_spin_unlock(SYNCH)

_spin_unlock -- unlock a spin lock

Synopsis

   cc [options] -Kthread file
   
   void _spin_unlock(spin_t *lock);

_spin_unlock unlocks the spin lock pointed to by lock.

If one or more threads are waiting for the lock when _spin_unlock is called, one of the waiting threads will acquire the lock.

Spin locks acquired with _spin_lock(SYNCH) and _spin_trylock(SYNCH) should be released with _spin_unlock(SYNCH).

_spin_unlock does not return a value.

None