patch-2.2.4 linux/include/asm-ppc/spinlock.h

• Lines: 9
• Date: Wed Mar 10 21:30:32 1999
• Orig file: v2.2.3/linux/include/asm-ppc/spinlock.h
• Orig date: Thu Dec 31 10:29:02 1998

diff -u --recursive --new-file v2.2.3/linux/include/asm-ppc/spinlock.h linux/include/asm-ppc/spinlock.h
@@ -102,6 +102,8 @@
 #define spin_unlock_irqrestore(lock, flags) \
 	do { spin_unlock(lock); __restore_flags(flags); } while (0)
 
+extern unsigned long __spin_trylock(volatile unsigned long *lock);
+
 /*
  * Read-write spinlocks, allowing multiple readers
  * but only one writer.