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tracing: Rename max_stack_lock to stack_trace_max_lock

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Now that max_stack_lock is a global variable, it requires a naming
convention that is unlikely to collide. Rename it to the same naming
convention that the other stack_trace variables have.

Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
This commit is contained in:
Steven Rostedt (Red Hat) 2015-11-03 14:50:15 -05:00 committed by Steven Rostedt
parent bb99d8ccec
commit d332736df0
2 changed files with 9 additions and 9 deletions
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2
include/linux/ftrace.h
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@ -271,7 +271,7 @@ struct stack_trace;
extern unsigned stack_trace_index[];
extern struct stack_trace stack_trace_max;
extern unsigned long stack_trace_max_size;
extern arch_spinlock_t max_stack_lock;
extern arch_spinlock_t stack_trace_max_lock;
extern int stack_tracer_enabled;
void stack_trace_print(void);

16
kernel/trace/trace_stack.c
View File

@ -31,7 +31,7 @@ struct stack_trace stack_trace_max = {
};
unsigned long stack_trace_max_size;
arch_spinlock_t max_stack_lock =
arch_spinlock_t stack_trace_max_lock =
(arch_spinlock_t)__ARCH_SPIN_LOCK_UNLOCKED;
static DEFINE_PER_CPU(int, trace_active);
@ -65,7 +65,7 @@ void stack_trace_print(void)
/*
* When arch-specific code overides this function, the following
* data should be filled up, assuming max_stack_lock is held to
* data should be filled up, assuming stack_trace_max_lock is held to
* prevent concurrent updates.
* stack_trace_index[]
* stack_trace_max
@ -92,7 +92,7 @@ check_stack(unsigned long ip, unsigned long *stack)
return;
local_irq_save(flags);
arch_spin_lock(&max_stack_lock);
arch_spin_lock(&stack_trace_max_lock);
/* In case another CPU set the tracer_frame on us */
if (unlikely(!frame_size))
@ -175,7 +175,7 @@ check_stack(unsigned long ip, unsigned long *stack)
}
out:
arch_spin_unlock(&max_stack_lock);
arch_spin_unlock(&stack_trace_max_lock);
local_irq_restore(flags);
}
@ -246,9 +246,9 @@ stack_max_size_write(struct file *filp, const char __user *ubuf,
cpu = smp_processor_id();
per_cpu(trace_active, cpu)++;
arch_spin_lock(&max_stack_lock);
arch_spin_lock(&stack_trace_max_lock);
*ptr = val;
arch_spin_unlock(&max_stack_lock);
arch_spin_unlock(&stack_trace_max_lock);
per_cpu(trace_active, cpu)--;
local_irq_restore(flags);
@ -291,7 +291,7 @@ static void *t_start(struct seq_file *m, loff_t *pos)
cpu = smp_processor_id();
per_cpu(trace_active, cpu)++;
arch_spin_lock(&max_stack_lock);
arch_spin_lock(&stack_trace_max_lock);
if (*pos == 0)
return SEQ_START_TOKEN;
@ -303,7 +303,7 @@ static void t_stop(struct seq_file *m, void *p)
{
int cpu;
arch_spin_unlock(&max_stack_lock);
arch_spin_unlock(&stack_trace_max_lock);
cpu = smp_processor_id();
per_cpu(trace_active, cpu)--;