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tracing/boot: Move external function declarations to kernel/trace/tra…
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…ce.h

Move external function declarations into kernel/trace/trace.h
from trace_boot.c for tracing subsystem internal use.

Link: http://lkml.kernel.org/r/158029060405.12381.11944554430359702545.stgit@devnote2

Signed-off-by: Masami Hiramatsu <mhiramat@kernel.org>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
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Masami Hiramatsu authored and Steven Rostedt (VMware) committed Jan 29, 2020
1 parent 76a598e commit 5c3469c
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Showing 2 changed files with 17 additions and 15 deletions.
17 changes: 17 additions & 0 deletions kernel/trace/trace.h
Original file line number Diff line number Diff line change
Expand Up @@ -1157,6 +1157,11 @@ int unregister_ftrace_command(struct ftrace_func_command *cmd);
void ftrace_create_filter_files(struct ftrace_ops *ops,
struct dentry *parent);
void ftrace_destroy_filter_files(struct ftrace_ops *ops);

extern int ftrace_set_filter(struct ftrace_ops *ops, unsigned char *buf,
int len, int reset);
extern int ftrace_set_notrace(struct ftrace_ops *ops, unsigned char *buf,
int len, int reset);
#else
struct ftrace_func_command;

Expand Down Expand Up @@ -1905,6 +1910,15 @@ void trace_printk_start_comm(void);
int trace_keep_overwrite(struct tracer *tracer, u32 mask, int set);
int set_tracer_flag(struct trace_array *tr, unsigned int mask, int enabled);

/* Used from boot time tracer */
extern int trace_set_options(struct trace_array *tr, char *option);
extern int tracing_set_tracer(struct trace_array *tr, const char *buf);
extern ssize_t tracing_resize_ring_buffer(struct trace_array *tr,
unsigned long size, int cpu_id);
extern int tracing_set_cpumask(struct trace_array *tr,
cpumask_var_t tracing_cpumask_new);


#define MAX_EVENT_NAME_LEN 64

extern int trace_run_command(const char *buf, int (*createfn)(int, char**));
Expand Down Expand Up @@ -1964,6 +1978,9 @@ static inline const char *get_syscall_name(int syscall)
#ifdef CONFIG_EVENT_TRACING
void trace_event_init(void);
void trace_event_eval_update(struct trace_eval_map **map, int len);
/* Used from boot time tracer */
extern int ftrace_set_clr_event(struct trace_array *tr, char *buf, int set);
extern int trigger_process_regex(struct trace_event_file *file, char *buff);
#else
static inline void __init trace_event_init(void) { }
static inline void trace_event_eval_update(struct trace_eval_map **map, int len) { }
Expand Down
15 changes: 0 additions & 15 deletions kernel/trace/trace_boot.c
Original file line number Diff line number Diff line change
Expand Up @@ -21,13 +21,6 @@

#define MAX_BUF_LEN 256

extern int trace_set_options(struct trace_array *tr, char *option);
extern int tracing_set_tracer(struct trace_array *tr, const char *buf);
extern ssize_t tracing_resize_ring_buffer(struct trace_array *tr,
unsigned long size, int cpu_id);
extern int tracing_set_cpumask(struct trace_array *tr,
cpumask_var_t tracing_cpumask_new);

static void __init
trace_boot_set_instance_options(struct trace_array *tr, struct xbc_node *node)
{
Expand Down Expand Up @@ -76,9 +69,6 @@ trace_boot_set_instance_options(struct trace_array *tr, struct xbc_node *node)
}

#ifdef CONFIG_EVENT_TRACING
extern int ftrace_set_clr_event(struct trace_array *tr, char *buf, int set);
extern int trigger_process_regex(struct trace_event_file *file, char *buff);

static void __init
trace_boot_enable_events(struct trace_array *tr, struct xbc_node *node)
{
Expand Down Expand Up @@ -252,11 +242,6 @@ trace_boot_init_events(struct trace_array *tr, struct xbc_node *node)
#endif

#ifdef CONFIG_DYNAMIC_FTRACE
extern bool ftrace_filter_param __initdata;
extern int ftrace_set_filter(struct ftrace_ops *ops, unsigned char *buf,
int len, int reset);
extern int ftrace_set_notrace(struct ftrace_ops *ops, unsigned char *buf,
int len, int reset);
static void __init
trace_boot_set_ftrace_filter(struct trace_array *tr, struct xbc_node *node)
{
Expand Down

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