patch-2.3.13 linux/include/asm-m68k/spinlock.h

• Lines: 38
• Date: Mon Aug 9 12:27:31 1999
• Orig file: v2.3.12/linux/include/asm-m68k/spinlock.h
• Orig date: Thu Dec 17 09:06:25 1998

diff -u --recursive --new-file v2.3.12/linux/include/asm-m68k/spinlock.h linux/include/asm-m68k/spinlock.h
@@ -17,12 +17,14 @@
 #endif
 
 #define spin_lock_init(lock)	do { } while(0)
-#define spin_lock(lock)		do { } while(0)
-#define spin_trylock(lock)	do { } while(0)
+#define spin_lock(lock)		(void)(lock) /* Not "unused variable". */
+#define spin_trylock(lock)	(1)
 #define spin_unlock_wait(lock)	do { } while(0)
 #define spin_unlock(lock)	do { } while(0)
 #define spin_lock_irq(lock)	cli()
 #define spin_unlock_irq(lock)	sti()
+#define spin_lock_bh(lock)	local_bh_disable()
+#define spin_unlock_bh(lock)	local_bh_enable()
 
 #define spin_lock_irqsave(lock, flags) \
 	do { save_flags(flags); cli(); } while (0)
@@ -49,14 +51,18 @@
 #define RW_LOCK_UNLOCKED (rwlock_t) { 0 }
 #endif
 
-#define read_lock(lock)		do { } while(0)
+#define read_lock(lock)		(void)(lock) /* Not "unused variable". */
 #define read_unlock(lock)	do { } while(0)
-#define write_lock(lock)	do { } while(0)
+#define write_lock(lock)	(void)(lock) /* Not "unused variable". */
 #define write_unlock(lock)	do { } while(0)
 #define read_lock_irq(lock)	cli()
 #define read_unlock_irq(lock)	sti()
 #define write_lock_irq(lock)	cli()
 #define write_unlock_irq(lock)	sti()
+#define read_lock_bh(lock)	local_bh_disable()
+#define read_unlock_bh(lock)	local_bh_enable()
+#define write_lock_bh(lock)	local_bh_disable()
+#define write_unlock_bh(lock)	local_bh_enable()
 
 #define read_lock_irqsave(lock, flags)		save_and_cli(flags)
 #define read_unlock_irqrestore(lock, flags)	restore_flags(flags)