Re: [PATCH v2 00/14] perf, persistent: Kernel updates for perf toolintegration

[Borislav Petkov]

On Wed, Jun 26, 2013 at 10:12:23AM +0200, Robert Richter wrote:
> We get a new fd by opening the persistent event with the syscall.
> There would be 2 new ioctls:
> 
>  ioctl(fd, PERF_EVENT_IOC_DETACH, 0);
>  ioctl(fd, PERF_EVENT_IOC_ATTACH, 0);
> 
> This would be fine and reuses existing infrastructure.

Well, how are you going to say that you want to open an already existing
persistent event or your want to create exactly the same persistent
event? Are we even going to allow identical persistent events to
coexist?

The answers to those questions gives us the implementation.

-- 
Regards/Gruss,
    Boris.

Sent from a fat crate under my desk. Formatting is fine.
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