[GIT PULL] scheduler fixes

Ingo Molnar
2020-08-15T21:53:41Z

Linus,

Please pull the latest sched/urgent git tree from:

git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git sched-urgent-2020-08-15

# HEAD: cc172ff301d8079e941a6eb31758951a6d764084 sched/debug: Fix the alignment of the show-state debug output

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

Thanks,

Ingo

------------------>
Libing Zhou (1):
sched/debug: Fix the alignment of the show-state debug output

Phil Auld (1):
sched: Fix use of count for nr_running tracepoint

kernel/sched/core.c | 15 ++++-----------
kernel/sched/sched.h | 2 +-
2 files changed, 5 insertions(+), 12 deletions(-)

diff --git a/kernel/sched/core.c b/kernel/sched/core.c
index 4a0e7b449b88..09fd62568ba9 100644
--- a/kernel/sched/core.c
+++ b/kernel/sched/core.c
@@ -6387,10 +6387,10 @@ 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
@@ -6399,8 +6399,8 @@ 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);
@@ -6435,13 +6435,6 @@ 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) {
/*
diff --git a/kernel/sched/sched.h b/kernel/sched/sched.h
index 3fd283892761..28709f6b0975 100644
--- a/kernel/sched/sched.h
+++ b/kernel/sched/sched.h
@@ -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 */