From: Oleg Nesterov <oleg@redhat.com>
To: Steven Rostedt <rostedt@goodmis.org>
Cc: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>,
Namhyung Kim <namhyung@kernel.org>,
Srikar Dronamraju <srikar@linux.vnet.ibm.com>,
Tom Zanussi <tom.zanussi@linux.intel.com>,
"zhangwei(Jovi)" <jovi.zhangwei@huawei.com>,
linux-kernel@vger.kernel.org
Subject: [PATCH v2 4/7] tracing/uprobes: kill the dead TRACE_EVENT_FL_USE_CALL_FILTER logic
Date: Tue, 15 Jul 2014 20:48:24 +0200 [thread overview]
Message-ID: <20140715184824.GA20505@redhat.com> (raw)
In-Reply-To: <20140715184753.GA20470@redhat.com>
alloc_trace_uprobe() sets TRACE_EVENT_FL_USE_CALL_FILTER for unknown
reason and this is simply wrong. Fortunately this has no effect because
register_uprobe_event() clears call->flags after that.
Kill both. This trace_uprobe was kzalloc'ed and we rely on this fact
anyway.
Signed-off-by: Oleg Nesterov <oleg@redhat.com>
Acked-by: Srikar Dronamraju <srikar@linux.vnet.ibm.com>
---
kernel/trace/trace_uprobe.c | 3 +--
1 files changed, 1 insertions(+), 2 deletions(-)
diff --git a/kernel/trace/trace_uprobe.c b/kernel/trace/trace_uprobe.c
index 3c9b97e..33ff6a2 100644
--- a/kernel/trace/trace_uprobe.c
+++ b/kernel/trace/trace_uprobe.c
@@ -265,7 +265,6 @@ alloc_trace_uprobe(const char *group, const char *event, int nargs, bool is_ret)
if (is_ret)
tu->consumer.ret_handler = uretprobe_dispatcher;
init_trace_uprobe_filter(&tu->filter);
- tu->tp.call.flags |= TRACE_EVENT_FL_USE_CALL_FILTER;
return tu;
error:
@@ -1292,7 +1291,7 @@ static int register_uprobe_event(struct trace_uprobe *tu)
kfree(call->print_fmt);
return -ENODEV;
}
- call->flags = 0;
+
call->class->reg = trace_uprobe_register;
call->data = tu;
ret = trace_add_event_call(call);
--
1.5.5.1
next prev parent reply other threads:[~2014-07-15 18:51 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-07-15 18:47 [PATCH v2 0/7] tracing: ->filter cleanups Oleg Nesterov
2014-07-15 18:48 ` [PATCH v2 1/7] tracing: kill destroy_preds() and destroy_file_preds() Oleg Nesterov
2014-07-15 18:48 ` [PATCH v2 2/7] tracing: kill destroy_call_preds() Oleg Nesterov
2014-07-15 18:48 ` [PATCH v2 3/7] tracing: kill call_filter_disable() Oleg Nesterov
2014-07-15 18:48 ` Oleg Nesterov [this message]
2014-07-15 18:48 ` [PATCH v2 5/7] tracing: kill ftrace_event_call->files Oleg Nesterov
2014-07-15 18:48 ` [PATCH v2 6/7] tracing: change apply_subsystem_event_filter() paths to check file->system == dir Oleg Nesterov
2014-07-16 18:32 ` Steven Rostedt
2014-07-16 19:12 ` Oleg Nesterov
2014-07-16 19:59 ` Steven Rostedt
2014-07-15 18:48 ` [PATCH v2 7/7] tracing: kill "filter_string" arg of replace_preds() Oleg Nesterov
2014-07-17 8:05 ` [PATCH v2 0/7] tracing: ->filter cleanups Namhyung Kim
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