| Date | Wed, 30 Oct 2013 16:51:16 +0100 | From | Peter Zijlstra <> | Subject | Re: perf events ring buffer memory barrier on powerpc |
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On Wed, Oct 30, 2013 at 03:28:54PM +0200, Victor Kaplansky wrote: > one of the authors of Documentation/memory-barriers.txt is on cc: list ;-) > > Disclaimer: it is anyway impossible to prove lack of *any* problem. > > Having said that, lets look into an example in > Documentation/circular-buffers.txt:
> > We can see that authors of the document didn't put any memory barrier
Note that both documents have the same author list ;-)
Anyway, I didn't know about the circular thing, I suppose I should use CIRC_SPACE() thing :-)
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