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| author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-08-05 19:21:13 +0000 |
|---|---|---|
| committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-08-05 19:21:13 +0000 |
| commit | e67e4ad4b161bd60b9da4c1872a9d77e0cac95fa (patch) | |
| tree | 5c58f869f31ddb1f7bd6e8bdea269b680b36c5b6 /kernel/sched/isolation.c | |
| parent | Releasing progress-linux version 6.8.12-1~progress7.99u1. (diff) | |
| download | linux-e67e4ad4b161bd60b9da4c1872a9d77e0cac95fa.tar.xz linux-e67e4ad4b161bd60b9da4c1872a9d77e0cac95fa.zip | |
Merging upstream version 6.9.7.
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'kernel/sched/isolation.c')
| -rw-r--r-- | kernel/sched/isolation.c | 11 |
1 files changed, 10 insertions, 1 deletions
diff --git a/kernel/sched/isolation.c b/kernel/sched/isolation.c index 82e2f7fc7c..5891e715f0 100644 --- a/kernel/sched/isolation.c +++ b/kernel/sched/isolation.c @@ -46,7 +46,16 @@ int housekeeping_any_cpu(enum hk_type type) if (cpu < nr_cpu_ids) return cpu; - return cpumask_any_and(housekeeping.cpumasks[type], cpu_online_mask); + cpu = cpumask_any_and(housekeeping.cpumasks[type], cpu_online_mask); + if (likely(cpu < nr_cpu_ids)) + return cpu; + /* + * Unless we have another problem this can only happen + * at boot time before start_secondary() brings the 1st + * housekeeping CPU up. + */ + WARN_ON_ONCE(system_state == SYSTEM_RUNNING || + type != HK_TYPE_TIMER); } } return smp_processor_id(); |