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linux spin_lock_irqsave

linux spin_lock_irqsave

The required include file for the spinlock primitives is <linux/spinlock.h>. An actual lock has the type spinlock_t. Like any other data structure, a spinlock must be initialized. ...

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linux spin_lock_irqsave 相關資訊

  • On an SMP machine we must use spin_lock_irqsave and not spin_lock_irq from interrupt conte...
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  • The required include file for the spinlock primitives is <linux/spinlock.h>. An actu...
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  • 从spin_lock到spin_lock_irqsaveSpinlock的目的是用来同步SMP中会被多个CPU同时存取的变量。在Linux中，普通的spinlock由于不带额外的语...
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  • the name spin lock. The Linux kernel uses spin locks for many things, such as when sending...
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  • 在Linux內核中何時使用spin_lock，何時使用spin_lock_irqsave很容易混淆。首先看一下代碼是如何實現的。spin_lock的調用關係 spin_lock |...
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  • We’ll go over how things are implemented in both the SMP (Symmetric Multi-Processor) and U...
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  • 嗯，是怕如果進 CS 之前，local CPU status 已經是 disable irq 的狀態，就用 spin_lock_irqsave()來保存，這想法沒錯，但是這種情形會...
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  • Linux kernel中最基本的lock原語就是spin lock（自旋鎖）。實例代碼如下： static DEFINE_SPINLOCK(xxx_lock); unsigned...
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  • Robert explains the various locking primitives in the Linux kernel, why you need them and ...
    Kernel Locking Techniques | Linux Journal
    http://www.linuxjournal.com
  • 可以看出来他们两者只有一个差别：是否调用local_irq_disable()函数， 即是否禁止本地中断。 在任何情况下使用spin_lock_irq都是安全的。因为它既禁止本地中...
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