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1 | /* |
2 | * include/asm-generic/mutex-null.h |
3 | * |
4 | * Generic implementation of the mutex fastpath, based on NOP :-) |
5 | * |
6 | * This is used by the mutex-debugging infrastructure, but it can also |
7 | * be used by architectures that (for whatever reason) want to use the |
8 | * spinlock based slowpath. |
9 | */ |
10 | #ifndef _ASM_GENERIC_MUTEX_NULL_H |
11 | #define _ASM_GENERIC_MUTEX_NULL_H |
12 | |
13 | #define __mutex_fastpath_lock(count, fail_fn) fail_fn(count) |
14 | #define __mutex_fastpath_lock_retval(count) (-1) |
15 | #define __mutex_fastpath_unlock(count, fail_fn) fail_fn(count) |
16 | #define __mutex_fastpath_trylock(count, fail_fn) fail_fn(count) |
17 | #define __mutex_slowpath_needs_to_unlock() 1 |
18 | |
19 | #endif |
20 |
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