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From: Jason Low <jason.low2@hpe.com>
To: Peter Zijlstra <peterz@infradead.org>, Ingo Molnar <mingo@redhat.com>
Cc: linux-kernel@vger.kernel.org, Andrew Morton <akpm@linux-foundation.org>,
        Linus Torvalds <torvalds@linux-foundation.org>,
        Tony Luck <tony.luck@intel.com>, Fenghua Yu <fenghua.yu@intel.com>,
        Martin Schwidefsky <schwidefsky@de.ibm.com>,
        Terry Rudd <terry.rudd@hpe.com>,
        Heiko Carstens <heiko.carstens@de.ibm.com>,
        Thomas Gleixner <tglx@linutronix.de>,
        Davidlohr Bueso <dave@stgolabs.net>, Waiman Long <Waiman.Long@hpe.com>,
        Tim Chen <tim.c.chen@linux.intel.com>,
        Peter Hurley <peter@hurleysoftware.com>, Jason Low <jason.low2@hp.com>
Subject: [PATCH v2 0/2] locking/rwsem: Convert rwsem count to atomic_long_t
Date: Fri,  3 Jun 2016 22:26:01 -0700
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v1->v2:
- Also convert sem->count usages in arch/{alph,ia64}/include/asm/rwsem.h
  to be used as atomic_long_t.

- Merge the patches to remove rwsem_atomic_add() and rwsem_atomic_update()
  across the various architectures into one patch.

This series converts the rwsem count variable to an atomic_long_t
since it is used it as an atomic variable. This allows us to also remove
the rwsem_atomic_{add,update} abstraction and reduce 100+ lines of code.

Jason Low (2):
  locking/rwsem: Convert sem->count to atomic_long_t
  Remove rwsem_atomic_add() and rwsem_atomic_update()

 arch/alpha/include/asm/rwsem.h | 68 ++++++++----------------------------------
 arch/ia64/include/asm/rwsem.h  | 31 ++++++++-----------
 arch/s390/include/asm/rwsem.h  | 37 -----------------------
 arch/x86/include/asm/rwsem.h   | 18 -----------
 include/asm-generic/rwsem.h    | 22 ++------------
 include/linux/rwsem.h          |  6 ++--
 kernel/locking/rwsem-xadd.c    | 32 ++++++++++----------
 7 files changed, 48 insertions(+), 166 deletions(-)

-- 
2.1.4