diff options
| author | Ziqian SUN (Zamir) <zsun@redhat.com> | 2017-09-11 14:26:35 +0800 |
|---|---|---|
| committer | Steven Rostedt (VMware) <rostedt@goodmis.org> | 2017-09-19 12:36:01 -0400 |
| commit | c7b3ae0bd2ca658c7a71c49901d08c590294fac9 (patch) | |
| tree | 6e33bb7c8a1a01d7c63b513129b1097d1ba73ae6 /kernel/trace/trace.h | |
| parent | 8dd33bcb7050dd6f8c1432732f930932c9d3a33e (diff) | |
tracing: Ignore mmiotrace from kernel commandline
The mmiotrace tracer cannot be enabled with ftrace=mmiotrace in kernel
commandline. With this patch, noboot is added to the tracer struct,
and when system boot with a tracer that has noboot=true, it will print
out a warning message and continue booting.
Link: http://lkml.kernel.org/r/1505111195-31942-1-git-send-email-zsun@redhat.com
Signed-off-by: Ziqian SUN (Zamir) <zsun@redhat.com>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Diffstat (limited to 'kernel/trace/trace.h')
| -rw-r--r-- | kernel/trace/trace.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/kernel/trace/trace.h b/kernel/trace/trace.h index fb5d54d0d1b3..652c682707cd 100644 --- a/kernel/trace/trace.h +++ b/kernel/trace/trace.h @@ -444,6 +444,8 @@ struct tracer { #ifdef CONFIG_TRACER_MAX_TRACE bool use_max_tr; #endif + /* True if tracer cannot be enabled in kernel param */ + bool noboot; }; |