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| author | Xiao Guangrong <xiaoguangrong@cn.fujitsu.com> | 2009-07-16 14:21:08 +0800 |
|---|---|---|
| committer | Frederic Weisbecker <fweisbec@gmail.com> | 2009-07-17 01:45:51 -0400 |
| commit | 6f2f3cf00ee32f75ba007a46bab88a54d68a5deb (patch) | |
| tree | 89aaab40d502c84e135b7e9e72b20bb7d498bc8c | |
| parent | 79173bf556417a737e9d2e096e0788452ec30a61 (diff) | |
| download | linux-6f2f3cf00ee32f75ba007a46bab88a54d68a5deb.tar.gz linux-6f2f3cf00ee32f75ba007a46bab88a54d68a5deb.tar.bz2 linux-6f2f3cf00ee32f75ba007a46bab88a54d68a5deb.zip | |
tracing/function: Cleanup for function tracer
We can directly use %pf input format instead of kallsyms_lookup()
and %s input format
Signed-off-by: Xiao Guangrong <xiaoguangrong@cn.fujitsu.com>
Reviewed-by: Li Zefan <lizf@cn.fujitsu.com>
Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
| -rw-r--r-- | kernel/trace/ftrace.c | 17 | ||||
| -rw-r--r-- | kernel/trace/trace_functions.c | 4 |
2 files changed, 4 insertions, 17 deletions
diff --git a/kernel/trace/ftrace.c b/kernel/trace/ftrace.c index 217caeca71cd..80a97a51442d 100644 --- a/kernel/trace/ftrace.c +++ b/kernel/trace/ftrace.c @@ -1403,18 +1403,13 @@ static int t_hash_show(struct seq_file *m, void *v) { struct ftrace_func_probe *rec; struct hlist_node *hnd = v; - char str[KSYM_SYMBOL_LEN]; rec = hlist_entry(hnd, struct ftrace_func_probe, node); if (rec->ops->print) return rec->ops->print(m, rec->ip, rec->ops, rec->data); - kallsyms_lookup(rec->ip, NULL, NULL, NULL, str); - seq_printf(m, "%s:", str); - - kallsyms_lookup((unsigned long)rec->ops->func, NULL, NULL, NULL, str); - seq_printf(m, "%s", str); + seq_printf(m, "%pf:%pf", (void *)rec->ip, (void *)rec->ops->func); if (rec->data) seq_printf(m, ":%p", rec->data); @@ -1512,7 +1507,6 @@ static int t_show(struct seq_file *m, void *v) { struct ftrace_iterator *iter = m->private; struct dyn_ftrace *rec = v; - char str[KSYM_SYMBOL_LEN]; if (iter->flags & FTRACE_ITER_HASH) return t_hash_show(m, v); @@ -1525,9 +1519,7 @@ static int t_show(struct seq_file *m, void *v) if (!rec) return 0; - kallsyms_lookup(rec->ip, NULL, NULL, NULL, str); - - seq_printf(m, "%s\n", str); + seq_printf(m, "%pf\n", (void *)rec->ip); return 0; } @@ -2508,7 +2500,6 @@ static void g_stop(struct seq_file *m, void *p) static int g_show(struct seq_file *m, void *v) { unsigned long *ptr = v; - char str[KSYM_SYMBOL_LEN]; if (!ptr) return 0; @@ -2518,9 +2509,7 @@ static int g_show(struct seq_file *m, void *v) return 0; } - kallsyms_lookup(*ptr, NULL, NULL, NULL, str); - - seq_printf(m, "%s\n", str); + seq_printf(m, "%pf\n", v); return 0; } diff --git a/kernel/trace/trace_functions.c b/kernel/trace/trace_functions.c index 7402144bff21..b53dc994dfb6 100644 --- a/kernel/trace/trace_functions.c +++ b/kernel/trace/trace_functions.c @@ -288,11 +288,9 @@ static int ftrace_trace_onoff_print(struct seq_file *m, unsigned long ip, struct ftrace_probe_ops *ops, void *data) { - char str[KSYM_SYMBOL_LEN]; long count = (long)data; - kallsyms_lookup(ip, NULL, NULL, NULL, str); - seq_printf(m, "%s:", str); + seq_printf(m, "%pf:", (void *)ip); if (ops == &traceon_probe_ops) seq_printf(m, "traceon"); |