[libvirt] [PATCH v2] Improve on virAtomic implementation

Stefan Berger stefanb at linux.vnet.ibm.com
Tue Apr 24 14:09:10 UTC 2012


On 04/20/2012 11:56 AM, Laine Stump wrote:
> On 04/20/2012 06:44 AM, Stefan Berger wrote:
>> This patch improves the previously added virAtomicInt implementation
>> by using gcc-builtins if possible. The needed builtins are available
>> since GCC>= 4.1. At least the 4.0 docs don't mention them.
>>
>> ---
>>   src/util/viratomic.h |   95
>> ++++++++++++++++++++++++++++++++++++++++++---------
>>   1 file changed, 79 insertions(+), 16 deletions(-)
> ACK.
>
> Now we can start thinking about eliminating locking for things that just
> need a refcount :-)
Of which there aren't too many yet... I'll push this one later today. 
Thanks.




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