On Thu, May 05, 2016 at 04:03:59PM -0700, Andi Kleen wrote:
> From: Andi Kleen <a...@linux.intel.com>
> 
> Add a way to show different sysfs events attributes depending on
> HyperThreading is on or off. This is difficult to determine
> early at boot, so we just do it dynamically when the sysfs
> attribute is read.
> 
> v2:
> Compute HT status only once in CPU online/offline hooks.
> v3: Use topology_max_smt_threads()
> Signed-off-by: Andi Kleen <a...@linux.intel.com>
> ---
>  arch/x86/events/core.c       | 24 ++++++++++++++++++++++++
>  arch/x86/events/perf_event.h | 14 ++++++++++++++
>  include/linux/perf_event.h   |  7 +++++++
>  3 files changed, 45 insertions(+)
> 

Should this not now live in /sys/devices/system/cpu/ ? Thomas?

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