linux-kernel - Re: [RFC PATCH v2 4/4] arch/x86: L1D flush, optimize the context switch

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Message-ID: <a0926f775b8cba31218602c3a8ba932ca5017334.camel@amazon.com>
Date:   Wed, 25 Mar 2020 07:15:01 +0000
From:   "Singh, Balbir" <sblbir@...zon.com>
To:     "tglx@...utronix.de" <tglx@...utronix.de>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
CC:     "keescook@...omium.org" <keescook@...omium.org>,
        "tony.luck@...el.com" <tony.luck@...el.com>,
        "benh@...nel.crashing.org" <benh@...nel.crashing.org>,
        "x86@...nel.org" <x86@...nel.org>,
        "dave.hansen@...el.com" <dave.hansen@...el.com>
Subject: Re: [RFC PATCH v2 4/4] arch/x86: L1D flush, optimize the context
 switch

On Wed, 2020-03-25 at 18:11 +1100, Balbir Singh wrote:
> Use a static branch/jump label to optimize the code. Right now
> we don't ref count the users, but that could be done if needed
> in the future.
> 
> Signed-off-by: Balbir Singh <sblbir@...zon.com>
> 

I sent an older version of the patch, here is the updated version

Balbir Singh



View attachment "v2-0004-arch-x86-L1D-flush-optimize-the-context-switch.patch" of type "text/x-patch" (3493 bytes)