sched_ext: Skip per-CPU tasks in scx_bpf_reenqueue_local()

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scx_bpf_reenqueue_local() can be invoked from ops.cpu_release() to give
tasks that are queued to the local DSQ a chance to migrate to other
CPUs, when a CPU is taken by a higher scheduling class.

However, there is no point re-enqueuing tasks that can only run on that
particular CPU, as they would simply be re-added to the same local DSQ
without any benefit.

Therefore, skip per-CPU tasks in scx_bpf_reenqueue_local().

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

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Andrea Righi 2025-03-13 18:03:21 +01:00 • committed by Tejun Heo

parent 71d078803c

commit 97e13ecb02

1 changed files with 5 additions and 1 deletions

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kernel/sched/ext.c

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