sched/rt: Annotate the RT balancing logic irqwork as IRQ_WORK_HARD_IRQ

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The push-IPI logic for RT tasks expects to be invoked from hardirq
context. One reason is that a RT task on the remote CPU would block the
softirq processing on PREEMPT_RT and so avoid pulling / balancing the RT
tasks as intended.

Annotate root_domain::rto_push_work as IRQ_WORK_HARD_IRQ.

Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lkml.kernel.org/r/20211006111852.1514359-2-bigeasy@linutronix.de

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Sebastian Andrzej Siewior 2021-10-06 13:18:49 +02:00 • committed by Peter Zijlstra

parent 66558b730f

commit da6ff09943

1 changed files with 1 additions and 1 deletions

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kernel/sched/topology.c

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