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Wed, 20 Nov 2019 06:38:47 +0000 From: Jisheng Zhang To: Thomas Gleixner , "Peter Zijlstra (Intel)" CC: "linux-kernel@vger.kernel.org" Subject: [PATCH] watchdog: Remove soft_lockup_hrtimer_cnt and related code Thread-Topic: [PATCH] watchdog: Remove soft_lockup_hrtimer_cnt and related code Thread-Index: AQHVn20pt1bfgUsCsEeZCjfgrKg0kw== Date: Wed, 20 Nov 2019 06:38:47 +0000 Message-ID: <20191120142522.0e82c985@xhacker.debian> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-originating-ip: [124.74.246.114] x-clientproxiedby: TY1PR01CA0198.jpnprd01.prod.outlook.com (2603:1096:403::28) To BYAPR03MB4773.namprd03.prod.outlook.com (2603:10b6:a03:139::21) authentication-results: spf=none (sender IP is ) smtp.mailfrom=Jisheng.Zhang@synaptics.com; x-ms-exchange-messagesentrepresentingtype: 1 x-mailer: Claws Mail 3.17.4 (GTK+ 2.24.32; x86_64-pc-linux-gnu) x-ms-publictraffictype: Email x-ms-office365-filtering-correlation-id: 0d990f83-467e-435e-febb-08d76d844bed x-ms-traffictypediagnostic: BYAPR03MB4648: x-microsoft-antispam-prvs: x-ms-oob-tlc-oobclassifiers: OLM:72; 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charset="us-ascii" Content-ID: Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 X-OriginatorOrg: synaptics.com X-MS-Exchange-CrossTenant-Network-Message-Id: 0d990f83-467e-435e-febb-08d76d844bed X-MS-Exchange-CrossTenant-originalarrivaltime: 20 Nov 2019 06:38:47.5912 (UTC) X-MS-Exchange-CrossTenant-fromentityheader: Hosted X-MS-Exchange-CrossTenant-id: 335d1fbc-2124-4173-9863-17e7051a2a0e X-MS-Exchange-CrossTenant-mailboxtype: HOSTED X-MS-Exchange-CrossTenant-userprincipalname: J+HS2rclZN28y8vhyOTSnO4mzx1t4N6CE3LfsQeO2R+zju22thOx423G4iKDz3j1N7UrfNc+bSXRmXCMN/hT4A== X-MS-Exchange-Transport-CrossTenantHeadersStamped: BYAPR03MB4648 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org After commit 9cf57731b63e ("watchdog/softlockup: Replace "watchdog/%u" threads with cpu_stop_work"), the percpu soft_lockup_hrtimer_cnt is not used any more, so remove it and related code. Signed-off-by: Jisheng Zhang --- kernel/watchdog.c | 3 --- 1 file changed, 3 deletions(-) diff --git a/kernel/watchdog.c b/kernel/watchdog.c index f41334ef0971..0621301ae8cf 100644 --- a/kernel/watchdog.c +++ b/kernel/watchdog.c @@ -173,7 +173,6 @@ static DEFINE_PER_CPU(struct hrtimer, watchdog_hrtimer)= ; static DEFINE_PER_CPU(bool, softlockup_touch_sync); static DEFINE_PER_CPU(bool, soft_watchdog_warn); static DEFINE_PER_CPU(unsigned long, hrtimer_interrupts); -static DEFINE_PER_CPU(unsigned long, soft_lockup_hrtimer_cnt); static DEFINE_PER_CPU(struct task_struct *, softlockup_task_ptr_saved); static DEFINE_PER_CPU(unsigned long, hrtimer_interrupts_saved); static unsigned long soft_lockup_nmi_warn; @@ -350,8 +349,6 @@ static DEFINE_PER_CPU(struct cpu_stop_work, softlockup_= stop_work); */ static int softlockup_fn(void *data) { - __this_cpu_write(soft_lockup_hrtimer_cnt, - __this_cpu_read(hrtimer_interrupts)); __touch_watchdog(); complete(this_cpu_ptr(&softlockup_completion)); =20 --=20 2.24.0