On Sunday 04 February 2007 00:49, Maynard Johnson wrote:
> I seem to recall looking at this option a while back, but didn't go that
> route since struct spu_context is opaque to me. With such a teqnique, I
> could then use a simple 16-element array of pointers to cached_info
> objects, creating them as needed when spu_context->profile_private is
> NULL. I suppose the better option for now is to add a
> get_profile_private() function to SPUFs, rather than requiring
> spu_context to be visible.
Yes, that sounds good. Note that the file providing the
spufs_get_profile_private (and respective spufs_set_profile_private)
functions needs to be compiled into the kernel then in case oprofile
gets linked in but spufs is a module.
I think it would also be necessary to have another interface for cleaning
up this data when spufs destroys the context. That could possibly
a variation of the existing notifier call, or a new call, or you
establish the convention that if the private pointer is non-NULL,
spufs will kfree it.
Arnd <><
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