* [RFC PATCH 1/2] tracing: Remove sysprof ftrace plugin
2010-07-15 23:36 [RFC PATCH 0/2] tracing: Remove sysprof Frederic Weisbecker
@ 2010-07-15 23:36 ` Frederic Weisbecker
2010-07-15 23:36 ` [RFC PATCH 2/2] tracing: Remove special traces Frederic Weisbecker
2010-07-17 5:28 ` [RFC PATCH 0/2] tracing: Remove sysprof Soeren Sandmann
2 siblings, 0 replies; 6+ messages in thread
From: Frederic Weisbecker @ 2010-07-15 23:36 UTC (permalink / raw)
To: Soeren Sandmann
Cc: LKML, Frederic Weisbecker, Soeren Sandmann, Peter Zijlstra,
Ingo Molnar, Steven Rostedt
The sysprof ftrace plugin doesn't seem to be seriously used
somewhere. There is a branch in the sysprof tree that makes
an interface to it, but the real sysprof tool uses either its
own module or perf events.
Drop the sysprof ftrace plugin then, as it's mostly useless.
Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Soeren Sandmann <sandmann@daimi.au.dk>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Steven Rostedt <rostedt@goodmis.org>
---
kernel/trace/Kconfig | 9 -
kernel/trace/Makefile | 1 -
kernel/trace/trace.c | 3 -
kernel/trace/trace.h | 3 -
kernel/trace/trace_selftest.c | 32 ----
kernel/trace/trace_sysprof.c | 330 -----------------------------------------
6 files changed, 0 insertions(+), 378 deletions(-)
delete mode 100644 kernel/trace/trace_sysprof.c
diff --git a/kernel/trace/Kconfig b/kernel/trace/Kconfig
index f5306cb..c7683fd 100644
--- a/kernel/trace/Kconfig
+++ b/kernel/trace/Kconfig
@@ -194,15 +194,6 @@ config PREEMPT_TRACER
enabled. This option and the irqs-off timing option can be
used together or separately.)
-config SYSPROF_TRACER
- bool "Sysprof Tracer"
- depends on X86
- select GENERIC_TRACER
- select CONTEXT_SWITCH_TRACER
- help
- This tracer provides the trace needed by the 'Sysprof' userspace
- tool.
-
config SCHED_TRACER
bool "Scheduling Latency Tracer"
select GENERIC_TRACER
diff --git a/kernel/trace/Makefile b/kernel/trace/Makefile
index 84b2c99..438e84a 100644
--- a/kernel/trace/Makefile
+++ b/kernel/trace/Makefile
@@ -30,7 +30,6 @@ obj-$(CONFIG_TRACING) += trace_output.o
obj-$(CONFIG_TRACING) += trace_stat.o
obj-$(CONFIG_TRACING) += trace_printk.o
obj-$(CONFIG_CONTEXT_SWITCH_TRACER) += trace_sched_switch.o
-obj-$(CONFIG_SYSPROF_TRACER) += trace_sysprof.o
obj-$(CONFIG_FUNCTION_TRACER) += trace_functions.o
obj-$(CONFIG_IRQSOFF_TRACER) += trace_irqsoff.o
obj-$(CONFIG_PREEMPT_TRACER) += trace_irqsoff.o
diff --git a/kernel/trace/trace.c b/kernel/trace/trace.c
index 8683dec..78a49e6 100644
--- a/kernel/trace/trace.c
+++ b/kernel/trace/trace.c
@@ -4354,9 +4354,6 @@ static __init int tracer_init_debugfs(void)
trace_create_file("dyn_ftrace_total_info", 0444, d_tracer,
&ftrace_update_tot_cnt, &tracing_dyn_info_fops);
#endif
-#ifdef CONFIG_SYSPROF_TRACER
- init_tracer_sysprof_debugfs(d_tracer);
-#endif
create_trace_options_dir();
diff --git a/kernel/trace/trace.h b/kernel/trace/trace.h
index 84d3f12..2114b4c 100644
--- a/kernel/trace/trace.h
+++ b/kernel/trace/trace.h
@@ -296,7 +296,6 @@ struct dentry *trace_create_file(const char *name,
const struct file_operations *fops);
struct dentry *tracing_init_dentry(void);
-void init_tracer_sysprof_debugfs(struct dentry *d_tracer);
struct ring_buffer_event;
@@ -428,8 +427,6 @@ extern int trace_selftest_startup_nop(struct tracer *trace,
struct trace_array *tr);
extern int trace_selftest_startup_sched_switch(struct tracer *trace,
struct trace_array *tr);
-extern int trace_selftest_startup_sysprof(struct tracer *trace,
- struct trace_array *tr);
extern int trace_selftest_startup_branch(struct tracer *trace,
struct trace_array *tr);
#endif /* CONFIG_FTRACE_STARTUP_TEST */
diff --git a/kernel/trace/trace_selftest.c b/kernel/trace/trace_selftest.c
index 39a5ca4..6ed05ee 100644
--- a/kernel/trace/trace_selftest.c
+++ b/kernel/trace/trace_selftest.c
@@ -690,38 +690,6 @@ trace_selftest_startup_sched_switch(struct tracer *trace, struct trace_array *tr
}
#endif /* CONFIG_CONTEXT_SWITCH_TRACER */
-#ifdef CONFIG_SYSPROF_TRACER
-int
-trace_selftest_startup_sysprof(struct tracer *trace, struct trace_array *tr)
-{
- unsigned long count;
- int ret;
-
- /* start the tracing */
- ret = tracer_init(trace, tr);
- if (ret) {
- warn_failed_init_tracer(trace, ret);
- return ret;
- }
-
- /* Sleep for a 1/10 of a second */
- msleep(100);
- /* stop the tracing. */
- tracing_stop();
- /* check the trace buffer */
- ret = trace_test_buffer(tr, &count);
- trace->reset(tr);
- tracing_start();
-
- if (!ret && !count) {
- printk(KERN_CONT ".. no entries found ..");
- ret = -1;
- }
-
- return ret;
-}
-#endif /* CONFIG_SYSPROF_TRACER */
-
#ifdef CONFIG_BRANCH_TRACER
int
trace_selftest_startup_branch(struct tracer *trace, struct trace_array *tr)
diff --git a/kernel/trace/trace_sysprof.c b/kernel/trace/trace_sysprof.c
deleted file mode 100644
index c080956..0000000
--- a/kernel/trace/trace_sysprof.c
+++ /dev/null
@@ -1,330 +0,0 @@
-/*
- * trace stack traces
- *
- * Copyright (C) 2004-2008, Soeren Sandmann
- * Copyright (C) 2007 Steven Rostedt <srostedt@redhat.com>
- * Copyright (C) 2008 Ingo Molnar <mingo@redhat.com>
- */
-#include <linux/kallsyms.h>
-#include <linux/debugfs.h>
-#include <linux/hrtimer.h>
-#include <linux/uaccess.h>
-#include <linux/ftrace.h>
-#include <linux/module.h>
-#include <linux/irq.h>
-#include <linux/fs.h>
-
-#include <asm/stacktrace.h>
-
-#include "trace.h"
-
-static struct trace_array *sysprof_trace;
-static int __read_mostly tracer_enabled;
-
-/*
- * 1 msec sample interval by default:
- */
-static unsigned long sample_period = 1000000;
-static const unsigned int sample_max_depth = 512;
-
-static DEFINE_MUTEX(sample_timer_lock);
-/*
- * Per CPU hrtimers that do the profiling:
- */
-static DEFINE_PER_CPU(struct hrtimer, stack_trace_hrtimer);
-
-struct stack_frame_user {
- const void __user *next_fp;
- unsigned long return_address;
-};
-
-static int
-copy_stack_frame(const void __user *fp, struct stack_frame_user *frame)
-{
- int ret;
-
- if (!access_ok(VERIFY_READ, fp, sizeof(*frame)))
- return 0;
-
- ret = 1;
- pagefault_disable();
- if (__copy_from_user_inatomic(frame, fp, sizeof(*frame)))
- ret = 0;
- pagefault_enable();
-
- return ret;
-}
-
-struct backtrace_info {
- struct trace_array_cpu *data;
- struct trace_array *tr;
- int pos;
-};
-
-static void
-backtrace_warning_symbol(void *data, char *msg, unsigned long symbol)
-{
- /* Ignore warnings */
-}
-
-static void backtrace_warning(void *data, char *msg)
-{
- /* Ignore warnings */
-}
-
-static int backtrace_stack(void *data, char *name)
-{
- /* Don't bother with IRQ stacks for now */
- return -1;
-}
-
-static void backtrace_address(void *data, unsigned long addr, int reliable)
-{
- struct backtrace_info *info = data;
-
- if (info->pos < sample_max_depth && reliable) {
- __trace_special(info->tr, info->data, 1, addr, 0);
-
- info->pos++;
- }
-}
-
-static const struct stacktrace_ops backtrace_ops = {
- .warning = backtrace_warning,
- .warning_symbol = backtrace_warning_symbol,
- .stack = backtrace_stack,
- .address = backtrace_address,
- .walk_stack = print_context_stack,
-};
-
-static int
-trace_kernel(struct pt_regs *regs, struct trace_array *tr,
- struct trace_array_cpu *data)
-{
- struct backtrace_info info;
- unsigned long bp;
- char *stack;
-
- info.tr = tr;
- info.data = data;
- info.pos = 1;
-
- __trace_special(info.tr, info.data, 1, regs->ip, 0);
-
- stack = ((char *)regs + sizeof(struct pt_regs));
-#ifdef CONFIG_FRAME_POINTER
- bp = regs->bp;
-#else
- bp = 0;
-#endif
-
- dump_trace(NULL, regs, (void *)stack, bp, &backtrace_ops, &info);
-
- return info.pos;
-}
-
-static void timer_notify(struct pt_regs *regs, int cpu)
-{
- struct trace_array_cpu *data;
- struct stack_frame_user frame;
- struct trace_array *tr;
- const void __user *fp;
- int is_user;
- int i;
-
- if (!regs)
- return;
-
- tr = sysprof_trace;
- data = tr->data[cpu];
- is_user = user_mode(regs);
-
- if (!current || current->pid == 0)
- return;
-
- if (is_user && current->state != TASK_RUNNING)
- return;
-
- __trace_special(tr, data, 0, 0, current->pid);
-
- if (!is_user)
- i = trace_kernel(regs, tr, data);
- else
- i = 0;
-
- /*
- * Trace user stack if we are not a kernel thread
- */
- if (current->mm && i < sample_max_depth) {
- regs = (struct pt_regs *)current->thread.sp0 - 1;
-
- fp = (void __user *)regs->bp;
-
- __trace_special(tr, data, 2, regs->ip, 0);
-
- while (i < sample_max_depth) {
- frame.next_fp = NULL;
- frame.return_address = 0;
- if (!copy_stack_frame(fp, &frame))
- break;
- if ((unsigned long)fp < regs->sp)
- break;
-
- __trace_special(tr, data, 2, frame.return_address,
- (unsigned long)fp);
- fp = frame.next_fp;
-
- i++;
- }
-
- }
-
- /*
- * Special trace entry if we overflow the max depth:
- */
- if (i == sample_max_depth)
- __trace_special(tr, data, -1, -1, -1);
-
- __trace_special(tr, data, 3, current->pid, i);
-}
-
-static enum hrtimer_restart stack_trace_timer_fn(struct hrtimer *hrtimer)
-{
- /* trace here */
- timer_notify(get_irq_regs(), smp_processor_id());
-
- hrtimer_forward_now(hrtimer, ns_to_ktime(sample_period));
-
- return HRTIMER_RESTART;
-}
-
-static void start_stack_timer(void *unused)
-{
- struct hrtimer *hrtimer = &__get_cpu_var(stack_trace_hrtimer);
-
- hrtimer_init(hrtimer, CLOCK_MONOTONIC, HRTIMER_MODE_REL);
- hrtimer->function = stack_trace_timer_fn;
-
- hrtimer_start(hrtimer, ns_to_ktime(sample_period),
- HRTIMER_MODE_REL_PINNED);
-}
-
-static void start_stack_timers(void)
-{
- on_each_cpu(start_stack_timer, NULL, 1);
-}
-
-static void stop_stack_timer(int cpu)
-{
- struct hrtimer *hrtimer = &per_cpu(stack_trace_hrtimer, cpu);
-
- hrtimer_cancel(hrtimer);
-}
-
-static void stop_stack_timers(void)
-{
- int cpu;
-
- for_each_online_cpu(cpu)
- stop_stack_timer(cpu);
-}
-
-static void stop_stack_trace(struct trace_array *tr)
-{
- mutex_lock(&sample_timer_lock);
- stop_stack_timers();
- tracer_enabled = 0;
- mutex_unlock(&sample_timer_lock);
-}
-
-static int stack_trace_init(struct trace_array *tr)
-{
- sysprof_trace = tr;
-
- tracing_start_cmdline_record();
-
- mutex_lock(&sample_timer_lock);
- start_stack_timers();
- tracer_enabled = 1;
- mutex_unlock(&sample_timer_lock);
- return 0;
-}
-
-static void stack_trace_reset(struct trace_array *tr)
-{
- tracing_stop_cmdline_record();
- stop_stack_trace(tr);
-}
-
-static struct tracer stack_trace __read_mostly =
-{
- .name = "sysprof",
- .init = stack_trace_init,
- .reset = stack_trace_reset,
-#ifdef CONFIG_FTRACE_SELFTEST
- .selftest = trace_selftest_startup_sysprof,
-#endif
-};
-
-__init static int init_stack_trace(void)
-{
- return register_tracer(&stack_trace);
-}
-device_initcall(init_stack_trace);
-
-#define MAX_LONG_DIGITS 22
-
-static ssize_t
-sysprof_sample_read(struct file *filp, char __user *ubuf,
- size_t cnt, loff_t *ppos)
-{
- char buf[MAX_LONG_DIGITS];
- int r;
-
- r = sprintf(buf, "%ld\n", nsecs_to_usecs(sample_period));
-
- return simple_read_from_buffer(ubuf, cnt, ppos, buf, r);
-}
-
-static ssize_t
-sysprof_sample_write(struct file *filp, const char __user *ubuf,
- size_t cnt, loff_t *ppos)
-{
- char buf[MAX_LONG_DIGITS];
- unsigned long val;
-
- if (cnt > MAX_LONG_DIGITS-1)
- cnt = MAX_LONG_DIGITS-1;
-
- if (copy_from_user(&buf, ubuf, cnt))
- return -EFAULT;
-
- buf[cnt] = 0;
-
- val = simple_strtoul(buf, NULL, 10);
- /*
- * Enforce a minimum sample period of 100 usecs:
- */
- if (val < 100)
- val = 100;
-
- mutex_lock(&sample_timer_lock);
- stop_stack_timers();
- sample_period = val * 1000;
- start_stack_timers();
- mutex_unlock(&sample_timer_lock);
-
- return cnt;
-}
-
-static const struct file_operations sysprof_sample_fops = {
- .read = sysprof_sample_read,
- .write = sysprof_sample_write,
-};
-
-void init_tracer_sysprof_debugfs(struct dentry *d_tracer)
-{
-
- trace_create_file("sysprof_sample_period", 0644,
- d_tracer, NULL, &sysprof_sample_fops);
-}
--
1.6.2.3
^ permalink raw reply related [flat|nested] 6+ messages in thread* [RFC PATCH 2/2] tracing: Remove special traces
2010-07-15 23:36 [RFC PATCH 0/2] tracing: Remove sysprof Frederic Weisbecker
2010-07-15 23:36 ` [RFC PATCH 1/2] tracing: Remove sysprof ftrace plugin Frederic Weisbecker
@ 2010-07-15 23:36 ` Frederic Weisbecker
2010-07-16 0:52 ` Li Zefan
2010-07-17 5:28 ` [RFC PATCH 0/2] tracing: Remove sysprof Soeren Sandmann
2 siblings, 1 reply; 6+ messages in thread
From: Frederic Weisbecker @ 2010-07-15 23:36 UTC (permalink / raw)
To: Soeren Sandmann
Cc: LKML, Frederic Weisbecker, Peter Zijlstra, Ingo Molnar,
Steven Rostedt, Soeren Sandmann
Special traces type was only used by sysprof. Lets remove it now
that sysprof ftrace plugin has been dropped.
Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Soeren Sandmann <sandmann@daimi.au.dk>
---
include/linux/kernel.h | 5 ---
include/linux/sched.h | 12 -------
kernel/trace/trace.c | 55 ----------------------------------
kernel/trace/trace.h | 6 ----
kernel/trace/trace_entries.h | 17 ----------
kernel/trace/trace_output.c | 66 -----------------------------------------
kernel/trace/trace_selftest.c | 1 -
7 files changed, 0 insertions(+), 162 deletions(-)
diff --git a/include/linux/kernel.h b/include/linux/kernel.h
index 8317ec4..adee958 100644
--- a/include/linux/kernel.h
+++ b/include/linux/kernel.h
@@ -508,9 +508,6 @@ extern void tracing_start(void);
extern void tracing_stop(void);
extern void ftrace_off_permanent(void);
-extern void
-ftrace_special(unsigned long arg1, unsigned long arg2, unsigned long arg3);
-
static inline void __attribute__ ((format (printf, 1, 2)))
____trace_printk_check_format(const char *fmt, ...)
{
@@ -586,8 +583,6 @@ __ftrace_vprintk(unsigned long ip, const char *fmt, va_list ap);
extern void ftrace_dump(enum ftrace_dump_mode oops_dump_mode);
#else
-static inline void
-ftrace_special(unsigned long arg1, unsigned long arg2, unsigned long arg3) { }
static inline int
trace_printk(const char *fmt, ...) __attribute__ ((format (printf, 1, 2)));
diff --git a/include/linux/sched.h b/include/linux/sched.h
index 747fcae..f751ea9 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -2434,18 +2434,6 @@ static inline void set_task_cpu(struct task_struct *p, unsigned int cpu)
#endif /* CONFIG_SMP */
-#ifdef CONFIG_TRACING
-extern void
-__trace_special(void *__tr, void *__data,
- unsigned long arg1, unsigned long arg2, unsigned long arg3);
-#else
-static inline void
-__trace_special(void *__tr, void *__data,
- unsigned long arg1, unsigned long arg2, unsigned long arg3)
-{
-}
-#endif
-
extern long sched_setaffinity(pid_t pid, const struct cpumask *new_mask);
extern long sched_getaffinity(pid_t pid, struct cpumask *mask);
diff --git a/kernel/trace/trace.c b/kernel/trace/trace.c
index 78a49e6..d9a4aa0 100644
--- a/kernel/trace/trace.c
+++ b/kernel/trace/trace.c
@@ -1331,61 +1331,6 @@ static void __trace_userstack(struct trace_array *tr, unsigned long flags)
#endif /* CONFIG_STACKTRACE */
-static void
-ftrace_trace_special(void *__tr,
- unsigned long arg1, unsigned long arg2, unsigned long arg3,
- int pc)
-{
- struct ftrace_event_call *call = &event_special;
- struct ring_buffer_event *event;
- struct trace_array *tr = __tr;
- struct ring_buffer *buffer = tr->buffer;
- struct special_entry *entry;
-
- event = trace_buffer_lock_reserve(buffer, TRACE_SPECIAL,
- sizeof(*entry), 0, pc);
- if (!event)
- return;
- entry = ring_buffer_event_data(event);
- entry->arg1 = arg1;
- entry->arg2 = arg2;
- entry->arg3 = arg3;
-
- if (!filter_check_discard(call, entry, buffer, event))
- trace_buffer_unlock_commit(buffer, event, 0, pc);
-}
-
-void
-__trace_special(void *__tr, void *__data,
- unsigned long arg1, unsigned long arg2, unsigned long arg3)
-{
- ftrace_trace_special(__tr, arg1, arg2, arg3, preempt_count());
-}
-
-void
-ftrace_special(unsigned long arg1, unsigned long arg2, unsigned long arg3)
-{
- struct trace_array *tr = &global_trace;
- struct trace_array_cpu *data;
- unsigned long flags;
- int cpu;
- int pc;
-
- if (tracing_disabled)
- return;
-
- pc = preempt_count();
- local_irq_save(flags);
- cpu = raw_smp_processor_id();
- data = tr->data[cpu];
-
- if (likely(atomic_inc_return(&data->disabled) == 1))
- ftrace_trace_special(tr, arg1, arg2, arg3, pc);
-
- atomic_dec(&data->disabled);
- local_irq_restore(flags);
-}
-
/**
* trace_vbprintk - write binary msg to tracing buffer
*
diff --git a/kernel/trace/trace.h b/kernel/trace/trace.h
index 2114b4c..2f8619b 100644
--- a/kernel/trace/trace.h
+++ b/kernel/trace/trace.h
@@ -22,7 +22,6 @@ enum trace_type {
TRACE_STACK,
TRACE_PRINT,
TRACE_BPRINT,
- TRACE_SPECIAL,
TRACE_MMIO_RW,
TRACE_MMIO_MAP,
TRACE_BRANCH,
@@ -332,11 +331,6 @@ void tracing_sched_wakeup_trace(struct trace_array *tr,
struct task_struct *wakee,
struct task_struct *cur,
unsigned long flags, int pc);
-void trace_special(struct trace_array *tr,
- struct trace_array_cpu *data,
- unsigned long arg1,
- unsigned long arg2,
- unsigned long arg3, int pc);
void trace_function(struct trace_array *tr,
unsigned long ip,
unsigned long parent_ip,
diff --git a/kernel/trace/trace_entries.h b/kernel/trace/trace_entries.h
index 8412837..e3dfeca 100644
--- a/kernel/trace/trace_entries.h
+++ b/kernel/trace/trace_entries.h
@@ -151,23 +151,6 @@ FTRACE_ENTRY_DUP(wakeup, ctx_switch_entry,
);
/*
- * Special (free-form) trace entry:
- */
-FTRACE_ENTRY(special, special_entry,
-
- TRACE_SPECIAL,
-
- F_STRUCT(
- __field( unsigned long, arg1 )
- __field( unsigned long, arg2 )
- __field( unsigned long, arg3 )
- ),
-
- F_printk("(%08lx) (%08lx) (%08lx)",
- __entry->arg1, __entry->arg2, __entry->arg3)
-);
-
-/*
* Stack-trace entry:
*/
diff --git a/kernel/trace/trace_output.c b/kernel/trace/trace_output.c
index 57c1b45..a46197b 100644
--- a/kernel/trace/trace_output.c
+++ b/kernel/trace/trace_output.c
@@ -1069,65 +1069,6 @@ static struct trace_event trace_wake_event = {
.funcs = &trace_wake_funcs,
};
-/* TRACE_SPECIAL */
-static enum print_line_t trace_special_print(struct trace_iterator *iter,
- int flags, struct trace_event *event)
-{
- struct special_entry *field;
-
- trace_assign_type(field, iter->ent);
-
- if (!trace_seq_printf(&iter->seq, "# %ld %ld %ld\n",
- field->arg1,
- field->arg2,
- field->arg3))
- return TRACE_TYPE_PARTIAL_LINE;
-
- return TRACE_TYPE_HANDLED;
-}
-
-static enum print_line_t trace_special_hex(struct trace_iterator *iter,
- int flags, struct trace_event *event)
-{
- struct special_entry *field;
- struct trace_seq *s = &iter->seq;
-
- trace_assign_type(field, iter->ent);
-
- SEQ_PUT_HEX_FIELD_RET(s, field->arg1);
- SEQ_PUT_HEX_FIELD_RET(s, field->arg2);
- SEQ_PUT_HEX_FIELD_RET(s, field->arg3);
-
- return TRACE_TYPE_HANDLED;
-}
-
-static enum print_line_t trace_special_bin(struct trace_iterator *iter,
- int flags, struct trace_event *event)
-{
- struct special_entry *field;
- struct trace_seq *s = &iter->seq;
-
- trace_assign_type(field, iter->ent);
-
- SEQ_PUT_FIELD_RET(s, field->arg1);
- SEQ_PUT_FIELD_RET(s, field->arg2);
- SEQ_PUT_FIELD_RET(s, field->arg3);
-
- return TRACE_TYPE_HANDLED;
-}
-
-static struct trace_event_functions trace_special_funcs = {
- .trace = trace_special_print,
- .raw = trace_special_print,
- .hex = trace_special_hex,
- .binary = trace_special_bin,
-};
-
-static struct trace_event trace_special_event = {
- .type = TRACE_SPECIAL,
- .funcs = &trace_special_funcs,
-};
-
/* TRACE_STACK */
static enum print_line_t trace_stack_print(struct trace_iterator *iter,
@@ -1161,9 +1102,6 @@ static enum print_line_t trace_stack_print(struct trace_iterator *iter,
static struct trace_event_functions trace_stack_funcs = {
.trace = trace_stack_print,
- .raw = trace_special_print,
- .hex = trace_special_hex,
- .binary = trace_special_bin,
};
static struct trace_event trace_stack_event = {
@@ -1194,9 +1132,6 @@ static enum print_line_t trace_user_stack_print(struct trace_iterator *iter,
static struct trace_event_functions trace_user_stack_funcs = {
.trace = trace_user_stack_print,
- .raw = trace_special_print,
- .hex = trace_special_hex,
- .binary = trace_special_bin,
};
static struct trace_event trace_user_stack_event = {
@@ -1314,7 +1249,6 @@ static struct trace_event *events[] __initdata = {
&trace_fn_event,
&trace_ctx_event,
&trace_wake_event,
- &trace_special_event,
&trace_stack_event,
&trace_user_stack_event,
&trace_bprint_event,
diff --git a/kernel/trace/trace_selftest.c b/kernel/trace/trace_selftest.c
index 6ed05ee..155a415 100644
--- a/kernel/trace/trace_selftest.c
+++ b/kernel/trace/trace_selftest.c
@@ -13,7 +13,6 @@ static inline int trace_valid_entry(struct trace_entry *entry)
case TRACE_WAKE:
case TRACE_STACK:
case TRACE_PRINT:
- case TRACE_SPECIAL:
case TRACE_BRANCH:
case TRACE_GRAPH_ENT:
case TRACE_GRAPH_RET:
--
1.6.2.3
^ permalink raw reply related [flat|nested] 6+ messages in thread