patch-2.3.26 linux/include/asm-sh/spinlock.h

• Lines: 54
• Date: Sat Nov 6 10:40:31 1999
• Orig file: v2.3.25/linux/include/asm-sh/spinlock.h
• Orig date: Wed Oct 27 16:34:12 1999

diff -u --recursive --new-file v2.3.25/linux/include/asm-sh/spinlock.h linux/include/asm-sh/spinlock.h
@@ -1,53 +1,6 @@
 #ifndef __ASM_SH_SPINLOCK_H
 #define __ASM_SH_SPINLOCK_H
 
-#ifndef __SMP__
-
-typedef struct { } spinlock_t;
-#define SPIN_LOCK_UNLOCKED { }
-
-#define spin_lock_init(lock)	do { } while(0)
-#define spin_lock(lock)		do { } while(0)
-#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_irqsave(lock, flags)		save_and_cli(flags)
-#define spin_unlock_irqrestore(lock, flags)	restore_flags(flags)
-
-/*
- * Read-write spinlocks, allowing multiple readers
- * but only one writer.
- *
- * NOTE! it is quite common to have readers in interrupts
- * but no interrupt writers. For those circumstances we
- * can "mix" irq-safe locks - any writer needs to get a
- * irq-safe write-lock, but readers can get non-irqsafe
- * read-locks.
- */
-typedef struct { } rwlock_t;
-#define RW_LOCK_UNLOCKED (rwlock_t) { }
-
-#define read_lock(lock)		do { } while(0)
-#define read_unlock(lock)	do { } while(0)
-#define write_lock(lock)	do { } while(0)
-#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_irqsave(lock, flags)		save_and_cli(flags)
-#define read_unlock_irqrestore(lock, flags)	restore_flags(flags)
-#define write_lock_irqsave(lock, flags)		save_and_cli(flags)
-#define write_unlock_irqrestore(lock, flags)	restore_flags(flags)
-
-#else
-
 #error "No SMP on SH"
-
-#endif /* SMP */
 
 #endif /* __ASM_SH_SPINLOCK_H */