+2001-05-24 Ulrich Drepper <drepper@redhat.com>
+
+ * spinlock.c (__pthread_lock) [HAS_COMPARE_AND_SWAP]: Before doing any
+ serious work try once whether the lock is uncontested.
+ Remove duplicate reading of __status before loop.
+ Change suggested by Hans Boehm <hans_boehm@hp.com>.
+
+ * spinlock.h (__pthread_trylock): Remove need for oldstatus variable.
+ (__pthread_alt_trylock): Likewise.
+
2001-05-01 Kaz Kylheku <kaz@ashi.footprints.net>
Memory barrier overhaul following line by line inspection.