From: "Paul E. McKenney" <paulmck@kernel.org>
To: rcu@vger.kernel.org
Cc: linux-kernel@vger.kernel.org, kernel-team@fb.com, rostedt@goodmis.org
Subject: [PATCH rcu 0/12] Polled grace-period updates for v5.20
Date: Mon, 20 Jun 2022 15:49:43 -0700 [thread overview]
Message-ID: <20220620224943.GA3841634@paulmck-ThinkPad-P17-Gen-1> (raw)
Hello!
This series adds support for polled expedited RCU grace periods:
1. Make normal polling GP be more precise about sequence numbers.
2. Provide a get_completed_synchronize_rcu() function.
3. Validate get_completed_synchronize_rcu().
4. Switch polled grace-period APIs to ->gp_seq_polled.
5. Make polled grace-period API account for expedited grace periods.
6. Make Tiny RCU grace periods visible to polled APIs.
7. Verify that polled GP API sees synchronous grace periods.
8. Add polled expedited grace-period primitives.
9. Test polled expedited grace-period primitives.
10. Put panic_on_rcu_stall() after expedited RCU CPU stall warnings,
courtesy of Zqiang.
11. Diagnose extended sync_rcu_do_polled_gp() loops.
12. Add irqs-disabled indicator to expedited RCU CPU stall warnings,
courtesy of Zqiang.
Thanx, Paul
------------------------------------------------------------------------
b/include/linux/rcupdate.h | 1
b/include/linux/rcutiny.h | 10 +++
b/include/linux/rcutree.h | 2
b/kernel/rcu/rcu.h | 12 ++++
b/kernel/rcu/rcutorture.c | 6 ++
b/kernel/rcu/tiny.c | 4 -
b/kernel/rcu/tree.c | 4 -
b/kernel/rcu/tree.h | 2
b/kernel/rcu/tree_exp.h | 16 +++++-
b/kernel/rcu/update.c | 13 ++++
kernel/rcu/rcu.h | 3 +
kernel/rcu/rcutorture.c | 97 +++++++++++++++++++++++++++++++-----
kernel/rcu/tiny.c | 7 +-
kernel/rcu/tree.c | 119 ++++++++++++++++++++++++++++++++++++++++-----
kernel/rcu/tree.h | 8 +++
kernel/rcu/tree_exp.h | 99 +++++++++++++++++++++++++++++++++++--
16 files changed, 365 insertions(+), 38 deletions(-)
next reply other threads:[~2022-06-20 22:49 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-06-20 22:49 Paul E. McKenney [this message]
2022-06-20 22:51 ` [PATCH rcu 01/12] rcu: Make normal polling GP be more precise about sequence numbers Paul E. McKenney
2022-06-20 22:51 ` [PATCH rcu 02/12] rcu: Provide a get_completed_synchronize_rcu() function Paul E. McKenney
2022-06-20 22:51 ` [PATCH rcu 03/12] rcutorture: Validate get_completed_synchronize_rcu() Paul E. McKenney
2022-06-20 22:51 ` [PATCH rcu 04/12] rcu: Switch polled grace-period APIs to ->gp_seq_polled Paul E. McKenney
2022-07-21 0:53 ` Boqun Feng
2022-07-21 1:04 ` Paul E. McKenney
2022-07-21 1:51 ` Boqun Feng
2022-07-21 4:47 ` Paul E. McKenney
2022-07-21 5:49 ` Boqun Feng
2022-07-22 1:03 ` Paul E. McKenney
2022-07-21 1:56 ` Paul E. McKenney
2022-06-20 22:51 ` [PATCH rcu 05/12] rcu: Make polled grace-period API account for expedited grace periods Paul E. McKenney
2022-06-20 22:51 ` [PATCH rcu 06/12] rcu: Make Tiny RCU grace periods visible to polled APIs Paul E. McKenney
2022-06-20 22:51 ` [PATCH rcu 07/12] rcutorture: Verify that polled GP API sees synchronous grace periods Paul E. McKenney
2022-06-20 22:51 ` [PATCH rcu 08/12] rcu: Add polled expedited grace-period primitives Paul E. McKenney
2022-06-20 22:51 ` [PATCH rcu 09/12] rcutorture: Test " Paul E. McKenney
2022-06-20 22:51 ` [PATCH rcu 10/12] rcu: Put panic_on_rcu_stall() after expedited RCU CPU stall warnings Paul E. McKenney
2022-06-20 22:51 ` [PATCH rcu 11/12] rcu: Diagnose extended sync_rcu_do_polled_gp() loops Paul E. McKenney
2022-06-20 22:51 ` [PATCH rcu 12/12] rcu: Add irqs-disabled indicator to expedited RCU CPU stall warnings Paul E. McKenney
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