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| author | Zqiang <qiang.zhang@linux.dev> | 2026-05-08 14:50:45 +0300 |
|---|---|---|
| committer | Tejun Heo <tj@kernel.org> | 2026-05-08 18:11:53 +0300 |
| commit | ab28a0673daabe7f0fcbd7a5e36334f2f003f02f (patch) | |
| tree | 1912293367e0a1cc60a8284c48321e536b228510 | |
| parent | 1f91d0d5827512816789f74f4d72d16269bde1ec (diff) | |
| download | linux-ab28a0673daabe7f0fcbd7a5e36334f2f003f02f.tar.xz | |
sched_ext: Use IRQ_WORK_INIT_HARD() to initialize sch->disable_irq_work
For built with PREEMPT_RT kernels, the scx_disable_irq_workfn() is
called from per-cpu irq_work kthreads context, this means that
when call the scx_dump_state() in the scx_disable_irq_workfn() to
output current->comm/pid, it always output current irq_work kthread's
comm/pid. this commit therefore use the IRQ_WORK_INIT_HARD() to
initialize sch->disable_irq_work to make scx_disable_irq_workfn() is
called from hardirq context.
Fixes: f4a6c506d118 ("sched_ext: Always bounce scx_disable() through irq_work")
Signed-off-by: Zqiang <qiang.zhang@linux.dev>
Signed-off-by: Tejun Heo <tj@kernel.org>
| -rw-r--r-- | kernel/sched/ext.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/kernel/sched/ext.c b/kernel/sched/ext.c index f4e2db8e56be..df305712a2d4 100644 --- a/kernel/sched/ext.c +++ b/kernel/sched/ext.c @@ -6589,7 +6589,7 @@ static struct scx_sched *scx_alloc_and_add_sched(struct sched_ext_ops *ops, sch->slice_dfl = SCX_SLICE_DFL; atomic_set(&sch->exit_kind, SCX_EXIT_NONE); - init_irq_work(&sch->disable_irq_work, scx_disable_irq_workfn); + sch->disable_irq_work = IRQ_WORK_INIT_HARD(scx_disable_irq_workfn); kthread_init_work(&sch->disable_work, scx_disable_workfn); timer_setup(&sch->bypass_lb_timer, scx_bypass_lb_timerfn, 0); |