Re: [PATCH v3 1/5] x86/mm: change l1d flush runtime prctl behaviour

Thomas Gleixner
2020-12-04T21:08:55Z

On Fri, Nov 27 2020 at 17:59, Balbir Singh wrote:

> Detection of task affinities at API opt-in time is not the best
> approach, the approach is to kill the task if it runs on a
> SMT enable core. This is better than not flushing the L1D cache
> when the task switches from a non-SMT core to an SMT enabled core.
>
> Signed-off-by: Balbir Singh <sblbir@amazon.com>
> ---
> arch/x86/include/asm/processor.h | 2 ++
> arch/x86/kernel/smpboot.c | 11 ++++++++++-
> 2 files changed, 12 insertions(+), 1 deletion(-)

Subject, changelog match but patch content not so much :)