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-rw-r--r--init/main.c20
1 files changed, 12 insertions, 8 deletions
diff --git a/init/main.c b/init/main.c
index cfb7e6821b85..f866510472d7 100644
--- a/init/main.c
+++ b/init/main.c
@@ -495,7 +495,7 @@ asmlinkage __visible void __init start_kernel(void)
debug_objects_early_init();
/*
- * Set up the the initial canary ASAP:
+ * Set up the initial canary ASAP:
*/
boot_init_stack_canary();
@@ -504,10 +504,10 @@ asmlinkage __visible void __init start_kernel(void)
local_irq_disable();
early_boot_irqs_disabled = true;
-/*
- * Interrupts are still disabled. Do necessary setups, then
- * enable them
- */
+ /*
+ * Interrupts are still disabled. Do necessary setups, then
+ * enable them.
+ */
boot_cpu_init();
page_address_init();
pr_notice("%s", linux_banner);
@@ -545,6 +545,11 @@ asmlinkage __visible void __init start_kernel(void)
trap_init();
mm_init();
+ ftrace_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 +575,7 @@ 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();
@@ -670,8 +675,6 @@ asmlinkage __visible void __init start_kernel(void)
efi_free_boot_services();
}
- ftrace_init();
-
/* Do the rest non-__init'ed, we're now alive */
rest_init();
}
@@ -959,6 +962,7 @@ static int __ref kernel_init(void *unused)
kernel_init_freeable();
/* need to finish all async __init code before freeing the memory */
async_synchronize_full();
+ ftrace_free_init_mem();
free_initmem();
mark_readonly();
system_state = SYSTEM_RUNNING;