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What is a spinlock?What is a spinlock?Posted Jan 30, 2003 22:54 UTC (Thu) by corbet (editor, #1)In reply to: What is a spinlock? by perlid Parent article: Fast reader/writer locks A spinlock is a lightweight lock with no wait queues; if there is contention for the lock one (or more) threads will "spin" (busy-wait) until the lock is free. They are usually built with some sort of atomic test-and-set instruction; a quick look in the kernel source will show how they are done for any particular architecture.
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