From e725c731e3bb1e892e7b564c945b121cb41d1087 Mon Sep 17 00:00:00 2001 From: "Steven Rostedt (VMware)" Date: Fri, 3 Mar 2017 13:37:33 -0500 Subject: tracing: Split tracing initialization into two for early initialization Create an early_trace_init() function that will initialize the buffers and allow for ealier use of trace_printk(). This will also allow for future work to have function tracing start earlier at boot up. Signed-off-by: Steven Rostedt (VMware) --- init/main.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) (limited to 'init') diff --git a/init/main.c b/init/main.c index f9c9d9948203..81a49e8d54cc 100644 --- a/init/main.c +++ b/init/main.c @@ -545,6 +545,9 @@ asmlinkage __visible void __init start_kernel(void) trap_init(); mm_init(); + /* trace_printk can be enabled here */ + early_trace_init(); + /* * Set up the scheduler prior starting any interrupts (such as the * timer interrupt). Full topology setup happens at smp_init() @@ -570,7 +573,7 @@ asmlinkage __visible void __init start_kernel(void) rcu_init(); - /* trace_printk() and trace points may be used after this */ + /* Trace events are available after this */ trace_init(); context_tracking_init(); -- cgit v1.2.3