Author: HuaQing vision embedded institute. The Linux device driver development "(08 and 09 sep TOP50) annual list of best-selling chapter 7, Linux device driver of the concurrent control. Linux device driver must be solved in question is DuoGe process on the concurrent access to Shared resources, concurrent access will lead to a race condition. Linux provides DuoZhong solve a race condition the question way, the way of the scene suitable for different applications. Section 7.1 describes the concurrent and the concept of a race condition happened and occasion. 7.2 ~ 7.5 respectively explained interrupt shielding, atomic operation, spin lock and the signal of the concurrent control mechanism. Section 7.6 explain the concurrent control of globalmem increase after the device driver.

第7章、Linux设备驱动中的并发控制.pdf

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