Sharing textures with OpenCL (on NVidia) (avoiding glFinish/clFinish)

Currently to pass a texture (or renderbuffer) to OpenCL for some fast crunching on the GPU, and to pass the result back to OpenGL on NVidia, I’m doing:

[list=1]

<< generate with OpenGL >>

glFinish()

clEnqueueAcquireGLObjects()

<< crunch with OpenCL >>

clEnqueueReleaseGLObjects()

clFinish()

<< process with OpenGL >>

Is there a faster method of synchronization than glFinish()/clFinish() currently supported on NVidia?

Any word on when ARB_cl_event will be supported on NVidia?

(Usage example: here on Slide 37)

Thanks.

That is how I read it. I am interested if people know better