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Two fixes: fix a new tracepoint's output value, and fix the formatting of show-state syslog printouts. 

Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Merge tag 'sched-urgent-2020-08-15' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull scheduler fixes from Ingo Molnar:
 "Two fixes: fix a new tracepoint's output value, and fix the formatting
  of show-state syslog printouts"

* tag 'sched-urgent-2020-08-15' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  sched/debug: Fix the alignment of the show-state debug output
  sched: Fix use of count for nr_running tracepoint
This commit is contained in:
Linus Torvalds 2020-08-15 10:36:40 -07:00
parent 7f5faaaa59 cc172ff301
commit 1195d58f00
2 changed files with 5 additions and 12 deletions
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15
kernel/sched/core.c
View File

@ -6431,10 +6431,10 @@ void sched_show_task(struct task_struct *p)
if (!try_get_task_stack(p))
return;
printk(KERN_INFO "%-15.15s %c", p->comm, task_state_to_char(p));
pr_info("task:%-15.15s state:%c", p->comm, task_state_to_char(p));
if (p->state == TASK_RUNNING)
printk(KERN_CONT " running task ");
pr_cont(" running task ");
#ifdef CONFIG_DEBUG_STACK_USAGE
free = stack_not_used(p);
#endif
@ -6443,8 +6443,8 @@ void sched_show_task(struct task_struct *p)
if (pid_alive(p))
ppid = task_pid_nr(rcu_dereference(p->real_parent));
rcu_read_unlock();
printk(KERN_CONT "%5lu %5d %6d 0x%08lx\n", free,
task_pid_nr(p), ppid,
pr_cont(" stack:%5lu pid:%5d ppid:%6d flags:0x%08lx\n",
free, task_pid_nr(p), ppid,
(unsigned long)task_thread_info(p)->flags);
print_worker_info(KERN_INFO, p);
@ -6479,13 +6479,6 @@ void show_state_filter(unsigned long state_filter)
{
struct task_struct *g, *p;
#if BITS_PER_LONG == 32
printk(KERN_INFO
" task PC stack pid father\n");
#else
printk(KERN_INFO
" task PC stack pid father\n");
#endif
rcu_read_lock();
for_each_process_thread(g, p) {
/*

2
kernel/sched/sched.h
View File

@ -1999,7 +1999,7 @@ static inline void sub_nr_running(struct rq *rq, unsigned count)
{
rq->nr_running -= count;
if (trace_sched_update_nr_running_tp_enabled()) {
call_trace_sched_update_nr_running(rq, count);
call_trace_sched_update_nr_running(rq, -count);
}
/* Check if we still need preemption */