How to check the owner field of struct mutex in Linux

I would like to check in a struct mutex which is locked in the kernel, who is the owner of that mutex.

struct mutex {
    atomic_long_t       owner;
    spinlock_t      wait_lock;
#ifdef CONFIG_MUTEX_SPIN_ON_OWNER
    struct optimistic_spin_queue osq; /* Spinner MCS lock */
#endif
    struct list_head    wait_list;
#ifdef CONFIG_DEBUG_MUTEXES
    void            *magic;
#endif
#ifdef CONFIG_DEBUG_LOCK_ALLOC
    struct lockdep_map  dep_map;
#endif
};

I understand from the kernel documentation that:

Field owner actually contains struct task_struct * to the current lock owner and it is therefore NULL if not currently owned.

Is there any safe way to compare that field to current?