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Re: [Qemu-devel] [PATCH v4 0/7] trace: Generic event state description

From: Stefan Hajnoczi
Subject: Re: [Qemu-devel] [PATCH v4 0/7] trace: Generic event state description
Date: Mon, 11 Jun 2012 13:01:56 +0100

On Mon, Jun 11, 2012 at 12:12 PM, Lluís Vilanova <address@hidden> wrote:
> Stefan Hajnoczi writes:
>> On Tue, May 8, 2012 at 3:38 PM, Lluís Vilanova <address@hidden> wrote:
>>> Provides a generic event state description and a more detailed event 
>>> control and
>>> query interface.
>>> Signed-off-by: Lluís Vilanova <address@hidden>
>>> ---
> [...]
>> What is the point of sstate vs dstate?  It seems the dynamic state is
>> what can be toggled and sstate is the "disable" keyword.  Why have
>> sstate since there is already a macro?
> 'sstate' is there just in case you query the tracing state of an event through
> the 'TraceEvent' structure instead of through the corresponding macro.

If this is not used by a tracer today we should hold off until it's needed.


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