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X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-MessageData-0: =?us-ascii?Q?B5JAhH5UTO8t0pnbBJS+pJIUq7qWu4+0+QPlcMV/PpgHie+67c1Q5YeHv20X?= =?us-ascii?Q?0DylUfU8DauJNeK4ywV/SHJ2jpdbW+TeojXJC3oQXkeyqTSDUZ0LkvD7Xrh0?= =?us-ascii?Q?4CtjAh5U4vmZ6RfG+ghehU7SkLDfu8xGn8ZPaqNzjfE0vOcSj/xcxqG8/iKG?= =?us-ascii?Q?kCzeC3PiTM4U5tHSJcBKSTsIq48YXFCVOxgRwQDBOgTqVJpZykQtEJAZuc4q?= =?us-ascii?Q?sKIDdNz1YZLBELWWcoOdwv6lDZRr52++AhC3plfTPFnNxBkBmYniLYrdy0K7?= =?us-ascii?Q?t2L5P1y94vf0Jxkx6Zin2+AJ515Pa8k726/mgv6HPLFaYbPYJ4FJUPkBODyg?= =?us-ascii?Q?XlUNDZgTjIFOkfYRk67Fvh2EW7HBofTv91ZspXyx4w+Xb+6gXJ9ZtaHRnP4Q?= =?us-ascii?Q?kJJ7IsRobIHp+cwuMVIulfLd9htWeLRyixy1nuHgzt8wJAFqxfb9wETf7YRC?= =?us-ascii?Q?erjTwKGovzdmrmJV5m464pWfGBaiSHL4K738p/c5VQST7+Eq40+ow3FpFavF?= =?us-ascii?Q?3eWsTxI8+7P7te18wCjn17Uyw9YaktfqOWPEeQFajVZJCV0qeWfzdu+heRD9?= =?us-ascii?Q?OkwXhM5eDePKktgo0fSt5twOuIF0WkU7TQ+hfDWcx0XDsB6k+fnjOcJ81XH2?= =?us-ascii?Q?F9Ie12lXsWmkH3o/+tKHNtFlc6jv2BFJjrxTHNJcBros5rg2Qgcu1OX85O23?= =?us-ascii?Q?ZmbFHhCBcLECQTSsb9znpGIv5dUa6QbF8M2evf65eRRmDPOyhvIaMxXYH4Mb?= =?us-ascii?Q?sxzbHTzvfzhzPGUoEFhNhxbpqZylfbu2KZTtsMiKjpT2uWTJirU1ryrvpQAR?= =?us-ascii?Q?7Rd0G/VqI6yUB7Z4h3sKWIBQMt/eruOeZwOjQMMArbP06fLmXtWhHIQAV71l?= =?us-ascii?Q?szxKD/ERG53fMILpV+vrM1Q1n0V6N4tz5i205b86MYEpalJ14giJPnNEdvhm?= =?us-ascii?Q?perjfzZ20aniJ3T0Qt6GUPU6swPs1PW2TzKatPxOxnUmbzBwVFwzQdGWKrKK?= =?us-ascii?Q?tDW2ABKBUq76qP+KZ0/Lte5PQJrOKsL9jC023I8xtSi0A8vgE67jEj9jKHFw?= =?us-ascii?Q?dm99oXfqc0Sf+L0TbM/j0kMn3HRumbTi15TlMxelbIyz48mT+k0j1C5PSyh7?= =?us-ascii?Q?jbjfkB6TVE69UVksDEvS7eTO71lBBeXmciuOPDYSiJh/BFPy75P4wCgxmuRH?= =?us-ascii?Q?rEqUcYYN90ZTMGeQ2WLI5+ODrtnagfDc0gtU87iIRk6r9MFDMZETqmHlwjjs?= =?us-ascii?Q?e+0rG1Dp96cTKaqGPwaI+cmk0+XVPqTNi8A05k8n3TUCvJFKocPaErN0p3SN?= =?us-ascii?Q?gUag0Qo9Ao/DSrtKcmUudftg0OVy+Q/C4A1lSBA29NeHnXkxw9w5r/7TVx1i?= =?us-ascii?Q?RHCr121ohOSawCKqds+hVHCze9Tb9YZXOG4xxIeZ6aVt84/n8xoIBekfJf2r?= =?us-ascii?Q?3P6PePx5JsM99UkV3s7SrLEG65F3NLRdhW0NKjYNUrA37OKGlPef2tw+Wmov?= =?us-ascii?Q?qMwPenXhdcEbftaIXk1809f/yLmI9+EYOVLIiyMD8NunpYnzMrSjopOsnzQJ?= =?us-ascii?Q?BK7PPnRCD6LXWmjvCkt9I+TT38H+iu8Bo0XAVD/r?= X-OriginatorOrg: Nvidia.com X-MS-Exchange-CrossTenant-Network-Message-Id: 36e43812-6633-4d30-0b34-08dafd8172c3 X-MS-Exchange-CrossTenant-AuthSource: LV2PR12MB5869.namprd12.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-OriginalArrivalTime: 23 Jan 2023 20:36:04.5813 (UTC) X-MS-Exchange-CrossTenant-FromEntityHeader: Hosted X-MS-Exchange-CrossTenant-Id: 43083d15-7273-40c1-b7db-39efd9ccc17a X-MS-Exchange-CrossTenant-MailboxType: HOSTED X-MS-Exchange-CrossTenant-UserPrincipalName: 5BRLeZOZZG/8G7w9is9OvocRVNQB5hnyIZUH9fAdafvLbxh9wYujh4J/I3a0BULa X-MS-Exchange-Transport-CrossTenantHeadersStamped: BL3PR12MB6571 Precedence: bulk List-ID: X-Mailing-List: linux-wireless@vger.kernel.org iommufd follows the same design as KVM and uses memory cgroups to limit the amount of kernel memory a iommufd file descriptor can pin down. The various internal data structures already use GFP_KERNEL_ACCOUNT. However, one of the biggest consumers of kernel memory is the IOPTEs stored under the iommu_domain. Many drivers will allocate these at iommu_map() time and will trivially do the right thing if we pass in GFP_KERNEL_ACCOUNT. Reviewed-by: Kevin Tian Signed-off-by: Jason Gunthorpe --- drivers/iommu/iommufd/pages.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/iommu/iommufd/pages.c b/drivers/iommu/iommufd/pages.c index 22cc3bb0c6c55a..f8d92c9bb65b60 100644 --- a/drivers/iommu/iommufd/pages.c +++ b/drivers/iommu/iommufd/pages.c @@ -457,7 +457,7 @@ static int batch_iommu_map_small(struct iommu_domain *domain, while (size) { rc = iommu_map(domain, iova, paddr, PAGE_SIZE, prot, - GFP_KERNEL); + GFP_KERNEL_ACCOUNT); if (rc) goto err_unmap; iova += PAGE_SIZE; @@ -502,7 +502,7 @@ static int batch_to_domain(struct pfn_batch *batch, struct iommu_domain *domain, rc = iommu_map(domain, iova, PFN_PHYS(batch->pfns[cur]) + page_offset, next_iova - iova, area->iommu_prot, - GFP_KERNEL); + GFP_KERNEL_ACCOUNT); if (rc) goto err_unmap; iova = next_iova; -- 2.39.0