tracing: move tgid out of generic entry and into userstack

The userstack trace required the recording of the tgid entry.
Unfortunately, it was added to the generic entry where it wasted
4 bytes of every entry and was only used by one entry.

This patch moves it out of the generic field and moves it into the
only user (userstack_entry).

Signed-off-by: Steven Rostedt <rostedt@goodmis.org>

1 files changed, 1 insertions, 4 deletions

diff --git a/kernel/trace/trace_events.c b/kernel/trace/trace_events.c
index 78b1ed230177..28d92027a93c 100644
--- a/kernel/trace/trace_events.c
+++ b/kernel/trace/trace_events.c
@@ -86,7 +86,6 @@ int trace_define_common_fields(struct ftrace_event_call *call)
         __common_field(unsigned char, flags);
         __common_field(unsigned char, preempt_count);
         __common_field(int, pid);
-        __common_field(int, tgid);
 
         return ret;
 }
@@ -572,13 +571,11 @@ static int trace_write_header(struct trace_seq *s)
                                 "\tfield:%s %s;\toffset:%zu;\tsize:%zu;\n"
                                 "\tfield:%s %s;\toffset:%zu;\tsize:%zu;\n"
                                 "\tfield:%s %s;\toffset:%zu;\tsize:%zu;\n"
-                                "\tfield:%s %s;\toffset:%zu;\tsize:%zu;\n"
                                 "\n",
                                 FIELD(unsigned short, type),
                                 FIELD(unsigned char, flags),
                                 FIELD(unsigned char, preempt_count),
-                                FIELD(int, pid),
-                                FIELD(int, tgid));
+                                FIELD(int, pid));
 }
 
 static ssize_t