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

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picked from the mmiotracer patches to distangle the patch queues.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
This commit is contained in:
Thomas Gleixner 2008-05-23 21:37:28 +02:00
parent 86069782d6
commit 72829bc3d6
2 changed files with 23 additions and 16 deletions
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24
kernel/trace/trace.c
View file

@ -37,7 +37,7 @@ unsigned long __read_mostly tracing_thresh;
static int tracing_disabled = 1; static int tracing_disabled = 1;
static long long
ns2usecs(cycle_t nsec) ns2usecs(cycle_t nsec)
{ {
nsec += 500; nsec += 500;
@ -96,18 +96,6 @@ unsigned long nsecs_to_usecs(unsigned long nsecs)
return nsecs / 1000; 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 { enum trace_flag_type {
TRACE_FLAG_IRQS_OFF = 0x01, TRACE_FLAG_IRQS_OFF = 0x01,
TRACE_FLAG_NEED_RESCHED = 0x02, TRACE_FLAG_NEED_RESCHED = 0x02,
@ -190,7 +178,7 @@ void *head_page(struct trace_array_cpu *data)
return page_address(page); return page_address(page);
} }
static int int
trace_seq_printf(struct trace_seq *s, const char *fmt, ...) trace_seq_printf(struct trace_seq *s, const char *fmt, ...)
{ {
int len = (PAGE_SIZE - 1) - s->len; int len = (PAGE_SIZE - 1) - s->len;
@ -205,7 +193,7 @@ trace_seq_printf(struct trace_seq *s, const char *fmt, ...)
va_end(ap); va_end(ap);
/* If we can't write it all, don't bother writing anything */ /* If we can't write it all, don't bother writing anything */
if (ret > len) if (ret >= len)
return 0; return 0;
s->len += ret; s->len += ret;
@ -638,7 +626,7 @@ tracing_generic_entry_update(struct trace_entry *entry, unsigned long flags)
pc = preempt_count(); pc = preempt_count();
entry->preempt_count = pc & 0xff; entry->preempt_count = pc & 0xff;
entry->pid = tsk->pid; entry->pid = (tsk) ? tsk->pid : 0;
entry->t = ftrace_now(raw_smp_processor_id()); entry->t = ftrace_now(raw_smp_processor_id());
entry->flags = (irqs_disabled_flags(flags) ? TRACE_FLAG_IRQS_OFF : 0) | entry->flags = (irqs_disabled_flags(flags) ? TRACE_FLAG_IRQS_OFF : 0) |
((pc & HARDIRQ_MASK) ? TRACE_FLAG_HARDIRQ : 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) 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) if (trace_flags & TRACE_ITER_BIN)
return print_bin_fmt(iter); return print_bin_fmt(iter);
@ -2162,6 +2153,7 @@ static int tracing_open_pipe(struct inode *inode, struct file *filp)
return -ENOMEM; return -ENOMEM;
iter->tr = &global_trace; iter->tr = &global_trace;
iter->trace = current_trace;
filp->private_data = iter; filp->private_data = iter;

15
kernel/trace/trace.h
View file

@ -6,6 +6,18 @@
#include <linux/sched.h> #include <linux/sched.h>
#include <linux/clocksource.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: * Function trace entry - function address and parent function addres:
*/ */
@ -130,6 +142,7 @@ struct tracer {
int (*selftest)(struct tracer *trace, int (*selftest)(struct tracer *trace,
struct trace_array *tr); struct trace_array *tr);
#endif #endif
int (*print_line)(struct trace_iterator *iter);
struct tracer *next; struct tracer *next;
int print_max; int print_max;
}; };
@ -276,6 +289,8 @@ extern int trace_selftest_startup_sched_switch(struct tracer *trace,
#endif /* CONFIG_FTRACE_STARTUP_TEST */ #endif /* CONFIG_FTRACE_STARTUP_TEST */
extern void *head_page(struct trace_array_cpu *data); 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; extern unsigned long trace_flags;