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| author | Masami Hiramatsu <mhiramat@kernel.org> | 2019-06-01 00:17:06 +0900 |
|---|---|---|
| committer | Steven Rostedt (VMware) <rostedt@goodmis.org> | 2019-07-16 15:14:47 -0400 |
| commit | 455b289973f7df350ea179c7eb8bfed0c766ec40 (patch) | |
| tree | 5d863af6ee6ca3e3993d8c898a60ff49412c8bd2 /kernel/trace/trace_uprobe.c | |
| parent | b4d4b96be89466049a0d383d019edc1403bf0ba9 (diff) | |
| download | linux-stable-455b289973f7df350ea179c7eb8bfed0c766ec40.tar.gz linux-stable-455b289973f7df350ea179c7eb8bfed0c766ec40.tar.bz2 linux-stable-455b289973f7df350ea179c7eb8bfed0c766ec40.zip | |
tracing/probe: Add trace_probe init and free functions
Add common trace_probe init and cleanup function in
trace_probe.c, and use it from trace_kprobe.c and trace_uprobe.c
Link: http://lkml.kernel.org/r/155931582664.28323.5934870189034740822.stgit@devnote2
Signed-off-by: Masami Hiramatsu <mhiramat@kernel.org>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Diffstat (limited to 'kernel/trace/trace_uprobe.c')
| -rw-r--r-- | kernel/trace/trace_uprobe.c | 27 |
1 files changed, 5 insertions, 22 deletions
diff --git a/kernel/trace/trace_uprobe.c b/kernel/trace/trace_uprobe.c index 34ce671b6080..b18b7eb1a76f 100644 --- a/kernel/trace/trace_uprobe.c +++ b/kernel/trace/trace_uprobe.c @@ -300,25 +300,17 @@ static struct trace_uprobe * alloc_trace_uprobe(const char *group, const char *event, int nargs, bool is_ret) { struct trace_uprobe *tu; - - if (!event || !group) - return ERR_PTR(-EINVAL); + int ret; tu = kzalloc(SIZEOF_TRACE_UPROBE(nargs), GFP_KERNEL); if (!tu) return ERR_PTR(-ENOMEM); - tu->tp.call.class = &tu->tp.class; - tu->tp.call.name = kstrdup(event, GFP_KERNEL); - if (!tu->tp.call.name) - goto error; - - tu->tp.class.system = kstrdup(group, GFP_KERNEL); - if (!tu->tp.class.system) + ret = trace_probe_init(&tu->tp, event, group); + if (ret < 0) goto error; dyn_event_init(&tu->devent, &trace_uprobe_ops); - INIT_LIST_HEAD(&tu->tp.files); tu->consumer.handler = uprobe_dispatcher; if (is_ret) tu->consumer.ret_handler = uretprobe_dispatcher; @@ -326,26 +318,18 @@ alloc_trace_uprobe(const char *group, const char *event, int nargs, bool is_ret) return tu; error: - kfree(tu->tp.call.name); kfree(tu); - return ERR_PTR(-ENOMEM); + return ERR_PTR(ret); } static void free_trace_uprobe(struct trace_uprobe *tu) { - int i; - if (!tu) return; - for (i = 0; i < tu->tp.nr_args; i++) - traceprobe_free_probe_arg(&tu->tp.args[i]); - path_put(&tu->path); - kfree(tu->tp.call.class->system); - kfree(tu->tp.call.name); - kfree(tu->tp.call.print_fmt); + trace_probe_cleanup(&tu->tp); kfree(tu->filename); kfree(tu); } @@ -1351,7 +1335,6 @@ static struct trace_event_functions uprobe_funcs = { static inline void init_trace_event_call(struct trace_uprobe *tu, struct trace_event_call *call) { - INIT_LIST_HEAD(&call->class->fields); call->event.funcs = &uprobe_funcs; call->class->define_fields = uprobe_event_define_fields; |