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sysrq: use show_stack_loglvl()

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Show the stack trace on a CPU with the same log level as "CPU%d" header.

Signed-off-by: Dmitry Safonov <dima@arista.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Jiri Slaby <jslaby@suse.com>
Link: http://lkml.kernel.org/r/20200418201944.482088-45-dima@arista.com
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Dmitry Safonov 2020-06-08 21:32:10 -07:00 committed by Linus Torvalds
parent 20da1e8bb0
commit ab34b46d1a
2 changed files with 3 additions and 1 deletions
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2
drivers/tty/sysrq.c
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@ -235,7 +235,7 @@ static void showacpu(void *dummy)
raw_spin_lock_irqsave(&show_lock, flags); raw_spin_lock_irqsave(&show_lock, flags);
pr_info("CPU%d:\n", smp_processor_id()); pr_info("CPU%d:\n", smp_processor_id());
show_stack(NULL, NULL); show_stack_loglvl(NULL, NULL, KERN_INFO);
raw_spin_unlock_irqrestore(&show_lock, flags); raw_spin_unlock_irqrestore(&show_lock, flags);
} }

2
include/linux/sched/debug.h
View File

@ -31,6 +31,8 @@ extern void show_regs(struct pt_regs *);
* trace (or NULL if the entire call-chain of the task should be shown). * trace (or NULL if the entire call-chain of the task should be shown).
*/ */
extern void show_stack(struct task_struct *task, unsigned long *sp); extern void show_stack(struct task_struct *task, unsigned long *sp);
extern void show_stack_loglvl(struct task_struct *task, unsigned long *sp,
const char *loglvl);
extern void sched_show_task(struct task_struct *p); extern void sched_show_task(struct task_struct *p);