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X-OriginatorOrg: arm.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 18 Dec 2025 08:38:17.4516 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 5d8747c0-2d8e-4ad1-4254-08de3e10cac4 X-MS-Exchange-CrossTenant-Id: f34e5979-57d9-4aaa-ad4d-b122a662184d X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=f34e5979-57d9-4aaa-ad4d-b122a662184d;Ip=[4.158.2.129];Helo=[outbound-uk1.az.dlp.m.darktrace.com] X-MS-Exchange-CrossTenant-AuthSource: AMS1EPF00000040.eurprd04.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: VI1PR08MB5536 [...] > > I think it would be better to use only __GFP_HIGH in here since > > when kpti_install_ng_mappings() is called, "kswpd" doesn't created yet. > > and to allocate page with assurance, It would be good to use > > min_reserved to. > > > > Am I missing something? > > Personally I think we should just use "GFP_KERNEL | __GFP_ZERO". Anything else > would make this allocation look special, which it is not. If we fail to allocate > at this point in boot, we have bigger problems. But I'm not sure *HOW effective* to use GFP_KERNEL in here. Since it's before the any filesystem inited. IOW, in this context, almost there would be no *page cache* and I think it seems meaningless to use "GFP_KERNEL" and "direct reclaim" So to get success for allocation, __GFP_HIGH | _GFP_ZERO seems much better. Thanks -- Sincerely, Yeoreum Yun