X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=blobdiff_plain;ds=sidebyside;f=lib%2Fkernel_lock.c;h=f73e2f8c308f2e3b17e0cd21b5f0ab7131872f08;hb=cc1bf182bb8451a036a7c227f0a95a0416c4736e;hp=e713e86811aeb1ff1efdb5d68fabea7a63042c3c;hpb=da206c9e68cb93fcab43592d46276c02889c1250;p=linux-2.6

diff --git a/lib/kernel_lock.c b/lib/kernel_lock.c
index e713e86811..f73e2f8c30 100644
--- a/lib/kernel_lock.c
+++ b/lib/kernel_lock.c
@@ -2,7 +2,7 @@
  * lib/kernel_lock.c
  *
  * This is the traditional BKL - big kernel lock. Largely
- * relegated to obsolescense, but used by various less
+ * relegated to obsolescence, but used by various less
  * important (or lazy) subsystems.
  */
 #include <linux/smp_lock.h>
@@ -177,7 +177,12 @@ static inline void __lock_kernel(void)
 
 static inline void __unlock_kernel(void)
 {
-	spin_unlock(&kernel_flag);
+	/*
+	 * the BKL is not covered by lockdep, so we open-code the
+	 * unlocking sequence (and thus avoid the dep-chain ops):
+	 */
+	_raw_spin_unlock(&kernel_flag);
+	preempt_enable();
 }
 
 /*