[PATCH v3 16/19] sched/proc: Print accurate cpumask vs migrate_disable()

From: Peter Zijlstra
Date: Thu Oct 15 2020 - 07:10:22 EST


Ensure /proc/*/status doesn't print 'random' cpumasks due to
migrate_disable().

Signed-off-by: Peter Zijlstra (Intel) <peterz@xxxxxxxxxxxxx>
---
fs/proc/array.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)

--- a/fs/proc/array.c
+++ b/fs/proc/array.c
@@ -382,9 +382,9 @@ static inline void task_context_switch_c
static void task_cpus_allowed(struct seq_file *m, struct task_struct *task)
{
seq_printf(m, "Cpus_allowed:\t%*pb\n",
- cpumask_pr_args(task->cpus_ptr));
+ cpumask_pr_args(&task->cpus_mask));
seq_printf(m, "Cpus_allowed_list:\t%*pbl\n",
- cpumask_pr_args(task->cpus_ptr));
+ cpumask_pr_args(&task->cpus_mask));
}

static inline void task_core_dumping(struct seq_file *m, struct mm_struct *mm)