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From:   Thomas Gleixner <tglx@linutronix.de>
To:     Balbir Singh <sblbir@amazon.com>, mingo@redhat.com
Cc:     peterz@infradead.org, linux-kernel@vger.kernel.org,
        keescook@chromium.org, jpoimboe@redhat.com, tony.luck@intel.com,
        benh@kernel.crashing.org, x86@kernel.org, dave.hansen@intel.com,
        thomas.lendacky@amd.com, torvalds@linux-foundation.org,
        Balbir Singh <sblbir@amazon.com>
Subject: Re: [PATCH v3 1/5] x86/mm: change l1d flush runtime prctl behaviour
In-Reply-To: <20201127065938.8200-2-sblbir@amazon.com>
References: <20201127065938.8200-1-sblbir@amazon.com> <20201127065938.8200-2-sblbir@amazon.com>
Date:   Fri, 04 Dec 2020 22:07:56 +0100
Message-ID: <87r1o59t5f.fsf@nanos.tec.linutronix.de>
MIME-Version: 1.0
Content-Type: text/plain
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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 :)