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Date:   Sat, 16 May 2020 10:18:45 -0700
From:   "Paul E. McKenney" <>
To:     Thomas Gleixner <>
Cc:     LKML <>,,
        Andy Lutomirski <>,
        Alexandre Chartre <>,
        Frederic Weisbecker <>,
        Paolo Bonzini <>,
        Sean Christopherson <>,
        Masami Hiramatsu <>,
        Petr Mladek <>,
        Steven Rostedt <>,
        Joel Fernandes <>,
        Boris Ostrovsky <>,
        Juergen Gross <>,
        Brian Gerst <>,
        Mathieu Desnoyers <>,
        Josh Poimboeuf <>,
        Will Deacon <>,
        Tom Lendacky <>,
        Wei Liu <>,
        Michael Kelley <>,
        Jason Chen CJ <>,
        Zhao Yakui <>,
        "Peter Zijlstra (Intel)" <>
Subject: Re: [patch V6 00/37] x86/entry: Rework leftovers and merge plan

On Sat, May 16, 2020 at 01:45:47AM +0200, Thomas Gleixner wrote:

[ . . . ]

>   - noinstr-rcu-nmi-2020-05-15
>     Based on the core/rcu branch in the tip tree. It has merged in
>     noinstr-lds-2020-05-15 and contains the nmi_enter/exit() changes along
>     with the noinstr section changes on top.
>     This tag is intended to be pulled by Paul into his rcu/next branch so
>     he can sort the conflicts and base further work on top.

And this sorting process is now allegedly complete and available on the
-rcu tree's "dev" branch.  As you might have guessed, the major source
of conflicts were with Joel's patches, including one conflict that was
invisible to "git rebase":

1b2530e7d0c3 ("Revert b8c17e6664c4 ("rcu: Maintain special bits at bottom of ->dynticks counter")
03f31532d0ce ("rcu/tree: Add better tracing for dyntick-idle")
a309d5ce2335 ("rcu/tree: Clean up dynticks counter usage")
5c6e734fbaeb ("rcu/tree: Remove dynticks_nmi_nesting counter")

This passes modest rcutorture testing.  So far, so good!  ;-)

							Thanx, Paul

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