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Commit 72829bc3 authored by Thomas Gleixner's avatar Thomas Gleixner
Browse files

ftrace: move enums to ftrace.h and make helper function global 



picked from the mmiotracer patches to distangle the patch queues.

Signed-off-by: default avatarThomas Gleixner <tglx@linutronix.de>
parent 86069782

kernel/trace/trace.c

+8 −16
Original line number Diff line number Diff line
@@ -37,7 +37,7 @@ unsigned long __read_mostly tracing_thresh; 


static int tracing_disabled = 1;



static long

long

ns2usecs(cycle_t nsec)

{

	nsec += 500;
@@ -96,18 +96,6 @@ unsigned long nsecs_to_usecs(unsigned long nsecs) 
	return nsecs / 1000;

}



enum trace_type {

	__TRACE_FIRST_TYPE = 0,



	TRACE_FN,

	TRACE_CTX,

	TRACE_WAKE,

	TRACE_STACK,

	TRACE_SPECIAL,



	__TRACE_LAST_TYPE

};



enum trace_flag_type {

	TRACE_FLAG_IRQS_OFF		= 0x01,

	TRACE_FLAG_NEED_RESCHED		= 0x02,
@@ -190,7 +178,7 @@ void *head_page(struct trace_array_cpu *data) 
	return page_address(page);

}



static int

int

trace_seq_printf(struct trace_seq *s, const char *fmt, ...)

{

	int len = (PAGE_SIZE - 1) - s->len;
@@ -205,7 +193,7 @@ trace_seq_printf(struct trace_seq *s, const char *fmt, ...) 
	va_end(ap);



	/* If we can't write it all, don't bother writing anything */

	if (ret > len)

	if (ret >= len)

		return 0;



	s->len += ret;
@@ -638,7 +626,7 @@ tracing_generic_entry_update(struct trace_entry *entry, unsigned long flags) 
	pc = preempt_count();



	entry->preempt_count	= pc & 0xff;

	entry->pid		= tsk->pid;

	entry->pid		= (tsk) ? tsk->pid : 0;

	entry->t		= ftrace_now(raw_smp_processor_id());

	entry->flags = (irqs_disabled_flags(flags) ? TRACE_FLAG_IRQS_OFF : 0) |

		((pc & HARDIRQ_MASK) ? TRACE_FLAG_HARDIRQ : 0) |
@@ -1541,6 +1529,9 @@ static int trace_empty(struct trace_iterator *iter) 


static int print_trace_line(struct trace_iterator *iter)

{

	if (iter->trace && iter->trace->print_line)

		return iter->trace->print_line(iter);



	if (trace_flags & TRACE_ITER_BIN)

		return print_bin_fmt(iter);
@@ -2162,6 +2153,7 @@ static int tracing_open_pipe(struct inode *inode, struct file *filp) 
		return -ENOMEM;



	iter->tr = &global_trace;

	iter->trace = current_trace;



	filp->private_data = iter;

kernel/trace/trace.h

+15 −0
Original line number Diff line number Diff line
@@ -6,6 +6,18 @@ 
#include <linux/sched.h>

#include <linux/clocksource.h>



enum trace_type {

	__TRACE_FIRST_TYPE = 0,



	TRACE_FN,

	TRACE_CTX,

	TRACE_WAKE,

	TRACE_STACK,

	TRACE_SPECIAL,



	__TRACE_LAST_TYPE

};



/*

 * Function trace entry - function address and parent function addres:

 */
@@ -130,6 +142,7 @@ struct tracer { 
	int			(*selftest)(struct tracer *trace,

					    struct trace_array *tr);

#endif

	int			(*print_line)(struct trace_iterator *iter);

	struct tracer		*next;

	int			print_max;

};
@@ -276,6 +289,8 @@ extern int trace_selftest_startup_sched_switch(struct tracer *trace, 
#endif /* CONFIG_FTRACE_STARTUP_TEST */



extern void *head_page(struct trace_array_cpu *data);

extern int trace_seq_printf(struct trace_seq *s, const char *fmt, ...);

extern long ns2usecs(cycle_t nsec);



extern unsigned long trace_flags;