linux-kernel - [PATCH tip/core/rcu 0/16] Miscellaneous fixes for v5.11

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Message-ID: <20201105230856.GA18904@paulmck-ThinkPad-P72>
Date:   Thu, 5 Nov 2020 15:08:56 -0800
From:   "Paul E. McKenney" <paulmck@...nel.org>
To:     rcu@...r.kernel.org
Cc:     linux-kernel@...r.kernel.org, kernel-team@...com, mingo@...nel.org,
        jiangshanlai@...il.com, akpm@...ux-foundation.org,
        mathieu.desnoyers@...icios.com, josh@...htriplett.org,
        tglx@...utronix.de, peterz@...radead.org, rostedt@...dmis.org,
        dhowells@...hat.com, edumazet@...gle.com, fweisbec@...il.com,
        oleg@...hat.com, joel@...lfernandes.org
Subject: [PATCH tip/core/rcu 0/16] Miscellaneous fixes for v5.11

Hello!

This series contains miscellaneous fixes:

1.	Don't invoke try_invoke_on_locked_down_task() with irqs disabled.

2.	Move x86's rcu_cpu_starting() earlier.

3.	Panic after fixed number of stalls.

4.	Update list.h comment to explicitly note circular lists.

5.	Implement rcu_segcblist_is_offloaded() config dependent.

6.	Fix single-CPU check in rcu_blocking_is_gp().

7.	Clarify nocb kthreads naming in RCU_NOCB_CPU config.

8.	Add a warning if CPU being onlined did not report QS already.

9.	Make struct kernel_param_ops definitions const.

10.	Fix ftrace recursion.

11.	nocb: Avoid raising softirq for offloaded ready-to-execute CBs.

12.	Prevent lockdep-RCU splats on lock acquisition/release.

13.	Fix a typo in rcu_blocking_is_gp() header comment.

14.	Do not report strict GPs for outgoing CPUs.

15.	Defer kvfree_rcu() allocation to a clean context.

16.	Take early exit on memory-allocation failure.

						Thanx, Paul

------------------------------------------------------------------------

 arch/x86/kernel/cpu/mtrr/mtrr.c |    2 
 arch/x86/kernel/smpboot.c       |    1 
 include/linux/kernel.h          |    1 
 include/linux/list.h            |    2 
 kernel/rcu/Kconfig              |   20 ++--
 kernel/rcu/rcu_segcblist.h      |    2 
 kernel/rcu/srcutree.c           |    4 
 kernel/rcu/tree.c               |  188 +++++++++++++++++++++++++---------------
 kernel/rcu/tree.h               |    2 
 kernel/rcu/tree_plugin.h        |    2 
 kernel/rcu/tree_stall.h         |   28 ++++-
 kernel/sysctl.c                 |   11 ++
 12 files changed, 178 insertions(+), 85 deletions(-)