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Diffstat (limited to 'include/asm-x86/rwlock_64.h')
| -rw-r--r-- | include/asm-x86/rwlock_64.h | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/include/asm-x86/rwlock_64.h b/include/asm-x86/rwlock_64.h new file mode 100644 index 00000000000..72aeebed920 --- /dev/null +++ b/include/asm-x86/rwlock_64.h @@ -0,0 +1,26 @@ +/* include/asm-x86_64/rwlock.h + * + * Helpers used by both rw spinlocks and rw semaphores. + * + * Based in part on code from semaphore.h and + * spinlock.h Copyright 1996 Linus Torvalds. + * + * Copyright 1999 Red Hat, Inc. + * Copyright 2001,2002 SuSE labs + * + * Written by Benjamin LaHaise. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation; either version + * 2 of the License, or (at your option) any later version. + */ +#ifndef _ASM_X86_64_RWLOCK_H +#define _ASM_X86_64_RWLOCK_H + +#define RW_LOCK_BIAS 0x01000000 +#define RW_LOCK_BIAS_STR "0x01000000" + +/* Actual code is in asm/spinlock.h or in arch/x86_64/lib/rwlock.S */ + +#endif |