From 097d036a2f25eecc42435c57e010aaf4a2eed2d9 Mon Sep 17 00:00:00 2001 From: Frederic Weisbecker Date: Fri, 3 Oct 2008 15:39:21 +0200 Subject: tracing/fastboot: only trace non-module initcalls At this time, only built-in initcalls interest us. We can't really produce a relevant graph if we include the modules initcall too. I had good results after this patch (see svg in attachment). Signed-off-by: Frederic Weisbecker Signed-off-by: Ingo Molnar --- kernel/trace/trace_boot.c | 11 ++++++++--- 1 file changed, 8 insertions(+), 3 deletions(-) (limited to 'kernel/trace') diff --git a/kernel/trace/trace_boot.c b/kernel/trace/trace_boot.c index b9dc2c0093ab..a7efe3559654 100644 --- a/kernel/trace/trace_boot.c +++ b/kernel/trace/trace_boot.c @@ -22,11 +22,16 @@ void start_boot_trace(void) trace_boot_enabled = 1; } -void stop_boot_trace(struct trace_array *tr) +void stop_boot_trace(void) { trace_boot_enabled = 0; } +void reset_boot_trace(struct trace_array *tr) +{ + stop_boot_trace(); +} + static void boot_trace_init(struct trace_array *tr) { int cpu; @@ -43,7 +48,7 @@ static void boot_trace_ctrl_update(struct trace_array *tr) if (tr->ctrl) start_boot_trace(); else - stop_boot_trace(tr); + stop_boot_trace(); } static enum print_line_t initcall_print_line(struct trace_iterator *iter) @@ -81,7 +86,7 @@ struct tracer boot_tracer __read_mostly = { .name = "initcall", .init = boot_trace_init, - .reset = stop_boot_trace, + .reset = reset_boot_trace, .ctrl_update = boot_trace_ctrl_update, .print_line = initcall_print_line, }; -- cgit v1.2.2