1/* include/asm-x86_64/rwlock.h 2 * 3 * Helpers used by both rw spinlocks and rw semaphores. 4 * 5 * Based in part on code from semaphore.h and 6 * spinlock.h Copyright 1996 Linus Torvalds. 7 * 8 * Copyright 1999 Red Hat, Inc. 9 * Copyright 2001,2002 SuSE labs 10 * 11 * Written by Benjamin LaHaise. 12 * 13 * This program is free software; you can redistribute it and/or 14 * modify it under the terms of the GNU General Public License 15 * as published by the Free Software Foundation; either version 16 * 2 of the License, or (at your option) any later version. 17 */ 18#ifndef _ASM_X86_64_RWLOCK_H 19#define _ASM_X86_64_RWLOCK_H 20 21#define RW_LOCK_BIAS 0x01000000 22#define RW_LOCK_BIAS_STR "0x01000000" 23 24/* Actual code is in asm/spinlock.h or in arch/x86_64/lib/rwlock.S */ 25 26#endif 27