Message ID | 20240919094438.10987-4-shivankg@amd.com (mailing list archive) |
---|---|
State | New, archived |
Headers | show
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Received-SPF: Pass (protection.outlook.com: domain of amd.com designates 165.204.84.17 as permitted sender) receiver=protection.outlook.com; client-ip=165.204.84.17; helo=SATLEXMB04.amd.com; pr=C Received: from SATLEXMB04.amd.com (165.204.84.17) by BN1PEPF00004682.mail.protection.outlook.com (10.167.243.88) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.20.7918.13 via Frontend Transport; Thu, 19 Sep 2024 09:45:19 +0000 Received: from kaveri.amd.com (10.180.168.240) by SATLEXMB04.amd.com (10.181.40.145) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2507.39; Thu, 19 Sep 2024 04:45:13 -0500 From: Shivank Garg <shivankg@amd.com> To: <pbonzini@redhat.com>, <corbet@lwn.net>, <akpm@linux-foundation.org>, <willy@infradead.org> CC: <acme@redhat.com>, <namhyung@kernel.org>, <mpe@ellerman.id.au>, <isaku.yamahata@intel.com>, <joel@jms.id.au>, <kvm@vger.kernel.org>, <linux-doc@vger.kernel.org>, <linux-kernel@vger.kernel.org>, <linux-mm@kvack.org>, <linux-fsdevel@vger.kernel.org>, <shivankg@amd.com>, <bharata@amd.com>, <nikunj@amd.com>, Shivansh Dhiman <shivansh.dhiman@amd.com> Subject: [RFC PATCH V2 3/3] KVM: guest_memfd: Enforce NUMA mempolicy if available Date: Thu, 19 Sep 2024 09:44:38 +0000 Message-ID: <20240919094438.10987-4-shivankg@amd.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20240919094438.10987-1-shivankg@amd.com> References: <20240919094438.10987-1-shivankg@amd.com> Precedence: bulk X-Mailing-List: kvm@vger.kernel.org List-Id: <kvm.vger.kernel.org> List-Subscribe: <mailto:kvm+subscribe@vger.kernel.org> List-Unsubscribe: <mailto:kvm+unsubscribe@vger.kernel.org> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Content-Type: text/plain X-ClientProxiedBy: SATLEXMB04.amd.com (10.181.40.145) To SATLEXMB04.amd.com (10.181.40.145) X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: BN1PEPF00004682:EE_|BY5PR12MB4307:EE_ X-MS-Office365-Filtering-Correlation-Id: f510be3e-3ae5-4432-9f83-08dcd88fc63b X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|36860700013|82310400026|7416014|376014|1800799024; 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Add NUMA mempolicy support for KVM guest_memfd
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expand
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diff --git a/virt/kvm/guest_memfd.c b/virt/kvm/guest_memfd.c index 8f1877be4976..8553d7069ba8 100644 --- a/virt/kvm/guest_memfd.c +++ b/virt/kvm/guest_memfd.c @@ -130,12 +130,15 @@ static struct folio *__kvm_gmem_get_folio(struct inode *inode, pgoff_t index, bool allow_huge) { struct folio *folio = NULL; + struct mempolicy *mpol; if (gmem_2m_enabled && allow_huge) folio = kvm_gmem_get_huge_folio(inode, index, PMD_ORDER); - if (!folio) - folio = filemap_grab_folio(inode->i_mapping, index); + if (!folio) { + mpol = (struct mempolicy *)(inode->i_mapping->i_private_data); + folio = filemap_grab_folio_mpol(inode->i_mapping, index, mpol); + } pr_debug("%s: allocate folio with PFN %lx order %d\n", __func__, folio_pfn(folio), folio_order(folio));