spin_lock spin_lock_irqsave 文章資訊整理

免費軟體資源 spinlock linux 主題文章

spin_lock spin_lock_irqsave

A spin lock is a way to protect a shared resource from being modified by two or more processes simultaneously. ... than the cost of the few cycles that the spinlock is expected to last. Example of a spinlock: #!/bin/sh #wait for some program to clear a lo

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spin_lock 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...

linux kernel - spin_lock_irqsave vs spin_lock_irq - Stack ...

https://stackoverflow.com
若是保護共用的資料 [ 以下簡稱 CS]，若進入 spin_lock_irqsave()，CPU 都已經被 disable irq 並且已經 preempt_disable() 了...

關於使用 spin_lock_irqsave() 的情形 - - 樂多日誌

http://blog.roodo.com
EFLAG的狀態，就要用spin_lock_irqsave/spin_unlock_irqrestore，如果要和bh及其他CPU互斥，就要用spin_lock_bh/spin_...

Issaac's Blog: 何時使用哪個spin_lock?

http://issaacliu.blogspot.com
在Linux内核中何时使用spin_lock，何时使用spin_lock_irqsave很容易混淆。首先看一下代码是如何实现的。spin_lock的调用关系 spin_lock |...

Linux内核spin_lock、spin_lock_irq 和 spin_lock_irqsave 分析 ...

http://blog.csdn.net
In software engineering, a spinlock is a lock which causes a thread trying to acquire it t...

Spinlock - Wikipedia

https://en.wikipedia.org
A spin lock is a way to protect a shared resource from being modified by two or more proce...

What is a spinlock in Linux? - Unix & Linux Stack ...

https://unix.stackexchange.com
个人理解，不一定正确： spin_lock和spin_lock_irqsave的区别是是否关闭中断：spin_lock是直接获取锁，没拿到锁直接开始忙等；spin_lock_irq...

spin_lock_irqsave和spin_lock - 内核源码-ChinaUnix.net ...

http://bbs.chinaunix.net
*lock); void spin_lock_irqsave(spinlock_t *lock, unsigned long flags); void spin_lock_irq(...

5.5. Spinlocks - Make Linux

http://www.makelinux.net
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...

spin_lock、spin_lock_irq、spin_lock_irqsave区别【转】 - 张昺 ...

http://www.cnblogs.com
In general, while holding a spin lock, one should avoid blocking, calling anything that it...

spinlock - What exactly are "spin-locks"? - Stack ...

https://stackoverflow.com

spin_lock spin_lock_irqsave

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spin_lock spin_lock_irqsave 相關資訊