int mutex_type_adaptive(kmutex_t *mutex)
mutex_type_adaptive returns non-zero if the specified kernel mutex is of type MUTEX_ADAPTIVE, or zero if it is not. Mutexes are adaptive if they meet one or more of the following conditions:
The mutex is declared statically
The mutex is created with an interrupt block cookie of NULL
The mutex is created with an interrupt block cookie that does not correspond to a high-level interrupt
See mutex_init(9F) for more details on mutexes. The majority of mutexes in the Oracle Solaris kernel are adaptive.