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Re: [RFC PATCH 00/15] Provide atomics and bitops implemented with ISO C++11 atomics

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On Wed, May 18, 2016 at 04:10:37PM +0100, David Howells wrote:
>  (3) I've added cmpxchg_return() and try_cmpxchg() to replace cmpxchg().
>      I've also provided atomicX_t variants of these.  These return the
>      boolean return value from the __atomic_compare_exchange_n() function
>      (which is carried in the Z flag on x86).  Should this be rolled out
>      even without the ISO atomic implementation?

I suppose we could, esp. with GCC-6.1 having cc-output using the Z flag
should result in nicer code.

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[RFC PATCH 00/15] Provide atomics and bitops implemented with ISO  C++11 atomics David Howells <dhowells@redhat.com> - 2016-05-18 17:20 +0200
  [RFC PATCH 06/15] Provide 16-bit ISO atomics David Howells <dhowells@redhat.com> - 2016-05-18 17:20 +0200
    Re: [RFC PATCH 06/15] Provide 16-bit ISO atomics Peter Zijlstra <peterz@infradead.org> - 2016-05-18 19:30 +0200
  [RFC PATCH 15/15] x86: Fix misc cmpxchg() and atomic_cmpxchg()  calls to use try/return variants David Howells <dhowells@redhat.com> - 2016-05-18 17:20 +0200
  [RFC PATCH 12/15] x86: Use ISO xchg(), cmpxchg() and friends David Howells <dhowells@redhat.com> - 2016-05-18 17:20 +0200
  [RFC PATCH 14/15] x86: Make the mutex implementation use ISO atomic  ops David Howells <dhowells@redhat.com> - 2016-05-18 17:20 +0200
  [RFC PATCH 13/15] x86: Improve spinlocks using ISO C++11 intrinsic  atomics David Howells <dhowells@redhat.com> - 2016-05-18 17:20 +0200
    Re: [RFC PATCH 13/15] x86: Improve spinlocks using ISO C++11  intrinsic atomics Peter Zijlstra <peterz@infradead.org> - 2016-05-18 19:40 +0200
  [RFC PATCH 07/15] Provide cmpxchg(), xchg(),  xadd() and __add() based on ISO C++11 intrinsics David Howells <dhowells@redhat.com> - 2016-05-18 17:20 +0200
  [RFC PATCH 04/15] Convert 32-bit ISO atomics into a template David Howells <dhowells@redhat.com> - 2016-05-18 17:20 +0200
  Re: [RFC PATCH 00/15] Provide atomics and bitops implemented with  ISO C++11 atomics Peter Zijlstra <peterz@infradead.org> - 2016-05-18 19:30 +0200
  Re: [RFC PATCH 00/15] Provide atomics and bitops implemented with  ISO C++11 atomics Peter Zijlstra <peterz@infradead.org> - 2016-05-18 19:50 +0200
  Re: [RFC PATCH 00/15] Provide atomics and bitops implemented with  ISO C++11 atomics Peter Zijlstra <peterz@infradead.org> - 2016-05-18 20:10 +0200
  Re: [RFC PATCH 00/15] Provide atomics and bitops implemented with  ISO C++11 atomics "Paul E. McKenney" <paulmck@linux.vnet.ibm.com> - 2016-05-19 02:30 +0200

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