Definitions for "Spin lock"
(n.) an implementation of the lock primitive that causes a processor to retest a semaphore until it changes value. Busy-waits will spin until the lock is free.
a lock which, when you try to acquire it, will wait until it's available before returning control -- as opposed to a defer lock, which will say "Sorry, held by someone else"
A method of synchronizing processes on a multiprocessor system. A process waiting for a resource which is currently in use (locked) by a process running on a different CPU repeatedly executes a short section of kernel code (spins) until the lock is released.
Keywords:  variable, type
a variable of this type