linux-kernel - [RFC][PATCH 0/3] locking/mutex: Rewrite basic mutex

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Date:   Tue, 23 Aug 2016 14:46:17 +0200
From:   Peter Zijlstra <peterz@...radead.org>
To:     Linus Torvalds <torvalds@...ux-foundation.org>,
        Waiman Long <waiman.long@....com>,
        Jason Low <jason.low2@....com>,
        Ding Tianhong <dingtianhong@...wei.com>,
        Thomas Gleixner <tglx@...utronix.de>,
        Will Deacon <Will.Deacon@....com>,
        Ingo Molnar <mingo@...hat.com>,
        Imre Deak <imre.deak@...el.com>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Davidlohr Bueso <dave@...olabs.net>,
        Tim Chen <tim.c.chen@...ux.intel.com>,
        Terry Rudd <terry.rudd@....com>,
        "Paul E. McKenney" <paulmck@...ibm.com>,
        Jason Low <jason.low2@...com>,
        Peter Zijlstra <peterz@...radead.org>
Subject: [RFC][PATCH 0/3] locking/mutex: Rewrite basic mutex

... might eat your pets and set your house on fire ...

But they seem to boot and build kernels on my x86_64.

---
 arch/alpha/include/asm/mutex.h      |   9 --
 arch/arc/include/asm/mutex.h        |  18 ---
 arch/arm/include/asm/mutex.h        |  21 ---
 arch/arm64/include/asm/Kbuild       |   1 -
 arch/avr32/include/asm/mutex.h      |   9 --
 arch/blackfin/include/asm/Kbuild    |   1 -
 arch/c6x/include/asm/mutex.h        |   6 -
 arch/cris/include/asm/mutex.h       |   9 --
 arch/frv/include/asm/mutex.h        |   9 --
 arch/h8300/include/asm/mutex.h      |   9 --
 arch/hexagon/include/asm/mutex.h    |   8 -
 arch/ia64/include/asm/mutex.h       |  90 -----------
 arch/m32r/include/asm/mutex.h       |   9 --
 arch/m68k/include/asm/Kbuild        |   1 -
 arch/metag/include/asm/Kbuild       |   1 -
 arch/microblaze/include/asm/mutex.h |   1 -
 arch/mips/include/asm/Kbuild        |   1 -
 arch/mn10300/include/asm/mutex.h    |  16 --
 arch/nios2/include/asm/mutex.h      |   1 -
 arch/openrisc/include/asm/mutex.h   |  27 ----
 arch/parisc/include/asm/Kbuild      |   1 -
 arch/powerpc/include/asm/mutex.h    | 132 ---------------
 arch/s390/include/asm/mutex.h       |   9 --
 arch/score/include/asm/mutex.h      |   6 -
 arch/sh/include/asm/mutex-llsc.h    | 109 -------------
 arch/sh/include/asm/mutex.h         |  12 --
 arch/sparc/include/asm/Kbuild       |   1 -
 arch/tile/include/asm/Kbuild        |   1 -
 arch/um/include/asm/Kbuild          |   1 -
 arch/unicore32/include/asm/mutex.h  |  20 ---
 arch/x86/include/asm/mutex.h        |   5 -
 arch/x86/include/asm/mutex_32.h     | 110 -------------
 arch/x86/include/asm/mutex_64.h     | 127 ---------------
 arch/xtensa/include/asm/mutex.h     |   9 --
 include/asm-generic/mutex-dec.h     |  88 ----------
 include/asm-generic/mutex-null.h    |  19 ---
 include/asm-generic/mutex-xchg.h    | 120 --------------
 include/asm-generic/mutex.h         |   9 --
 include/linux/mutex-debug.h         |  24 ---
 include/linux/mutex.h               |  44 +++--
 kernel/Kconfig.locks                |   2 +-
 kernel/locking/mutex-debug.c        |  13 --
 kernel/locking/mutex-debug.h        |  10 --
 kernel/locking/mutex.c              | 311 +++++++++++++++---------------------
 kernel/locking/mutex.h              |  26 ---
 kernel/sched/core.c                 |   2 +-
 46 files changed, 160 insertions(+), 1298 deletions(-)