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-rw-r--r--Documentation/tools/rtla/common_hist_options.rst2
-rw-r--r--Documentation/tools/rtla/common_osnoise_description.rst2
-rw-r--r--Documentation/tools/rtla/rtla-osnoise-hist.rst2
-rw-r--r--fs/tracefs/inode.c5
-rw-r--r--include/linux/trace_events.h22
-rw-r--r--kernel/trace/ftrace.c1
-rw-r--r--kernel/trace/trace.c10
-rw-r--r--kernel/trace/trace.h1
-rw-r--r--kernel/trace/trace_eprobe.c16
-rw-r--r--kernel/trace/trace_events_trigger.c73
-rw-r--r--kernel/trace/trace_osnoise.c53
-rw-r--r--kernel/trace/trace_probe.c10
-rw-r--r--kernel/trace/trace_probe.h1
-rw-r--r--kernel/trace/trace_selftest.c6
-rw-r--r--tools/tracing/rtla/src/osnoise.c2
-rw-r--r--tools/tracing/rtla/src/osnoise_hist.c10
-rw-r--r--tools/tracing/rtla/src/osnoise_top.c1
-rw-r--r--tools/tracing/rtla/src/timerlat_hist.c10
18 files changed, 148 insertions, 79 deletions
diff --git a/Documentation/tools/rtla/common_hist_options.rst b/Documentation/tools/rtla/common_hist_options.rst
index 0266cd08a6c9..df53ff835bfb 100644
--- a/Documentation/tools/rtla/common_hist_options.rst
+++ b/Documentation/tools/rtla/common_hist_options.rst
@@ -2,7 +2,7 @@
Set the histogram bucket size (default *1*).
-**-e**, **--entries** *N*
+**-E**, **--entries** *N*
Set the number of entries of the histogram (default 256).
diff --git a/Documentation/tools/rtla/common_osnoise_description.rst b/Documentation/tools/rtla/common_osnoise_description.rst
index 8973c5df888f..d5d61615b967 100644
--- a/Documentation/tools/rtla/common_osnoise_description.rst
+++ b/Documentation/tools/rtla/common_osnoise_description.rst
@@ -1,7 +1,7 @@
The **rtla osnoise** tool is an interface for the *osnoise* tracer. The
*osnoise* tracer dispatches a kernel thread per-cpu. These threads read the
time in a loop while with preemption, softirq and IRQs enabled, thus
-allowing all the sources of operating systme noise during its execution.
+allowing all the sources of operating system noise during its execution.
The *osnoise*'s tracer threads take note of the delta between each time
read, along with an interference counter of all sources of interference.
At the end of each period, the *osnoise* tracer displays a summary of
diff --git a/Documentation/tools/rtla/rtla-osnoise-hist.rst b/Documentation/tools/rtla/rtla-osnoise-hist.rst
index 52298ddd8701..f2e79d22c4c4 100644
--- a/Documentation/tools/rtla/rtla-osnoise-hist.rst
+++ b/Documentation/tools/rtla/rtla-osnoise-hist.rst
@@ -36,7 +36,7 @@ default). The reason for reducing the runtime is to avoid starving the
**rtla** tool. The tool is also set to run for *one minute*. The output
histogram is set to group outputs in buckets of *10us* and *25* entries::
- [root@f34 ~/]# rtla osnoise hist -P F:1 -c 0-11 -r 900000 -d 1M -b 10 -e 25
+ [root@f34 ~/]# rtla osnoise hist -P F:1 -c 0-11 -r 900000 -d 1M -b 10 -E 25
# RTLA osnoise histogram
# Time unit is microseconds (us)
# Duration: 0 00:01:00
diff --git a/fs/tracefs/inode.c b/fs/tracefs/inode.c
index bafc02bf8220..de7252715b12 100644
--- a/fs/tracefs/inode.c
+++ b/fs/tracefs/inode.c
@@ -264,7 +264,6 @@ static int tracefs_parse_options(char *data, struct tracefs_mount_opts *opts)
if (!gid_valid(gid))
return -EINVAL;
opts->gid = gid;
- set_gid(tracefs_mount->mnt_root, gid);
break;
case Opt_mode:
if (match_octal(&args[0], &option))
@@ -291,7 +290,9 @@ static int tracefs_apply_options(struct super_block *sb)
inode->i_mode |= opts->mode;
inode->i_uid = opts->uid;
- inode->i_gid = opts->gid;
+
+ /* Set all the group ids to the mount option */
+ set_gid(sb->s_root, opts->gid);
return 0;
}
diff --git a/include/linux/trace_events.h b/include/linux/trace_events.h
index 70c069aef02c..dcea51fb60e2 100644
--- a/include/linux/trace_events.h
+++ b/include/linux/trace_events.h
@@ -699,6 +699,8 @@ event_triggers_post_call(struct trace_event_file *file,
bool trace_event_ignore_this_pid(struct trace_event_file *trace_file);
+bool __trace_trigger_soft_disabled(struct trace_event_file *file);
+
/**
* trace_trigger_soft_disabled - do triggers and test if soft disabled
* @file: The file pointer of the event to test
@@ -708,20 +710,20 @@ bool trace_event_ignore_this_pid(struct trace_event_file *trace_file);
* triggers that require testing the fields, it will return true,
* otherwise false.
*/
-static inline bool
+static __always_inline bool
trace_trigger_soft_disabled(struct trace_event_file *file)
{
unsigned long eflags = file->flags;
- if (!(eflags & EVENT_FILE_FL_TRIGGER_COND)) {
- if (eflags & EVENT_FILE_FL_TRIGGER_MODE)
- event_triggers_call(file, NULL, NULL, NULL);
- if (eflags & EVENT_FILE_FL_SOFT_DISABLED)
- return true;
- if (eflags & EVENT_FILE_FL_PID_FILTER)
- return trace_event_ignore_this_pid(file);
- }
- return false;
+ if (likely(!(eflags & (EVENT_FILE_FL_TRIGGER_MODE |
+ EVENT_FILE_FL_SOFT_DISABLED |
+ EVENT_FILE_FL_PID_FILTER))))
+ return false;
+
+ if (likely(eflags & EVENT_FILE_FL_TRIGGER_COND))
+ return false;
+
+ return __trace_trigger_soft_disabled(file);
}
#ifdef CONFIG_BPF_EVENTS
diff --git a/kernel/trace/ftrace.c b/kernel/trace/ftrace.c
index f9feb197b2da..a4b462b6f944 100644
--- a/kernel/trace/ftrace.c
+++ b/kernel/trace/ftrace.c
@@ -7191,7 +7191,6 @@ static int __init ftrace_nodyn_init(void)
core_initcall(ftrace_nodyn_init);
static inline int ftrace_init_dyn_tracefs(struct dentry *d_tracer) { return 0; }
-static inline void ftrace_startup_enable(int command) { }
static inline void ftrace_startup_all(int command) { }
# define ftrace_startup_sysctl() do { } while (0)
diff --git a/kernel/trace/trace.c b/kernel/trace/trace.c
index 7c2578efde26..3050892d1812 100644
--- a/kernel/trace/trace.c
+++ b/kernel/trace/trace.c
@@ -1474,10 +1474,12 @@ static int __init set_buf_size(char *str)
if (!str)
return 0;
buf_size = memparse(str, &str);
- /* nr_entries can not be zero */
- if (buf_size == 0)
- return 0;
- trace_buf_size = buf_size;
+ /*
+ * nr_entries can not be zero and the startup
+ * tests require some buffer space. Therefore
+ * ensure we have at least 4096 bytes of buffer.
+ */
+ trace_buf_size = max(4096UL, buf_size);
return 1;
}
__setup("trace_buf_size=", set_buf_size);
diff --git a/kernel/trace/trace.h b/kernel/trace/trace.h
index d038ddbf1bea..c5b09c31e077 100644
--- a/kernel/trace/trace.h
+++ b/kernel/trace/trace.h
@@ -136,7 +136,6 @@ struct kprobe_trace_entry_head {
struct eprobe_trace_entry_head {
struct trace_entry ent;
- unsigned int type;
};
struct kretprobe_trace_entry_head {
diff --git a/kernel/trace/trace_eprobe.c b/kernel/trace/trace_eprobe.c
index 191db32dec46..541aa13581b9 100644
--- a/kernel/trace/trace_eprobe.c
+++ b/kernel/trace/trace_eprobe.c
@@ -242,7 +242,6 @@ static int trace_eprobe_tp_arg_update(struct trace_eprobe *ep, int i)
static int eprobe_event_define_fields(struct trace_event_call *event_call)
{
- int ret;
struct eprobe_trace_entry_head field;
struct trace_probe *tp;
@@ -250,8 +249,6 @@ static int eprobe_event_define_fields(struct trace_event_call *event_call)
if (WARN_ON_ONCE(!tp))
return -ENOENT;
- DEFINE_FIELD(unsigned int, type, FIELD_STRING_TYPE, 0);
-
return traceprobe_define_arg_fields(event_call, sizeof(field), tp);
}
@@ -270,7 +267,9 @@ print_eprobe_event(struct trace_iterator *iter, int flags,
struct trace_event_call *pevent;
struct trace_event *probed_event;
struct trace_seq *s = &iter->seq;
+ struct trace_eprobe *ep;
struct trace_probe *tp;
+ unsigned int type;
field = (struct eprobe_trace_entry_head *)iter->ent;
tp = trace_probe_primary_from_call(
@@ -278,15 +277,18 @@ print_eprobe_event(struct trace_iterator *iter, int flags,
if (WARN_ON_ONCE(!tp))
goto out;
+ ep = container_of(tp, struct trace_eprobe, tp);
+ type = ep->event->event.type;
+
trace_seq_printf(s, "%s: (", trace_probe_name(tp));
- probed_event = ftrace_find_event(field->type);
+ probed_event = ftrace_find_event(type);
if (probed_event) {
pevent = container_of(probed_event, struct trace_event_call, event);
trace_seq_printf(s, "%s.%s", pevent->class->system,
trace_event_name(pevent));
} else {
- trace_seq_printf(s, "%u", field->type);
+ trace_seq_printf(s, "%u", type);
}
trace_seq_putc(s, ')');
@@ -498,10 +500,6 @@ __eprobe_trace_func(struct eprobe_data *edata, void *rec)
return;
entry = fbuffer.entry = ring_buffer_event_data(fbuffer.event);
- if (edata->ep->event)
- entry->type = edata->ep->event->event.type;
- else
- entry->type = 0;
store_trace_args(&entry[1], &edata->ep->tp, rec, sizeof(*entry), dsize);
trace_event_buffer_commit(&fbuffer);
diff --git a/kernel/trace/trace_events_trigger.c b/kernel/trace/trace_events_trigger.c
index d00fee705f9c..7eb9d04f1c2e 100644
--- a/kernel/trace/trace_events_trigger.c
+++ b/kernel/trace/trace_events_trigger.c
@@ -84,6 +84,20 @@ event_triggers_call(struct trace_event_file *file,
}
EXPORT_SYMBOL_GPL(event_triggers_call);
+bool __trace_trigger_soft_disabled(struct trace_event_file *file)
+{
+ unsigned long eflags = file->flags;
+
+ if (eflags & EVENT_FILE_FL_TRIGGER_MODE)
+ event_triggers_call(file, NULL, NULL, NULL);
+ if (eflags & EVENT_FILE_FL_SOFT_DISABLED)
+ return true;
+ if (eflags & EVENT_FILE_FL_PID_FILTER)
+ return trace_event_ignore_this_pid(file);
+ return false;
+}
+EXPORT_SYMBOL_GPL(__trace_trigger_soft_disabled);
+
/**
* event_triggers_post_call - Call 'post_triggers' for a trace event
* @file: The trace_event_file associated with the event
@@ -1295,6 +1309,16 @@ traceon_trigger(struct event_trigger_data *data,
struct trace_buffer *buffer, void *rec,
struct ring_buffer_event *event)
{
+ struct trace_event_file *file = data->private_data;
+
+ if (file) {
+ if (tracer_tracing_is_on(file->tr))
+ return;
+
+ tracer_tracing_on(file->tr);
+ return;
+ }
+
if (tracing_is_on())
return;
@@ -1306,8 +1330,15 @@ traceon_count_trigger(struct event_trigger_data *data,
struct trace_buffer *buffer, void *rec,
struct ring_buffer_event *event)
{
- if (tracing_is_on())
- return;
+ struct trace_event_file *file = data->private_data;
+
+ if (file) {
+ if (tracer_tracing_is_on(file->tr))
+ return;
+ } else {
+ if (tracing_is_on())
+ return;
+ }
if (!data->count)
return;
@@ -1315,7 +1346,10 @@ traceon_count_trigger(struct event_trigger_data *data,
if (data->count != -1)
(data->count)--;
- tracing_on();
+ if (file)
+ tracer_tracing_on(file->tr);
+ else
+ tracing_on();
}
static void
@@ -1323,6 +1357,16 @@ traceoff_trigger(struct event_trigger_data *data,
struct trace_buffer *buffer, void *rec,
struct ring_buffer_event *event)
{
+ struct trace_event_file *file = data->private_data;
+
+ if (file) {
+ if (!tracer_tracing_is_on(file->tr))
+ return;
+
+ tracer_tracing_off(file->tr);
+ return;
+ }
+
if (!tracing_is_on())
return;
@@ -1334,8 +1378,15 @@ traceoff_count_trigger(struct event_trigger_data *data,
struct trace_buffer *buffer, void *rec,
struct ring_buffer_event *event)
{
- if (!tracing_is_on())
- return;
+ struct trace_event_file *file = data->private_data;
+
+ if (file) {
+ if (!tracer_tracing_is_on(file->tr))
+ return;
+ } else {
+ if (!tracing_is_on())
+ return;
+ }
if (!data->count)
return;
@@ -1343,7 +1394,10 @@ traceoff_count_trigger(struct event_trigger_data *data,
if (data->count != -1)
(data->count)--;
- tracing_off();
+ if (file)
+ tracer_tracing_off(file->tr);
+ else
+ tracing_off();
}
static int
@@ -1540,7 +1594,12 @@ stacktrace_trigger(struct event_trigger_data *data,
struct trace_buffer *buffer, void *rec,
struct ring_buffer_event *event)
{
- trace_dump_stack(STACK_SKIP);
+ struct trace_event_file *file = data->private_data;
+
+ if (file)
+ __trace_stack(file->tr, tracing_gen_ctx(), STACK_SKIP);
+ else
+ trace_dump_stack(STACK_SKIP);
}
static void
diff --git a/kernel/trace/trace_osnoise.c b/kernel/trace/trace_osnoise.c
index 870a08da5b48..cfddb30e65ab 100644
--- a/kernel/trace/trace_osnoise.c
+++ b/kernel/trace/trace_osnoise.c
@@ -1437,6 +1437,37 @@ static struct cpumask osnoise_cpumask;
static struct cpumask save_cpumask;
/*
+ * osnoise_sleep - sleep until the next period
+ */
+static void osnoise_sleep(void)
+{
+ u64 interval;
+ ktime_t wake_time;
+
+ mutex_lock(&interface_lock);
+ interval = osnoise_data.sample_period - osnoise_data.sample_runtime;
+ mutex_unlock(&interface_lock);
+
+ /*
+ * differently from hwlat_detector, the osnoise tracer can run
+ * without a pause because preemption is on.
+ */
+ if (!interval) {
+ /* Let synchronize_rcu_tasks() make progress */
+ cond_resched_tasks_rcu_qs();
+ return;
+ }
+
+ wake_time = ktime_add_us(ktime_get(), interval);
+ __set_current_state(TASK_INTERRUPTIBLE);
+
+ while (schedule_hrtimeout_range(&wake_time, 0, HRTIMER_MODE_ABS)) {
+ if (kthread_should_stop())
+ break;
+ }
+}
+
+/*
* osnoise_main - The osnoise detection kernel thread
*
* Calls run_osnoise() function to measure the osnoise for the configured runtime,
@@ -1444,30 +1475,10 @@ static struct cpumask save_cpumask;
*/
static int osnoise_main(void *data)
{
- u64 interval;
while (!kthread_should_stop()) {
-
run_osnoise();
-
- mutex_lock(&interface_lock);
- interval = osnoise_data.sample_period - osnoise_data.sample_runtime;
- mutex_unlock(&interface_lock);
-
- do_div(interval, USEC_PER_MSEC);
-
- /*
- * differently from hwlat_detector, the osnoise tracer can run
- * without a pause because preemption is on.
- */
- if (interval < 1) {
- /* Let synchronize_rcu_tasks() make progress */
- cond_resched_tasks_rcu_qs();
- continue;
- }
-
- if (msleep_interruptible(interval))
- break;
+ osnoise_sleep();
}
return 0;
diff --git a/kernel/trace/trace_probe.c b/kernel/trace/trace_probe.c
index 73d90179b51b..80863c6508e5 100644
--- a/kernel/trace/trace_probe.c
+++ b/kernel/trace/trace_probe.c
@@ -871,15 +871,15 @@ static int __set_print_fmt(struct trace_probe *tp, char *buf, int len,
switch (ptype) {
case PROBE_PRINT_NORMAL:
fmt = "(%lx)";
- arg = "REC->" FIELD_STRING_IP;
+ arg = ", REC->" FIELD_STRING_IP;
break;
case PROBE_PRINT_RETURN:
fmt = "(%lx <- %lx)";
- arg = "REC->" FIELD_STRING_FUNC ", REC->" FIELD_STRING_RETIP;
+ arg = ", REC->" FIELD_STRING_FUNC ", REC->" FIELD_STRING_RETIP;
break;
case PROBE_PRINT_EVENT:
- fmt = "(%u)";
- arg = "REC->" FIELD_STRING_TYPE;
+ fmt = "";
+ arg = "";
break;
default:
WARN_ON_ONCE(1);
@@ -903,7 +903,7 @@ static int __set_print_fmt(struct trace_probe *tp, char *buf, int len,
parg->type->fmt);
}
- pos += snprintf(buf + pos, LEN_OR_ZERO, "\", %s", arg);
+ pos += snprintf(buf + pos, LEN_OR_ZERO, "\"%s", arg);
for (i = 0; i < tp->nr_args; i++) {
parg = tp->args + i;
diff --git a/kernel/trace/trace_probe.h b/kernel/trace/trace_probe.h
index 99e7a5df025e..92cc149af0fd 100644
--- a/kernel/trace/trace_probe.h
+++ b/kernel/trace/trace_probe.h
@@ -38,7 +38,6 @@
#define FIELD_STRING_IP "__probe_ip"
#define FIELD_STRING_RETIP "__probe_ret_ip"
#define FIELD_STRING_FUNC "__probe_func"
-#define FIELD_STRING_TYPE "__probe_type"
#undef DEFINE_FIELD
#define DEFINE_FIELD(type, item, name, is_signed) \
diff --git a/kernel/trace/trace_selftest.c b/kernel/trace/trace_selftest.c
index afd937a46496..abcadbe933bb 100644
--- a/kernel/trace/trace_selftest.c
+++ b/kernel/trace/trace_selftest.c
@@ -784,9 +784,7 @@ static struct fgraph_ops fgraph_ops __initdata = {
.retfunc = &trace_graph_return,
};
-#if defined(CONFIG_DYNAMIC_FTRACE) && \
- defined(CONFIG_HAVE_DYNAMIC_FTRACE_WITH_ARGS)
-#define TEST_DIRECT_TRAMP
+#ifdef CONFIG_DYNAMIC_FTRACE_WITH_DIRECT_CALLS
noinline __noclone static void trace_direct_tramp(void) { }
#endif
@@ -849,7 +847,7 @@ trace_selftest_startup_function_graph(struct tracer *trace,
goto out;
}
-#ifdef TEST_DIRECT_TRAMP
+#ifdef CONFIG_DYNAMIC_FTRACE_WITH_DIRECT_CALLS
tracing_reset_online_cpus(&tr->array_buffer);
set_graph_array(tr);
diff --git a/tools/tracing/rtla/src/osnoise.c b/tools/tracing/rtla/src/osnoise.c
index 5648f9252e58..e60f1862bad0 100644
--- a/tools/tracing/rtla/src/osnoise.c
+++ b/tools/tracing/rtla/src/osnoise.c
@@ -810,7 +810,7 @@ struct osnoise_tool *osnoise_init_trace_tool(char *tracer)
retval = enable_tracer_by_name(trace->trace.inst, tracer);
if (retval) {
- err_msg("Could not enable osnoiser tracer for tracing\n");
+ err_msg("Could not enable %s tracer for tracing\n", tracer);
goto out_err;
}
diff --git a/tools/tracing/rtla/src/osnoise_hist.c b/tools/tracing/rtla/src/osnoise_hist.c
index 1f0b7fce55cf..52c053cc1789 100644
--- a/tools/tracing/rtla/src/osnoise_hist.c
+++ b/tools/tracing/rtla/src/osnoise_hist.c
@@ -426,7 +426,7 @@ static void osnoise_hist_usage(char *usage)
static const char * const msg[] = {
"",
" usage: rtla osnoise hist [-h] [-D] [-d s] [-p us] [-r us] [-s us] [-S us] [-t[=file]] \\",
- " [-c cpu-list] [-P priority] [-b N] [-e N] [--no-header] [--no-summary] \\",
+ " [-c cpu-list] [-P priority] [-b N] [-E N] [--no-header] [--no-summary] \\",
" [--no-index] [--with-zeros]",
"",
" -h/--help: print this menu",
@@ -439,7 +439,7 @@ static void osnoise_hist_usage(char *usage)
" -D/--debug: print debug info",
" -t/--trace[=file]: save the stopped trace to [file|osnoise_trace.txt]",
" -b/--bucket-size N: set the histogram bucket size (default 1)",
- " -e/--entries N: set the number of entries of the histogram (default 256)",
+ " -E/--entries N: set the number of entries of the histogram (default 256)",
" --no-header: do not print header",
" --no-summary: do not print summary",
" --no-index: do not print index",
@@ -486,7 +486,7 @@ static struct osnoise_hist_params
while (1) {
static struct option long_options[] = {
{"bucket-size", required_argument, 0, 'b'},
- {"entries", required_argument, 0, 'e'},
+ {"entries", required_argument, 0, 'E'},
{"cpus", required_argument, 0, 'c'},
{"debug", no_argument, 0, 'D'},
{"duration", required_argument, 0, 'd'},
@@ -507,7 +507,7 @@ static struct osnoise_hist_params
/* getopt_long stores the option index here. */
int option_index = 0;
- c = getopt_long(argc, argv, "c:b:d:e:Dhp:P:r:s:S:t::0123",
+ c = getopt_long(argc, argv, "c:b:d:E:Dhp:P:r:s:S:t::0123",
long_options, &option_index);
/* detect the end of the options. */
@@ -534,7 +534,7 @@ static struct osnoise_hist_params
if (!params->duration)
osnoise_hist_usage("Invalid -D duration\n");
break;
- case 'e':
+ case 'E':
params->entries = get_llong_from_str(optarg);
if ((params->entries < 10) || (params->entries > 9999999))
osnoise_hist_usage("Entries must be > 10 and < 9999999\n");
diff --git a/tools/tracing/rtla/src/osnoise_top.c b/tools/tracing/rtla/src/osnoise_top.c
index c67dc28ef716..7af769b9c0de 100644
--- a/tools/tracing/rtla/src/osnoise_top.c
+++ b/tools/tracing/rtla/src/osnoise_top.c
@@ -573,6 +573,7 @@ out_top:
osnoise_free_top(tool->data);
osnoise_destroy_tool(record);
osnoise_destroy_tool(tool);
+ free(params);
out_exit:
exit(return_value);
}
diff --git a/tools/tracing/rtla/src/timerlat_hist.c b/tools/tracing/rtla/src/timerlat_hist.c
index 436a799f9adf..237e1735afa7 100644
--- a/tools/tracing/rtla/src/timerlat_hist.c
+++ b/tools/tracing/rtla/src/timerlat_hist.c
@@ -429,7 +429,7 @@ static void timerlat_hist_usage(char *usage)
char *msg[] = {
"",
" usage: [rtla] timerlat hist [-h] [-q] [-d s] [-D] [-n] [-p us] [-i us] [-T us] [-s us] [-t[=file]] \\",
- " [-c cpu-list] [-P priority] [-e N] [-b N] [--no-irq] [--no-thread] [--no-header] [--no-summary] \\",
+ " [-c cpu-list] [-P priority] [-E N] [-b N] [--no-irq] [--no-thread] [--no-header] [--no-summary] \\",
" [--no-index] [--with-zeros]",
"",
" -h/--help: print this menu",
@@ -443,7 +443,7 @@ static void timerlat_hist_usage(char *usage)
" -T/--trace[=file]: save the stopped trace to [file|timerlat_trace.txt]",
" -n/--nano: display data in nanoseconds",
" -b/--bucket-size N: set the histogram bucket size (default 1)",
- " -e/--entries N: set the number of entries of the histogram (default 256)",
+ " -E/--entries N: set the number of entries of the histogram (default 256)",
" --no-irq: ignore IRQ latencies",
" --no-thread: ignore thread latencies",
" --no-header: do not print header",
@@ -494,7 +494,7 @@ static struct timerlat_hist_params
{"cpus", required_argument, 0, 'c'},
{"bucket-size", required_argument, 0, 'b'},
{"debug", no_argument, 0, 'D'},
- {"entries", required_argument, 0, 'e'},
+ {"entries", required_argument, 0, 'E'},
{"duration", required_argument, 0, 'd'},
{"help", no_argument, 0, 'h'},
{"irq", required_argument, 0, 'i'},
@@ -516,7 +516,7 @@ static struct timerlat_hist_params
/* getopt_long stores the option index here. */
int option_index = 0;
- c = getopt_long(argc, argv, "c:b:d:e:Dhi:np:P:s:t::T:012345",
+ c = getopt_long(argc, argv, "c:b:d:E:Dhi:np:P:s:t::T:012345",
long_options, &option_index);
/* detect the end of the options. */
@@ -543,7 +543,7 @@ static struct timerlat_hist_params
if (!params->duration)
timerlat_hist_usage("Invalid -D duration\n");
break;
- case 'e':
+ case 'E':
params->entries = get_llong_from_str(optarg);
if ((params->entries < 10) || (params->entries > 9999999))
timerlat_hist_usage("Entries must be > 10 and < 9999999\n");
generated by cgit v1.2.3 (git 2.39.0) at 2024-11-27 11:25:10 +0300