Messages in this thread | | | Date | Tue, 19 May 2015 10:35:32 -0500 (CDT) | From | Christoph Lameter <> | Subject | Re: [GIT PULL] ring-buffer: Replace this_cpu_*() with __this_cpu_*() |
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On Thu, 19 Mar 2015, Steven Rostedt wrote:
> On Thu, 19 Mar 2015 15:16:25 -0700 > Linus Torvalds <torvalds@linux-foundation.org> wrote: > > > So I don't think the ring-buffer change is necessarily _wrong_, but if > > this is a performance issue, why don't we just fix it up for the > > generic case rather than for just one user? > > I totally agree with your analysis, but it's up to Christoph to come up > with an answer to your questions.
Something beyond: Do not use this_cpu_* when preemption is already off but use __this_cpu_*?
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