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X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-MessageData-0: =?us-ascii?Q?f1RNSU9GC1ZbscLfO33IvumxtZRlXU3ZCV0oW7TFdXCzIcy6VYiYp5LXpj8Q?= =?us-ascii?Q?EubWD+9ukMbqdeJoGRcTaPpvcF+AO/aBERePBYXSbiMemzhPws1QHF56D3Bk?= =?us-ascii?Q?YsIdxuZ5SifKuLHnE103lPIZ9XxFDXymp1COIbmytai6CDIcjEoaype1MTDP?= =?us-ascii?Q?o0N0dTZOF/dUOxTxo8VT5dNe6Hur8GzkhX9Y9/LIy52uq4htg/GeXyrvuMKw?= =?us-ascii?Q?2/tgZm9bbpTWm5iB0zjWpUR2uaAfVAoZPqvsVu3LTKppUhB6Zo0p+ETmOuuI?= =?us-ascii?Q?JQLpjeG5h8hG2OpeLCrOENQHfHshAik2in3GCCSsFyh1xe/78jCvb5Gn6U1X?= =?us-ascii?Q?U17qZ532ze+viXWXrT/HE0jOtqOXGLd/6rocARuUKXmTG1YhLMcpHsESF7u0?= =?us-ascii?Q?2agiqGkuUNdmDpVH80WiTukln7IUEp70wKVwWZNhwCV4PUHCXWZ5tDOd0e1C?= =?us-ascii?Q?g+IKOD5nqbNfGdayZ+zEAP+5QZySflybwLB8FLQctOJ3393eWxEkfbURCpQi?= =?us-ascii?Q?OCAPmYa269/++jXJjNljO1i4FlA1soz/8+9Nqrjybl8lZ5IOZN7AVA9h9j/g?= =?us-ascii?Q?ee53JBBSph1ShR3YCME6ekO/UHW/RFojJLjddsttbo2PdDq18Iv7kqTFI9Ob?= =?us-ascii?Q?3rVSS2VMT/HHK10RW3rY4TL1JoiHaVZDmzt3NxUozh5uSGVeFRqCmmrtzpqs?= =?us-ascii?Q?emKoBASmgd0n0fdwG0IJFXyDIMpdkc94/2SwSNqal3PoDDJZvuP70gSC52fD?= =?us-ascii?Q?7o51/4KPqtSDxfwzGJLzNycWyBlKk3+sI8vJjAWh1wlsYNIBFRM5SR3zERxI?= =?us-ascii?Q?MOe79uANYEXrNTNq0jvEPGS8djifyxFRi529fjUAfni7dQgDIm/5PL/n51i6?= =?us-ascii?Q?FiSHodujk+kB8Fw2GB4vTDVp1Jq8Wjox5n7ofiH+fEJGVjNfaUxFSQPvhrXP?= =?us-ascii?Q?UKBXox6rNCAKR6CXDbc6jawSAuSMpCaOE03uhCi5NkyiRQA5fycmJ8SqwVH8?= =?us-ascii?Q?lbw3wfCTwLiABRHH5N5RlCowm+lFxGoiJT7xBXjRC4jZhf8Bsa5MgKLNq1Vz?= =?us-ascii?Q?QnbXU9O7DOP2VvB0exGl9/nhmm8eocdJlXAq2NVTWs5Z8nKBH8sI8j4IkuzH?= =?us-ascii?Q?o11WIRAwdoKBSI/hTfs6DJgqVN2iEKtpPm6sqvkOHiXqPqWgeRk3nMstObjC?= =?us-ascii?Q?BzS4GA8zBzW+dVEvvL02gRamYjatfOtPJsuDS1KXfJdpd8iPkMD2SCCv735+?= =?us-ascii?Q?fwfFONtsqd6KOwwnU1sfXW8uPI3loSo/NgBjvAcJC0fCkJtVu7AYKLXzNzK+?= =?us-ascii?Q?tQqd/UNCuEUywN1dgFBcQMqKS5OvoBSCUbuW3zGPXWzQ7r+gtIgXeqfftdkE?= =?us-ascii?Q?T3p/qZoDVO2cRa2kRMcPxpC++10YI2ZiIhYtPPBKw4zB0E4VYPvCG7qK2Vod?= =?us-ascii?Q?IydK1dRVfMNFuhW2LoQaN9u4JMrXl/u1sEj7e0uKBK4SnSI8EjNUOeGUKSla?= =?us-ascii?Q?QulFeczaQSxveRDFIPNYeFx/Xhz3dzkMGHQTziu1fSA/TyXGK0JWRGFbFNLo?= =?us-ascii?Q?5YTc9/0IXAOHORw24Wr9i877xqE8tDEoVDsle0Qp4PUpGvVPx1r9dqb+SnhI?= =?us-ascii?Q?T+P5MglDa1gcXQ6JVuBZJNpqHscL3cfDyOWq8HPqAOsBcBN8F7t7A3kOuJAy?= =?us-ascii?Q?mJfFyM0wukkycqiUNPGnzvM/ux+gJDbvzIssCFhx9uZxamH1?= X-OriginatorOrg: Nvidia.com X-MS-Exchange-CrossTenant-Network-Message-Id: a90143dd-f6d2-4b32-4fa6-08deb0fc6d52 X-MS-Exchange-CrossTenant-AuthSource: LV8PR12MB9620.namprd12.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-OriginalArrivalTime: 13 May 2026 14:32:14.6547 (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: c/+/ZPV2hYx9lyf8gf9b2Hkw7/5rDiEjqxIciGwBwaAFboPb7Iv8eVTa0eHuRTd8 X-MS-Exchange-Transport-CrossTenantHeadersStamped: CY5PR12MB6059 On Wed, May 13, 2026 at 02:27:48PM +0000, Pranjal Shrivastava wrote: > Now, if we're work on an SVA page, with only SMMU supporting HTTU. A DMA > writes to the page and the process (CPU) calls fsync(). IIUC, it performs > a lookup in the Page Cache specifically for folios tagged as DIRTY. > Since, vmscan didn't run yet, this could potentally drop the writes.. How does it work differently in the MM when the CPU has BBM support? Jason