1 files changed, 0 insertions, 2 deletions
diff --git a/spinlock.c b/spinlock.c
index c77e444..7285748 100644
--- a/spinlock.c
+++ b/spinlock.c
@@ -43,7 +43,6 @@ acquire(struct spinlock * lock)
   cpuid(0, 0, 0, 0, 0);	// memory barrier
   getcallerpcs(&lock, lock->pcs);
   lock->cpu = cpu() + 10;
-  cpus[cpu()].lastacquire = lock;
 }
 
 void
@@ -53,7 +52,6 @@ release(struct spinlock * lock)
   if(!holding(lock))
     panic("release");
 
-  cpus[cpu()].lastrelease = lock;
   lock->pcs[0] = 0;
   lock->cpu = 0xffffffff;
   cpuid(0, 0, 0, 0, 0);	// memory barrier