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Shenoy" , K Prateek Nayak Subject: [PATCH v3 4/8] sched/topology: Remove sched_domain_shared allocation with sd_data Date: Tue, 20 Jan 2026 11:32:42 +0000 Message-ID: <20260120113246.27987-5-kprateek.nayak@amd.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20260120113246.27987-1-kprateek.nayak@amd.com> References: <20260120113246.27987-1-kprateek.nayak@amd.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-ClientProxiedBy: satlexmb08.amd.com (10.181.42.217) To satlexmb07.amd.com (10.181.42.216) X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: BL02EPF00021F6D:EE_|DM4PR12MB7742:EE_ X-MS-Office365-Filtering-Correlation-Id: f29ae199-a996-4b47-2137-08de5817dbe1 X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|7416014|36860700013|376014|1800799024|82310400026; X-Microsoft-Antispam-Message-Info: =?us-ascii?Q?wm8F3hHaDj8o4uCnZoEHgWdIeZpcK/pLatSWHBFEhEsl24QTvuviIFkKP8QT?= =?us-ascii?Q?8C7HRt8uLnHJe+ALAW6zHmSoaV8GcNSwubygGo8gzg5B+zPoUQMdigNPHE2D?= =?us-ascii?Q?Itqsg3gjVKLC+V/oiRUXZwBG246aVhPbYWSV8+crBywpRXKo52QAg7FMOguC?= =?us-ascii?Q?9oIrvvYCnwQa+97BKPL0LOnYjSuzsR/zLPndV32NNXjjy2wmw/49aWU8lPhW?= =?us-ascii?Q?YC0SvKv2D4DCtUvjx/rSuZN0n39+cANhD2yeb0dXmKat9gMUq3p4XpviU/uv?= =?us-ascii?Q?bkdnKdocnKyFfsu1ynVHxhkQj93OqynNi9srRYiFEC0HmKCvC+qRpsLlSrOQ?= =?us-ascii?Q?YIaBE5hhi8ztvWgurTlDrkj7CW0iOz4raE2AWwPWbE+XsEnoPzm4FIn6GPjS?= =?us-ascii?Q?DQbdq2fkQO4yKipkUf42Mt48keX7eI7houfjeplqvli8nVT5nI5CxMxb2pUL?= =?us-ascii?Q?FZvSnwIQbDXjjZwCXJvusjUQ9QObWlPrOrmfF5yglkBGApQ/3riLIt2qmgrG?= =?us-ascii?Q?BpZ+b8QxOr2Hmz5E+1gU0a0L7v0ZA1h3MlmtDn6bSYmwNYyKl1HP2a8txw9m?= =?us-ascii?Q?p0e3ctPX+viJttf9z902zIcKYx09I89eGH/nj9eKxrpGHVmEVt0gENKvcX0j?= =?us-ascii?Q?5L1WYTVBu5KElqO3qN0BMm+sEcFPVg+14svq/NOPwLTNeGkrk+D8VxkyIge8?= =?us-ascii?Q?lsxVghBvLYwUZy/htuPONSXZMOxzodrnudkbpxEekS1kN8j9D9ldxspHam5N?= =?us-ascii?Q?WdQ4wSJwOGcc93nOuQ0f21jkx8SU/43F//kcK8K12wbUo8MbOwSCOzNXGeiH?= =?us-ascii?Q?DSzB+MYaCoAueRm4sBnw8KSWx1ZhSbF23h9HfdRKZYgstSsMDh5EDUjZ5+js?= =?us-ascii?Q?UH4PFPgKb+RauqG66Ox4j6/xX9bbV0JLfnKe/h0SBF+nhJXOUdBbhN+NZ/OK?= =?us-ascii?Q?cgWsZOiyjSBW/5E+K5YBFzbqqQ+cgZsH3ovE3tL2n3quLaAPJd4S/arBt4AI?= =?us-ascii?Q?ZAC8QVZkx+22ZE1jocj0aDUHPMQIBWjAh1ga+8X1ZMOGWxwN6CLapCtNxmaw?= =?us-ascii?Q?arRaHh0OK1Aa1GBBXEkHiGeQ0nZbGyoee2W/v4sJ0/r3c2ndFrRjYLTMRJRJ?= =?us-ascii?Q?uW3+NCiMf5Wt4feMWdlHr0C5eLjvZA3H56EjiW7qw0oiaTLLiI4gP26EMTnT?= =?us-ascii?Q?Gv/zu0195cd9zoJUIWuTFv9DfCY6D0SHRUNVO83UUg+tJaesRVEvahGIS7ST?= =?us-ascii?Q?DJeeH9zIrvUluM5ssW/hx+poaXtXeYYDDl8ZEnKOlAMx0+swkqynHLmm2Ci4?= =?us-ascii?Q?zIZMtRnux2dJLxf2Lp8zc+XZbrnmr83BWVab8W4+XVXJm3ppXY8F/wGHCW4I?= =?us-ascii?Q?HWeQKZzc2hpbiHZ31hpGwWeqcKneRg53X3nN0odMoBzxZhVAr4VKXp26O355?= =?us-ascii?Q?U7FOOsC9ymfgj5opZNjQPokdloinhMuOnSsJpq3db6cEtg3D+sBMtJE9PioZ?= =?us-ascii?Q?qZuH7As2VlYDnTHOE/xy0fRtkfwMIVwc20sdLm4L/EGl1TA0S4eMNYFqD66b?= =?us-ascii?Q?hriUgnmZWevTcoTFCDIL7hC2LY05G/z2dxYzDl08YY503WrRu9sSQU26wUAq?= =?us-ascii?Q?CcDyN2JrzdEl4G+H4nS52w5GtPkRiWqTnQChxawgRjsGAvBGaYeM0ttTAxVy?= =?us-ascii?Q?6Vpivq6rL/cD0LQJCzRF6Gatz2w=3D?= X-Forefront-Antispam-Report: CIP:165.204.84.17;CTRY:US;LANG:en;SCL:1;SRV:;IPV:NLI;SFV:NSPM;H:satlexmb07.amd.com;PTR:InfoDomainNonexistent;CAT:NONE;SFS:(13230040)(7416014)(36860700013)(376014)(1800799024)(82310400026);DIR:OUT;SFP:1101; X-OriginatorOrg: amd.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 20 Jan 2026 11:34:22.9199 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: f29ae199-a996-4b47-2137-08de5817dbe1 X-MS-Exchange-CrossTenant-Id: 3dd8961f-e488-4e60-8e11-a82d994e183d X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=3dd8961f-e488-4e60-8e11-a82d994e183d;Ip=[165.204.84.17];Helo=[satlexmb07.amd.com] X-MS-Exchange-CrossTenant-AuthSource: BL02EPF00021F6D.namprd02.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: DM4PR12MB7742 Content-Type: text/plain; charset="utf-8" Now that "sd->shared" assignments are using the sched_domain_shared objects allocated with s_data, remove the sd_data based allocations. Signed-off-by: K Prateek Nayak Reviewed-by: Valentin Schneider --- Changelog rfc v2..v3: o Broke off from a single large patch. Previously https://lore.kernel.org/lkml/20251208092744.32737-3-kprateek.nayak@amd.co= m/ --- include/linux/sched/topology.h | 1 - kernel/sched/topology.c | 19 ------------------- 2 files changed, 20 deletions(-) diff --git a/include/linux/sched/topology.h b/include/linux/sched/topology.h index 45c0022b91ce..fc3d89160513 100644 --- a/include/linux/sched/topology.h +++ b/include/linux/sched/topology.h @@ -171,7 +171,6 @@ typedef int (*sched_domain_flags_f)(void); =20 struct sd_data { struct sched_domain *__percpu *sd; - struct sched_domain_shared *__percpu *sds; struct sched_group *__percpu *sg; struct sched_group_capacity *__percpu *sgc; }; diff --git a/kernel/sched/topology.c b/kernel/sched/topology.c index 0f56462fef6f..cba91f20b4e0 100644 --- a/kernel/sched/topology.c +++ b/kernel/sched/topology.c @@ -1597,9 +1597,6 @@ static void claim_allocations(int cpu, struct sched_d= omain *sd) WARN_ON_ONCE(*per_cpu_ptr(sdd->sd, cpu) !=3D sd); *per_cpu_ptr(sdd->sd, cpu) =3D NULL; =20 - if (atomic_read(&(*per_cpu_ptr(sdd->sds, cpu))->ref)) - *per_cpu_ptr(sdd->sds, cpu) =3D NULL; - if (atomic_read(&(*per_cpu_ptr(sdd->sg, cpu))->ref)) *per_cpu_ptr(sdd->sg, cpu) =3D NULL; =20 @@ -2377,10 +2374,6 @@ static int __sdt_alloc(const struct cpumask *cpu_map) if (!sdd->sd) return -ENOMEM; =20 - sdd->sds =3D alloc_percpu(struct sched_domain_shared *); - if (!sdd->sds) - return -ENOMEM; - sdd->sg =3D alloc_percpu(struct sched_group *); if (!sdd->sg) return -ENOMEM; @@ -2391,7 +2384,6 @@ static int __sdt_alloc(const struct cpumask *cpu_map) =20 for_each_cpu(j, cpu_map) { struct sched_domain *sd; - struct sched_domain_shared *sds; struct sched_group *sg; struct sched_group_capacity *sgc; =20 @@ -2402,13 +2394,6 @@ static int __sdt_alloc(const struct cpumask *cpu_map) =20 *per_cpu_ptr(sdd->sd, j) =3D sd; =20 - sds =3D kzalloc_node(sizeof(struct sched_domain_shared), - GFP_KERNEL, cpu_to_node(j)); - if (!sds) - return -ENOMEM; - - *per_cpu_ptr(sdd->sds, j) =3D sds; - sg =3D kzalloc_node(sizeof(struct sched_group) + cpumask_size(), GFP_KERNEL, cpu_to_node(j)); if (!sg) @@ -2450,8 +2435,6 @@ static void __sdt_free(const struct cpumask *cpu_map) kfree(*per_cpu_ptr(sdd->sd, j)); } =20 - if (sdd->sds) - kfree(*per_cpu_ptr(sdd->sds, j)); if (sdd->sg) kfree(*per_cpu_ptr(sdd->sg, j)); if (sdd->sgc) @@ -2459,8 +2442,6 @@ static void __sdt_free(const struct cpumask *cpu_map) } free_percpu(sdd->sd); sdd->sd =3D NULL; - free_percpu(sdd->sds); - sdd->sds =3D NULL; free_percpu(sdd->sg); sdd->sg =3D NULL; free_percpu(sdd->sgc); --=20 2.34.1