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Date: Wed, 8 Aug 2012 17:05:29 +0800
From: =?utf-8?B?6Zmz6Z+L5Lu7IChXZWktUmVuIENoZW4p?= <chenwj@iis.sinica.edu.tw>
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Subject: Re: [Qemu-devel] [PATCH 01/15] atomic: introduce atomic operations
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To: Avi Kivity <avi@redhat.com>
Cc: kvm@vger.kernel.org, Jan Kiszka <jan.kiszka@siemens.com>, Marcelo Tosatti <mtosatti@redhat.com>, Liu Ping Fan <qemulist@gmail.com>, qemu-devel@nongnu.org, Blue Swirl <blauwirbel@gmail.com>, Anthony Liguori <anthony@codemonkey.ws>, Stefan Hajnoczi <stefanha@gmail.com>, Paolo Bonzini <pbonzini@redhat.com>, Andreas =?utf-8?B?RumFumJlcg==?= <afaerber@suse.de>

> I propose we use gcc builtins.  We get automatic architecture support,
> and tuning for newer processors if the user so chooses.
>=20
> http://gcc.gnu.org/onlinedocs/gcc-4.1.2/gcc/Atomic-Builtins.html
>=20
> In May 2031 we can switch to C11 atomics.
         ^^^^
  Maybe 2013?

--=20
Wei-Ren Chen (=E9=99=B3=E9=9F=8B=E4=BB=BB)
Computer Systems Lab, Institute of Information Science,
Academia Sinica, Taiwan (R.O.C.)
Tel:886-2-2788-3799 #1667
Homepage: http://people.cs.nctu.edu.tw/~chenwj