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Diffstat (limited to 'kernel/trace/trace_kprobe.c')
-rw-r--r--kernel/trace/trace_kprobe.c43
1 files changed, 22 insertions, 21 deletions
diff --git a/kernel/trace/trace_kprobe.c b/kernel/trace/trace_kprobe.c
index 7db7b68c6c37..14b88ed65bb7 100644
--- a/kernel/trace/trace_kprobe.c
+++ b/kernel/trace/trace_kprobe.c
@@ -555,12 +555,12 @@ struct trace_probe {
(sizeof(struct probe_arg) * (n)))
-static __kprobes int probe_is_return(struct trace_probe *tp)
+static __kprobes int trace_probe_is_return(struct trace_probe *tp)
{
return tp->rp.handler != NULL;
}
-static __kprobes const char *probe_symbol(struct trace_probe *tp)
+static __kprobes const char *trace_probe_symbol(struct trace_probe *tp)
{
return tp->symbol ? tp->symbol : "unknown";
}
@@ -671,7 +671,7 @@ static void free_trace_probe(struct trace_probe *tp)
kfree(tp);
}
-static struct trace_probe *find_probe_event(const char *event,
+static struct trace_probe *find_trace_probe(const char *event,
const char *group)
{
struct trace_probe *tp;
@@ -686,7 +686,7 @@ static struct trace_probe *find_probe_event(const char *event,
/* Unregister a trace_probe and probe_event: call with locking probe_lock */
static void unregister_trace_probe(struct trace_probe *tp)
{
- if (probe_is_return(tp))
+ if (trace_probe_is_return(tp))
unregister_kretprobe(&tp->rp);
else
unregister_kprobe(&tp->rp.kp);
@@ -703,7 +703,7 @@ static int register_trace_probe(struct trace_probe *tp)
mutex_lock(&probe_lock);
/* register as an event */
- old_tp = find_probe_event(tp->call.name, tp->call.class->system);
+ old_tp = find_trace_probe(tp->call.name, tp->call.class->system);
if (old_tp) {
/* delete old event */
unregister_trace_probe(old_tp);
@@ -716,7 +716,7 @@ static int register_trace_probe(struct trace_probe *tp)
}
tp->rp.kp.flags |= KPROBE_FLAG_DISABLED;
- if (probe_is_return(tp))
+ if (trace_probe_is_return(tp))
ret = register_kretprobe(&tp->rp);
else
ret = register_kprobe(&tp->rp.kp);
@@ -1025,7 +1025,7 @@ static int create_trace_probe(int argc, char **argv)
return -EINVAL;
}
mutex_lock(&probe_lock);
- tp = find_probe_event(event, group);
+ tp = find_trace_probe(event, group);
if (!tp) {
mutex_unlock(&probe_lock);
pr_info("Event %s/%s doesn't exist.\n", group, event);
@@ -1144,7 +1144,7 @@ error:
return ret;
}
-static void cleanup_all_probes(void)
+static void release_all_trace_probes(void)
{
struct trace_probe *tp;
@@ -1181,15 +1181,16 @@ static int probes_seq_show(struct seq_file *m, void *v)
struct trace_probe *tp = v;
int i;
- seq_printf(m, "%c", probe_is_return(tp) ? 'r' : 'p');
+ seq_printf(m, "%c", trace_probe_is_return(tp) ? 'r' : 'p');
seq_printf(m, ":%s/%s", tp->call.class->system, tp->call.name);
if (!tp->symbol)
seq_printf(m, " 0x%p", tp->rp.kp.addr);
else if (tp->rp.kp.offset)
- seq_printf(m, " %s+%u", probe_symbol(tp), tp->rp.kp.offset);
+ seq_printf(m, " %s+%u", trace_probe_symbol(tp),
+ tp->rp.kp.offset);
else
- seq_printf(m, " %s", probe_symbol(tp));
+ seq_printf(m, " %s", trace_probe_symbol(tp));
for (i = 0; i < tp->nr_args; i++)
seq_printf(m, " %s=%s", tp->args[i].name, tp->args[i].comm);
@@ -1209,7 +1210,7 @@ static int probes_open(struct inode *inode, struct file *file)
{
if ((file->f_mode & FMODE_WRITE) &&
(file->f_flags & O_TRUNC))
- cleanup_all_probes();
+ release_all_trace_probes();
return seq_open(file, &probes_seq_op);
}
@@ -1518,7 +1519,7 @@ static int probe_event_enable(struct ftrace_event_call *call)
struct trace_probe *tp = (struct trace_probe *)call->data;
tp->flags |= TP_FLAG_TRACE;
- if (probe_is_return(tp))
+ if (trace_probe_is_return(tp))
return enable_kretprobe(&tp->rp);
else
return enable_kprobe(&tp->rp.kp);
@@ -1530,7 +1531,7 @@ static void probe_event_disable(struct ftrace_event_call *call)
tp->flags &= ~TP_FLAG_TRACE;
if (!(tp->flags & (TP_FLAG_TRACE | TP_FLAG_PROFILE))) {
- if (probe_is_return(tp))
+ if (trace_probe_is_return(tp))
disable_kretprobe(&tp->rp);
else
disable_kprobe(&tp->rp.kp);
@@ -1598,7 +1599,7 @@ static int __set_print_fmt(struct trace_probe *tp, char *buf, int len)
const char *fmt, *arg;
- if (!probe_is_return(tp)) {
+ if (!trace_probe_is_return(tp)) {
fmt = "(%lx)";
arg = "REC->" FIELD_STRING_IP;
} else {
@@ -1722,7 +1723,7 @@ static int probe_perf_enable(struct ftrace_event_call *call)
tp->flags |= TP_FLAG_PROFILE;
- if (probe_is_return(tp))
+ if (trace_probe_is_return(tp))
return enable_kretprobe(&tp->rp);
else
return enable_kprobe(&tp->rp.kp);
@@ -1735,7 +1736,7 @@ static void probe_perf_disable(struct ftrace_event_call *call)
tp->flags &= ~TP_FLAG_PROFILE;
if (!(tp->flags & TP_FLAG_TRACE)) {
- if (probe_is_return(tp))
+ if (trace_probe_is_return(tp))
disable_kretprobe(&tp->rp);
else
disable_kprobe(&tp->rp.kp);
@@ -1807,7 +1808,7 @@ static int register_probe_event(struct trace_probe *tp)
/* Initialize ftrace_event_call */
INIT_LIST_HEAD(&call->class->fields);
- if (probe_is_return(tp)) {
+ if (trace_probe_is_return(tp)) {
call->event.funcs = &kretprobe_funcs;
call->class->define_fields = kretprobe_event_define_fields;
} else {
@@ -1899,7 +1900,7 @@ static __init int kprobe_trace_self_tests_init(void)
warn++;
} else {
/* Enable trace point */
- tp = find_probe_event("testprobe", KPROBE_EVENT_SYSTEM);
+ tp = find_trace_probe("testprobe", KPROBE_EVENT_SYSTEM);
if (WARN_ON_ONCE(tp == NULL)) {
pr_warning("error on getting new probe.\n");
warn++;
@@ -1914,7 +1915,7 @@ static __init int kprobe_trace_self_tests_init(void)
warn++;
} else {
/* Enable trace point */
- tp = find_probe_event("testprobe2", KPROBE_EVENT_SYSTEM);
+ tp = find_trace_probe("testprobe2", KPROBE_EVENT_SYSTEM);
if (WARN_ON_ONCE(tp == NULL)) {
pr_warning("error on getting new probe.\n");
warn++;
@@ -1940,7 +1941,7 @@ static __init int kprobe_trace_self_tests_init(void)
}
end:
- cleanup_all_probes();
+ release_all_trace_probes();
if (warn)
pr_cont("NG: Some tests are failed. Please check them.\n");
else
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-25 16:25:31 +0000