diff options
| author | Peter Zijlstra <peterz@infradead.org> | 2017-04-14 18:20:48 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2017-05-15 10:15:26 +0200 |
| commit | a420b0630362c2c451060e6187e36d72df827134 (patch) | |
| tree | ff192d640c344446ca1a90bc2cb7c843007540cb /kernel/sched/topology.c | |
| parent | sched/debug: Print the scheduler topology group mask (diff) | |
| download | linux-a420b0630362c2c451060e6187e36d72df827134.tar.xz linux-a420b0630362c2c451060e6187e36d72df827134.zip | |
sched/topology: Verify the first group matches the child domain
We want sched_groups to be sibling child domains (or individual CPUs
when there are no child domains). Furthermore, since the first group
of a domain should include the CPU of that domain, the first group of
each domain should match the child domain.
Verify this is indeed so.
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'kernel/sched/topology.c')
| -rw-r--r-- | kernel/sched/topology.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/kernel/sched/topology.c b/kernel/sched/topology.c index 3d50ee38b8fb..81c82031ed95 100644 --- a/kernel/sched/topology.c +++ b/kernel/sched/topology.c @@ -93,6 +93,12 @@ static int sched_domain_debug_one(struct sched_domain *sd, int cpu, int level, group->sgc->capacity); } + if (group == sd->groups && sd->child && + !cpumask_equal(sched_domain_span(sd->child), + sched_group_cpus(group))) { + printk(KERN_ERR "ERROR: domain->groups does not match domain->child\n"); + } + group = group->next; if (group != sd->groups) |