--- turnstile.h.orig	2009-07-18 15:46:33.000000000 -0400
+++ turnstile.h	2009-07-18 16:06:38.000000000 -0400
@@ -36,7 +36,7 @@
  * Turnstile interface.  Non-sleepable locks use a turnstile for the
  * queue of threads blocked on them when they are contested.  Each
  * turnstile contains two sub-queues: one for threads waiting for a
- * shared, or eread, lock, and one for threads waiting for an
+ * shared, or read, lock, and one for threads waiting for an
  * exclusive, or write, lock.
  *
  * A thread calls turnstile_lock() to lock the turnstile chain associated
@@ -45,7 +45,7 @@
  * a lock operation instead of blocking, it should call turnstile_release()
  * to unlock the associated turnstile chain lock.
  *
- * When a lock is released, the thread calls turnstile_lookup() to loop
+ * When a lock is released, the thread calls turnstile_lookup() to look
  * up the turnstile associated with the given lock in the hash table.  Then
  * it calls either turnstile_signal() or turnstile_broadcast() to mark
  * blocked threads for a pending wakeup.  turnstile_signal() marks the