summaryrefslogtreecommitdiffstats
path: root/kernel/trace/trace.c
diff options
context:
space:
mode:
Diffstat (limited to 'kernel/trace/trace.c')
-rw-r--r--kernel/trace/trace.c9
1 files changed, 6 insertions, 3 deletions
diff --git a/kernel/trace/trace.c b/kernel/trace/trace.c
index b6183bc9ecae..5d704a41f836 100644
--- a/kernel/trace/trace.c
+++ b/kernel/trace/trace.c
@@ -4114,7 +4114,8 @@ trace_printk_seq(struct trace_seq *s)
static void __ftrace_dump(bool disable_tracing)
{
- static DEFINE_SPINLOCK(ftrace_dump_lock);
+ static raw_spinlock_t ftrace_dump_lock =
+ (raw_spinlock_t)__RAW_SPIN_LOCK_UNLOCKED;
/* use static because iter can be a bit big for the stack */
static struct trace_iterator iter;
unsigned int old_userobj;
@@ -4123,7 +4124,8 @@ static void __ftrace_dump(bool disable_tracing)
int cnt = 0, cpu;
/* only one dump */
- spin_lock_irqsave(&ftrace_dump_lock, flags);
+ local_irq_save(flags);
+ __raw_spin_lock(&ftrace_dump_lock);
if (dump_ran)
goto out;
@@ -4195,7 +4197,8 @@ static void __ftrace_dump(bool disable_tracing)
}
out:
- spin_unlock_irqrestore(&ftrace_dump_lock, flags);
+ __raw_spin_unlock(&ftrace_dump_lock);
+ local_irq_restore(flags);
}
/* By default: disable tracing after the dump */