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Diffstat (limited to 'kernel/trace/trace.c')
-rw-r--r--kernel/trace/trace.c15
1 files changed, 7 insertions, 8 deletions
diff --git a/kernel/trace/trace.c b/kernel/trace/trace.c
index 47f46cbdd86..8741e5c4313 100644
--- a/kernel/trace/trace.c
+++ b/kernel/trace/trace.c
@@ -34,6 +34,7 @@
#include <linux/stacktrace.h>
#include <linux/ring_buffer.h>
+#include <linux/irqflags.h>
#include "trace.h"
@@ -873,7 +874,7 @@ ftrace_special(unsigned long arg1, unsigned long arg2, unsigned long arg3)
preempt_enable_notrace();
}
-#ifdef CONFIG_FTRACE
+#ifdef CONFIG_FUNCTION_TRACER
static void
function_trace_call(unsigned long ip, unsigned long parent_ip)
{
@@ -887,9 +888,6 @@ function_trace_call(unsigned long ip, unsigned long parent_ip)
if (unlikely(!ftrace_function_enabled))
return;
- if (skip_trace(ip))
- return;
-
pc = preempt_count();
resched = need_resched();
preempt_disable_notrace();
@@ -2401,9 +2399,10 @@ tracing_set_trace_write(struct file *filp, const char __user *ubuf,
int i;
size_t ret;
+ ret = cnt;
+
if (cnt > max_tracer_type_len)
cnt = max_tracer_type_len;
- ret = cnt;
if (copy_from_user(&buf, ubuf, cnt))
return -EFAULT;
@@ -2436,8 +2435,8 @@ tracing_set_trace_write(struct file *filp, const char __user *ubuf,
out:
mutex_unlock(&trace_types_lock);
- if (ret == cnt)
- filp->f_pos += cnt;
+ if (ret > 0)
+ filp->f_pos += ret;
return ret;
}
@@ -3120,7 +3119,7 @@ void ftrace_dump(void)
dump_ran = 1;
/* No turning back! */
- ftrace_kill_atomic();
+ ftrace_kill();
for_each_tracing_cpu(cpu) {
atomic_inc(&global_trace.data[cpu]->disabled);