Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67;
From:   Nadav Amit <namit@vmware.com>
To:     Peter Zijlstra <peterz@infradead.org>
CC:     Ingo Molnar <mingo@redhat.com>,
        LKML <linux-kernel@vger.kernel.org>, X86 ML <x86@kernel.org>,
        "H. Peter Anvin" <hpa@zytor.com>,
        Thomas Gleixner <tglx@linutronix.de>,
        Borislav Petkov <bp@alien8.de>,
        Dave Hansen <dave.hansen@linux.intel.com>,
        Andy Lutomirski <luto@kernel.org>,
        Kees Cook <keescook@chromium.org>,
        Dave Hansen <dave.hansen@intel.com>,
        Masami Hiramatsu <mhiramat@kernel.org>
Subject: Re: [PATCH v4 09/10] x86/jump-label: remove support for custom poker
Thread-Topic: [PATCH v4 09/10] x86/jump-label: remove support for custom poker
Thread-Index: AQHUeYjk7FAtWS1/GUKZtF+dnLuv0qVKrQKAgABa9oA=
Date:   Sun, 11 Nov 2018 20:31:29 +0000
Message-ID: <24530A8D-6646-4746-8056-8C1D7CF4ED69@vmware.com>
References: <20181110231732.15060-1-namit@vmware.com>
 <20181110231732.15060-10-namit@vmware.com> <20181111150553.GB3021@worktop>
In-Reply-To: <20181111150553.GB3021@worktop>
Accept-Language: en-US
Content-Language: en-US
received-spf: None (protection.outlook.com: vmware.com does not designate
 permitted sender hosts)
spamdiagnosticoutput: 1:99
spamdiagnosticmetadata: NSPM
Content-Type: text/plain; charset="us-ascii"
Content-ID: <387EB33F13153F4A8A7A7515721DA3B4@namprd05.prod.outlook.com>
Content-Transfer-Encoding: quoted-printable
MIME-Version: 1.0
X-MS-Exchange-CrossTenant-Network-Message-Id: bdc38c3d-a2b4-40a1-4840-08d64814a97d
X-MS-Exchange-CrossTenant-originalarrivaltime: 11 Nov 2018 20:31:29.5859
 (UTC)
X-MS-Exchange-CrossTenant-fromentityheader: Hosted
X-MS-Exchange-CrossTenant-id: b39138ca-3cee-4b4a-a4d6-cd83d9dd62f0
X-MS-Exchange-Transport-CrossTenantHeadersStamped: BYAPR05MB4968
Sender: linux-kernel-owner@vger.kernel.org
Precedence: bulk
List-ID: <linux-kernel.vger.kernel.org>
X-Mailing-List: linux-kernel@vger.kernel.org

From: Peter Zijlstra
Sent: November 11, 2018 at 3:05:53 PM GMT
> To: Nadav Amit <namit@vmware.com>
> Cc: Ingo Molnar <mingo@redhat.com>, linux-kernel@vger.kernel.org, x86@ker=
nel.org, H. Peter Anvin <hpa@zytor.com>, Thomas Gleixner <tglx@linutronix.d=
e>, Borislav Petkov <bp@alien8.de>, Dave Hansen <dave.hansen@linux.intel.co=
m>, Andy Lutomirski <luto@kernel.org>, Kees Cook <keescook@chromium.org>, D=
ave Hansen <dave.hansen@intel.com>, Masami Hiramatsu <mhiramat@kernel.org>
> Subject: Re: [PATCH v4 09/10] x86/jump-label: remove support for custom p=
oker
>=20
>=20
> On Sat, Nov 10, 2018 at 03:17:31PM -0800, Nadav Amit wrote:
>> There are only two types of poking: early and breakpoint based. The use
>> of a function pointer to perform poking complicates the code and is
>> probably inefficient due to the use of indirect branches.
>=20
> Right; we used to have a 3rd way, but that is long gone.
>=20
> Nice cleanup!

Thanks, but I actually should have got rid of the early_poking variable.
I will do it for v5.