linux-kernel - Re: [GIT PULL tip/core/rcu+preempt] Fix RT raw/non-raw lock ordering

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Message-ID: <20201009165500.GA2904859@gmail.com>
Date:   Fri, 9 Oct 2020 18:55:00 +0200
From:   Ingo Molnar <mingo@...nel.org>
To:     "Paul E. McKenney" <paulmck@...nel.org>
Cc:     tglx@...utronix.de, linux-kernel@...r.kernel.org,
        kernel-team@...com, urezki@...il.com, lkp@...el.com,
        julia.lawall@...ia.fr, mhocko@...nel.org,
        mgorman@...hsingularity.net, vbabka@...e.cz, peterz@...radead.org,
        torvalds@...ux-foundation.org
Subject: Re: [GIT PULL tip/core/rcu+preempt] Fix RT raw/non-raw lock ordering


* Paul E. McKenney <paulmck@...nel.org> wrote:

> Hello!
> 
> This pull request contains Thomas Gleixner's "Make preempt count
> unconditional" series [1], but with the addition of a kvfree_rcu() bug-fix
> commit making use of this PREEMPT_COUNT addition.  This series reduces
> the size of the kernel by almost 100 lines of code and is intended for
> the upcoming v5.10 merge window.

> Thomas Gleixner (13):
>       lib/debug: Remove pointless ARCH_NO_PREEMPT dependencies
>       preempt: Make preempt count unconditional
>       preempt: Cleanup PREEMPT_COUNT leftovers
>       lockdep: Cleanup PREEMPT_COUNT leftovers
>       mm/pagemap: Cleanup PREEMPT_COUNT leftovers
>       locking/bitspinlock: Cleanup PREEMPT_COUNT leftovers
>       uaccess: Cleanup PREEMPT_COUNT leftovers
>       sched: Cleanup PREEMPT_COUNT leftovers
>       ARM: Cleanup PREEMPT_COUNT leftovers
>       xtensa: Cleanup PREEMPT_COUNT leftovers
>       drm/i915: Cleanup PREEMPT_COUNT leftovers
>       rcutorture: Cleanup PREEMPT_COUNT leftovers
>       preempt: Remove PREEMPT_COUNT from Kconfig
> 
> Uladzislau Rezki (Sony) (1):
>       rcu/tree: Allocate a page when caller is preemptible
> 
> kernel test robot (1):
>       kvfree_rcu(): Fix ifnullfree.cocci warnings

>  21 files changed, 44 insertions(+), 136 deletions(-)

Pulled into tip:core/rcu, thanks a lot guys!

	Ingo