netfilter: Eliminate cond_resched_rcu_qs() in favor of cond_resched() Paul E. McKenney
2017-12-01 19:21 ` [PATCH tip/core/rcu 04/10] mm: " Paul E. McKenney
2017-12-01 19:21 ` [PATCH tip/core/rcu 05/10] workqueue: " Paul E. McKenney
2017-12-02 1:06 ` Lai Jiangshan
2017-12-04 18:28 ` Paul E. McKenney
2017-12-01 19:21 ` [PATCH tip/core/rcu 06/10] trace: " Paul E. McKenney
2018-02-24 20:12 ` Steven Rostedt
2018-02-25 17:49 ` Paul E. McKenney
2018-02-25 18:17 ` Paul E. McKenney
2018-02-25 18:39 ` Paul E. McKenney
2018-02-27 2:29 ` Steven Rostedt
2018-02-27 15:36 ` Paul E. McKenney
2018-02-28 23:12 ` Steven Rostedt
2018-03-01 1:21 ` Paul E. McKenney
2018-03-01 5:04 ` Steven Rostedt
2018-03-01 20:48 ` Paul E. McKenney
2018-03-02 20:06 ` Steven Rostedt
2018-03-03 0:54 ` Paul E. McKenney
2018-02-26 4:57 ` Steven Rostedt
2018-02-26 5:47 ` Paul E. McKenney
2017-12-01 19:21 ` [PATCH tip/core/rcu 07/10] softirq: " Paul E. McKenney
2017-12-01 19:21 ` [PATCH tip/core/rcu 08/10] fs: " Paul E. McKenney
2017-12-01 19:21 ` [PATCH tip/core/rcu 09/10] doc: " Paul E. McKenney
2017-12-01 19:21 ` [PATCH tip/core/rcu 10/10] rcu: Account for rcu_all_qs() in cond_resched() Paul E. McKenney
2017-12-02 8:56 ` Peter Zijlstra
2017-12-02 12:22 ` Paul E. McKenney
2017-12-02 13:55 ` Peter Zijlstra
2018-02-24 20:18 ` Steven Rostedt
2018-02-25 17:52 ` Paul E. McKenney
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