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authorRussell King <rmk+kernel@armlinux.org.uk>2017-09-09 16:34:41 +0100
committerRussell King <rmk+kernel@armlinux.org.uk>2017-09-09 16:34:41 +0100
commite558bdc21ae1f0db520eccd84015e17d8a589973 (patch)
treeb436123bd52f267b8c7f361618cded3e1e4421ea /kernel/trace/trace_stack.c
parentARM: 8692/1: mm: abort uaccess retries upon fatal signal (diff)
parentARM: 8691/1: Export save_stack_trace_tsk() (diff)
Merge branches 'fixes' and 'misc' into for-linus
Diffstat (limited to 'kernel/trace/trace_stack.c')
-rw-r--r--kernel/trace/trace_stack.c6
1 files changed, 6 insertions, 0 deletions
diff --git a/kernel/trace/trace_stack.c b/kernel/trace/trace_stack.c
index b4a751e8f9d6..a4df67cbc711 100644
--- a/kernel/trace/trace_stack.c
+++ b/kernel/trace/trace_stack.c
@@ -406,6 +406,8 @@ static const struct file_operations stack_trace_fops = {
.release = seq_release,
};
+#ifdef CONFIG_DYNAMIC_FTRACE
+
static int
stack_trace_filter_open(struct inode *inode, struct file *file)
{
@@ -423,6 +425,8 @@ static const struct file_operations stack_trace_filter_fops = {
.release = ftrace_regex_release,
};
+#endif /* CONFIG_DYNAMIC_FTRACE */
+
int
stack_trace_sysctl(struct ctl_table *table, int write,
void __user *buffer, size_t *lenp,
@@ -477,8 +481,10 @@ static __init int stack_trace_init(void)
trace_create_file("stack_trace", 0444, d_tracer,
NULL, &stack_trace_fops);
+#ifdef CONFIG_DYNAMIC_FTRACE
trace_create_file("stack_trace_filter", 0444, d_tracer,
&trace_ops, &stack_trace_filter_fops);
+#endif
if (stack_trace_filter_buf[0])
ftrace_set_early_filter(&trace_ops, stack_trace_filter_buf, 1);