linux-kernel - [PATCH -v3 00/10] locking/mutex: Rewrite basic mutex

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Date:   Mon, 05 Sep 2016 14:36:36 +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: [PATCH -v3 00/10] locking/mutex: Rewrite basic mutex

Hi,

New version, with improved Changelogs and bits. This version has survived aim7
loads on my 2 socket machine, I've yet to try the 4 socket. But over-all it
seem to behave as expected.

That is, all except the last patch, which I just wrote and hasn't even seen a
compiler up close.


---
 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/atomic-llsc.h        |   2 +-
 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 -
 drivers/gpu/drm/i915/i915_gem_shrinker.c |  26 +-
 drivers/gpu/drm/msm/msm_gem_shrinker.c   |  23 +-
 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                    |  46 ++-
 kernel/Kconfig.locks                     |   2 +-
 kernel/locking/mutex-debug.c             |  13 -
 kernel/locking/mutex-debug.h             |  10 -
 kernel/locking/mutex.c                   | 589 ++++++++++++++++++-------------
 kernel/locking/mutex.h                   |  26 --
 kernel/sched/core.c                      |   2 +-
 49 files changed, 382 insertions(+), 1407 deletions(-)