tools/sched_ext: scx_qmap - Add sub-sched cap fault injection

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Add a fault-injection mode to the scx_qmap sub-scheduler that deliberately
dispatches one of its own tasks to a cid it does not hold. The kernel cap
check must reject it and re-enqueue with SCX_TASK_REENQ_CAP, so the
nr_inject_attempts counter tracks nr_reenq_cap one to one, exercising the
delivery-time cap enforcement.

Signed-off-by: Tejun Heo <tj@kernel.org>
Reviewed-by: Andrea Righi <arighi@nvidia.com>

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Tejun Heo 2026-07-13 22:18:44 -10:00

parent e9151ed5c9

commit eb00f4a362

3 changed files with 64 additions and 4 deletions

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40

tools/sched_ext/scx_qmap.bpf.c

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tools/sched_ext/scx_qmap.c

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tools/sched_ext/scx_qmap.h

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