Un-inline the big kernel lock.

Now that spinlocks are uninlined, it is silly to keep the
BKL inlined. And this should make it a lot easier for people
to play around with variations on the locking (ie Ingo's
semaphores etc).

1 files changed, 0 insertions, 15 deletions

diff --git a/kernel/sched.c b/kernel/sched.c
index 862df56ed45466..54b7402b941031 100644
--- a/kernel/sched.c
+++ b/kernel/sched.c
@@ -4048,21 +4048,6 @@ int __init migration_init(void)
 }
 #endif
 
-/*
- * The 'big kernel lock'
- *
- * This spinlock is taken and released recursively by lock_kernel()
- * and unlock_kernel().  It is transparently dropped and reaquired
- * over schedule().  It is used to protect legacy code that hasn't
- * been migrated to a proper locking design yet.
- *
- * Don't use in new code.
- *
- * Note: spinlock debugging needs this even on !CONFIG_SMP.
- */
-spinlock_t kernel_flag __cacheline_aligned_in_smp = SPIN_LOCK_UNLOCKED;
-EXPORT_SYMBOL(kernel_flag);
-
 #ifdef CONFIG_SMP
 /*
  * Attach the domain 'sd' to 'cpu' as its base domain.  Callers must