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X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-MessageData-0: =?us-ascii?Q?TeVNDoXrRIg+nePJcAcyYmQ7vJjhqcvlwXYTSThyw9FGyhAaJAE+AP9Oh+4V?= =?us-ascii?Q?7pLfTXD8P/FoUGrJgak9BgtWVtPWMHG7wEf02Ef8GHdQCHg/sp8XndeBCrWG?= =?us-ascii?Q?CQXmlxN2EmpJFSI3DXXeL7Y6q1RbemlJzx6Yv+Lz2in+s36yLBgm/UMQTzxo?= =?us-ascii?Q?ug+OfmunOmWmTWrFvnyfZo3H7kRfInMylUVybSvHfqwDtWezDaVZjAA/x8FB?= =?us-ascii?Q?EVwEhAAoFCROSYYTTpUt3BcEvrheBwqtY3USotAU+bjJuD3TkHAQdGrSIzMc?= =?us-ascii?Q?J1e0DioowqPb4TkPSZa+GpkUjirI5AsDaNlwNFF5LUGmEPNgPOdWGQpCnj52?= =?us-ascii?Q?HxZLDH1QVDzFyTAe4FT8ETRiJYnCSwOhVit0VUn8QdFU7A2e4ZBi6c07aOHY?= =?us-ascii?Q?VJEv/lqb57A5OAmAxsLHbFyDqbuvH5+FF9tdwsQ6W6P55POTRIq/diVTC3m5?= =?us-ascii?Q?k03BfnZwbXlanyGKxztweCSRkCBIRri2tV8hBaKZk+V7db9hxBLztRq7SZ4f?= =?us-ascii?Q?GjRkIu5TMa16tTZSzZB7eHNEBnZrY+D1oZRwZ85RkbHIm5ALOSehEGOXWcLW?= =?us-ascii?Q?w77tgCFKZjlEhbIwLVPEip5xE7pGc311kXuRfE9G0Y/P6zsx601oIYoZZv6o?= =?us-ascii?Q?i1kfNhP/x+kTgYRAQz9Jww6evf7S5CTrbqWXToizwGEtB1ZeUM5nOQMOX3jB?= =?us-ascii?Q?SQoqzdyE7plhZ3+NEZXnZ6rmtFhEgaR3jY3jFeoQbpqddGra+u9n563IEhy2?= =?us-ascii?Q?b1tmaISL8MxFkeYuLhoqnv9ksiVBf5CYV+hqpggS7MkKiihYbnniPNddDqIA?= =?us-ascii?Q?fYB7sEBkaqKp338LEiVYHk9MLHQ/28CWdxbW7mYereMOn5+Bk0Wbl8eXrljc?= =?us-ascii?Q?kIPIPT9UjPhN9CzuvKRyjS+Eo3aP2Z01im9KK7FLzdbSZ9e8OmohRIFvwgX3?= =?us-ascii?Q?iUKins6LRi10Vaik3hs98AFlIhOOoDkf13QUR6/Op+qFRJjqKR+2SU4z8r76?= =?us-ascii?Q?tgVxojpYXrqNuMz9ps6JcApt7AWfaeqbG8gYAYmGLpqW2XfNj/O87sENchWz?= =?us-ascii?Q?CwAc3ISODtQmrWywYvUOysCQ8XEDRIMYdhSHj2bTX3aLVHFL1jsL75nugtsD?= =?us-ascii?Q?zqFJHRcb8TaY2LyVrPniMSsdNhPxHhDmdg49g/8Lm+I8x1dQerR6RzVgVGd9?= =?us-ascii?Q?hR9VbhU9GlKgA+Q7nE/TZHTXqzzla85eytfYmJb67I7e05qQlKMuT03EORj0?= =?us-ascii?Q?4xxFF0tzIdlnf/r4txflLPwl/j0QTQW4XWEGii1d9oBU5/jrS3luGce5LVU6?= =?us-ascii?Q?ssn/Qt95MDvlh/qna9+IWeUsl/ZPjzPJGT43umfFyfruRkHyel3DtJVwISFb?= =?us-ascii?Q?fLF2q8wCm5yT/HAVSLAY5a0Igwe6nSNwjPWhlrm8dJEtKHFVhvTrwH2tgJVw?= =?us-ascii?Q?5sXzON36MerXUkXpHHzZg5ryJT7nLXlWPSWdijT5xrxMRNRpKg54xUMTzKqh?= =?us-ascii?Q?qdZfDT31yeCk7uKHDXYtP5DNdd2QB6ghNUrnRRQOXnpXWNo51Xg1xp8JB7qk?= =?us-ascii?Q?U5li5w2FwDDWsTJ2U3e6N7YptwZxbr+yyCAlocDkIlNWd34AV2la/i+EkP/h?= =?us-ascii?Q?4NrdBCbAPkeevwFMJGLk7azziBA68kCZH3oVcAmQFpbiJIGThp3I1N1M/wvb?= =?us-ascii?Q?eYFjqmISfzae1omCx/S9P9scxBVyvVlXWx+Odjk0r0TKDDKJstiIvW4k+C+q?= =?us-ascii?Q?enK6kHr9VA=3D=3D?= X-OriginatorOrg: Nvidia.com X-MS-Exchange-CrossTenant-Network-Message-Id: d109d34b-c0b3-4d83-b930-08de7b8b2a7b X-MS-Exchange-CrossTenant-AuthSource: LV8PR12MB9620.namprd12.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-OriginalArrivalTime: 06 Mar 2026 14:17:57.7951 (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: +6RuTsSSDPwbjsQCdV1Lo8N0CyplSPhmZD8VC24072N46IgrCHRNw6YRUMOMlbgGgUCevYnb9RsKXrXF4ydc/A== X-MS-Exchange-Transport-CrossTenantHeadersStamped: CH3PR12MB8355 On Fri, Mar 06, 2026 at 10:30:51AM +0000, Christian Loehle wrote: > Mention the scheduling class precedence of fair and sched_ext to > clear up how sched_ext partial mode works. > > Signed-off-by: Christian Loehle Agreed, clarifying fair scheduling precedence here can help better understand the implications of partial mode. Acked-by: Andrea Righi Thanks, -Andrea > --- > Documentation/scheduler/sched-ext.rst | 3 ++- > 1 file changed, 2 insertions(+), 1 deletion(-) > > diff --git a/Documentation/scheduler/sched-ext.rst b/Documentation/scheduler/sched-ext.rst > index 9e2882d937b4..100d45963781 100644 > --- a/Documentation/scheduler/sched-ext.rst > +++ b/Documentation/scheduler/sched-ext.rst > @@ -58,7 +58,8 @@ in ``ops->flags``, all ``SCHED_NORMAL``, ``SCHED_BATCH``, ``SCHED_IDLE``, and > However, when the BPF scheduler is loaded and ``SCX_OPS_SWITCH_PARTIAL`` is > set in ``ops->flags``, only tasks with the ``SCHED_EXT`` policy are scheduled > by sched_ext, while tasks with ``SCHED_NORMAL``, ``SCHED_BATCH`` and > -``SCHED_IDLE`` policies are scheduled by the fair-class scheduler. > +``SCHED_IDLE`` policies are scheduled by the fair-class scheduler which has > +higher sched_class precedence than ``SCHED_EXT``. > > Terminating the sched_ext scheduler program, triggering `SysRq-S`, or > detection of any internal error including stalled runnable tasks aborts the > -- > 2.34.1 >