lin
2025-08-21 57113df3a0e2be01232281fad9a5f2c060567981
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/*
 * include/asm-generic/mutex-null.h
 *
 * Generic implementation of the mutex fastpath, based on NOP :-)
 *
 * This is used by the mutex-debugging infrastructure, but it can also
 * be used by architectures that (for whatever reason) want to use the
 * spinlock based slowpath.
 */
#ifndef _ASM_GENERIC_MUTEX_NULL_H
#define _ASM_GENERIC_MUTEX_NULL_H
 
#define __mutex_fastpath_lock(count, fail_fn)        fail_fn(count)
#define __mutex_fastpath_lock_retval(count)        (-1)
#define __mutex_fastpath_unlock(count, fail_fn)        fail_fn(count)
#define __mutex_fastpath_trylock(count, fail_fn)    fail_fn(count)
#define __mutex_slowpath_needs_to_unlock()        1
 
#endif