diff options
| -rw-r--r-- | Documentation/scheduler/sched-ext.rst | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/Documentation/scheduler/sched-ext.rst b/Documentation/scheduler/sched-ext.rst index e6d70d165e758..a1869c38046ed 100644 --- a/Documentation/scheduler/sched-ext.rst +++ b/Documentation/scheduler/sched-ext.rst @@ -49,8 +49,8 @@ options should be enabled to use sched_ext: sched_ext is used only when the BPF scheduler is loaded and running. If a task explicitly sets its scheduling policy to ``SCHED_EXT``, it will be -treated as ``SCHED_NORMAL`` and scheduled by CFS until the BPF scheduler is -loaded. +treated as ``SCHED_NORMAL`` and scheduled by the fair-class scheduler until the +BPF scheduler is loaded. When the BPF scheduler is loaded and ``SCX_OPS_SWITCH_PARTIAL`` is not set in ``ops->flags``, all ``SCHED_NORMAL``, ``SCHED_BATCH``, ``SCHED_IDLE``, and @@ -59,11 +59,11 @@ 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 CFS. +``SCHED_IDLE`` policies are scheduled by the fair-class scheduler. Terminating the sched_ext scheduler program, triggering `SysRq-S`, or detection of any internal error including stalled runnable tasks aborts the -BPF scheduler and reverts all tasks back to CFS. +BPF scheduler and reverts all tasks back to the fair-class scheduler. .. code-block:: none |