Hi,
I'm working on porting the Linux Cisco VPN client kernel module to
FreeBSD. The API interface between the OS and their actual driver has four
spinlock functions that operate around a handle (void *) to a ``critical
section'':
CNI_free_spin_lock
CNI_new_spin_lock
CNI_spin_lock
CNI_spin_unlock
Funnily enough, these wrap the Linux spinlock_t/spin_lock*()
functionality quite nicely. Does the FreeBSD kernel offer such a trivial
spinlock facility? If not, could anyone suggest what type of locking
mechanism would best be used?
Regards,
Trent.
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