Commit 43fe9891 authored by Namhyung Kim's avatar Namhyung Kim Committed by Steven Rostedt

tracing/uprobes: Support mix of ftrace and perf

It seems there's no reason to prevent mixed used of ftrace and perf
for a single uprobe event.  At least the kprobes already support it.

Link: http://lkml.kernel.org/r/1389946120-19610-6-git-send-email-namhyung@kernel.orgReviewed-by: default avatarMasami Hiramatsu <masami.hiramatsu.pt@hitachi.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Oleg Nesterov <oleg@redhat.com>
Cc: Srikar Dronamraju <srikar@linux.vnet.ibm.com>
Cc: zhangwei(Jovi) <jovi.zhangwei@huawei.com>
Signed-off-by: default avatarNamhyung Kim <namhyung@kernel.org>
Signed-off-by: default avatarSteven Rostedt <rostedt@goodmis.org>
parent ca3b1620
...@@ -882,9 +882,6 @@ probe_event_enable(struct trace_uprobe *tu, struct ftrace_event_file *file, ...@@ -882,9 +882,6 @@ probe_event_enable(struct trace_uprobe *tu, struct ftrace_event_file *file,
int ret; int ret;
if (file) { if (file) {
if (tu->tp.flags & TP_FLAG_PROFILE)
return -EINTR;
link = kmalloc(sizeof(*link), GFP_KERNEL); link = kmalloc(sizeof(*link), GFP_KERNEL);
if (!link) if (!link)
return -ENOMEM; return -ENOMEM;
...@@ -893,12 +890,8 @@ probe_event_enable(struct trace_uprobe *tu, struct ftrace_event_file *file, ...@@ -893,12 +890,8 @@ probe_event_enable(struct trace_uprobe *tu, struct ftrace_event_file *file,
list_add_tail_rcu(&link->list, &tu->tp.files); list_add_tail_rcu(&link->list, &tu->tp.files);
tu->tp.flags |= TP_FLAG_TRACE; tu->tp.flags |= TP_FLAG_TRACE;
} else { } else
if (tu->tp.flags & TP_FLAG_TRACE)
return -EINTR;
tu->tp.flags |= TP_FLAG_PROFILE; tu->tp.flags |= TP_FLAG_PROFILE;
}
ret = uprobe_buffer_enable(); ret = uprobe_buffer_enable();
if (ret < 0) if (ret < 0)
......
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