init: Remove the BKL from startup code

I have shown by code review that no driver takes
the BKL at init time any more, so whatever the
init code was locking against is no longer there
and it is now safe to remove the BKL there.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Steven Rostedt <rostedt@goodmis>
Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>

1 files changed, 0 insertions, 5 deletions

diff --git a/init/main.c b/init/main.c
index a42fdf4aeba9..9b34c1b8d76c 100644
--- a/init/main.c
+++ b/init/main.c
@@ -444,7 +444,6 @@ static noinline void __init_refok rest_init(void)
         kthreadd_task = find_task_by_pid_ns(pid, &init_pid_ns);
         rcu_read_unlock();
         complete(&kthreadd_done);
-        unlock_kernel();
 
         /*
          * The boot idle thread must execute schedule()
@@ -565,7 +564,6 @@ asmlinkage void __init start_kernel(void)
  * Interrupts are still disabled. Do necessary setups, then
  * enable them
  */
-        lock_kernel();
         tick_init();
         boot_cpu_init();
         page_address_init();
@@ -829,7 +827,6 @@ static noinline int init_post(void)
         /* need to finish all async __init code before freeing the memory */
         async_synchronize_full();
         free_initmem();
-        unlock_kernel();
         mark_rodata_ro();
         system_state = SYSTEM_RUNNING;
         numa_default_policy();
@@ -869,8 +866,6 @@ static int __init kernel_init(void * unused)
          * Wait until kthreadd is all set-up.
          */
         wait_for_completion(&kthreadd_done);
-        lock_kernel();
-
         /*
          * init can allocate pages on any node
          */