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authorSteven Rostedt <srostedt@redhat.com>2012-08-09 22:26:46 -0400
committerSteven Rostedt <rostedt@goodmis.org>2014-03-07 10:06:06 -0500
commit35bb4399bd0ef16b8a57fccea0047d98b6b0e7fb (patch)
tree16b340bd7b6d1e17e9d78d7d3ea88141cf2e3905 /kernel/trace/trace_events.c
parent1d6bae966e90134bcfd7807b8f9488d55198de91 (diff)
downloadop-kernel-dev-35bb4399bd0ef16b8a57fccea0047d98b6b0e7fb.zip
op-kernel-dev-35bb4399bd0ef16b8a57fccea0047d98b6b0e7fb.tar.gz
tracing: Move event storage for array from macro to standalone function
The code that shows array fields for events is defined for all events. This can add up quite a bit when you have over 500 events. By making helper functions in the core kernel to do the work instead, we can shrink the size of the kernel down a bit. With a kernel configured with 502 events, the change in size was: text data bss dec hex filename 12990946 1913568 9785344 24689858 178bcc2 /tmp/vmlinux 12987390 1913504 9785344 24686238 178ae9e /tmp/vmlinux.patched That's a total of 3556 bytes, which comes down to 7 bytes per event. Although it's not much, this code is just called at initialization of the events. Link: http://lkml.kernel.org/r/20120810034708.084036335@goodmis.org Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
Diffstat (limited to 'kernel/trace/trace_events.c')
-rw-r--r--kernel/trace/trace_events.c6
1 files changed, 0 insertions, 6 deletions
diff --git a/kernel/trace/trace_events.c b/kernel/trace/trace_events.c
index e71ffd4..22826c7 100644
--- a/kernel/trace/trace_events.c
+++ b/kernel/trace/trace_events.c
@@ -27,12 +27,6 @@
DEFINE_MUTEX(event_mutex);
-DEFINE_MUTEX(event_storage_mutex);
-EXPORT_SYMBOL_GPL(event_storage_mutex);
-
-char event_storage[EVENT_STORAGE_SIZE];
-EXPORT_SYMBOL_GPL(event_storage);
-
LIST_HEAD(ftrace_events);
static LIST_HEAD(ftrace_common_fields);
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