read_once
最近看Kernel code，看到這個ACCESS_ONCE巨集，仔細看了它的定義發現挺有趣的，順便記錄一下。 ACCESS_ONCE顧名思義，就是確實地讀取所指定記憶體位 ... , A READ_ONCE() , WRITE_ONCE() , and ACCESS_ONCE() accesses may be modeled as a volatile memory_order_relaxed access. However ..., Why kernel code should use READ_ONCE and WRITE_ONCE for shared memory accesses. There are several reasons to use at least ...,Elixir Cross Referencer. ,Elixir Cross Referencer. , READ_ONCE() 用于从内存中读取变量的值。变量x 的类型可以是任意类型，函数直接调用__READ_ONCE() 进行内存读取。, 不知你是否曾经想过READ_ONCE()的使用场景。如果是你编写代码，你该决定何时使用READ_ONCE()呢？曾经这个问题就像是volatile关键字一样 ..., Can somebody explain the usage of WRITE_ONCE and READ_ONCE ? And internally WRITE_ONCE uses a volatile qualifier. Why?,ACCESS_ONCE()/WRITE_ONCE()/READ_ONCE(). 几乎每次阅读linux 源码都会遇到ACCESS_ONCE，它是用来干什么的， 以及它如何做到的呢？ , READ_ONCE#define READ_ONCE(x) __READ_ONCE(x, 1)#define __READ_ONCE(x, check) --( -- union typeof(x) __val; char __c[1]; } __u; ...
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Adrian's Blog
最近看Kernel code，看到這個ACCESS_ONCE巨集，仔細看了它的定義發現挺有趣的，順便記錄一下。 ACCESS_ONCE顧名思義，就是確實地讀取所指定記憶體位 ... http://adrianhuang.blogspot.co Linux-Kernel Memory Model - open-std
A READ_ONCE() , WRITE_ONCE() , and ACCESS_ONCE() accesses may be modeled as a volatile memory_order_relaxed access. However ... http://www.open-std.org READ_ONCE and WRITE_ONCE · googlektsan Wiki · GitHub
Why kernel code should use READ_ONCE and WRITE_ONCE for shared memory accesses. There are several reasons to use at least ... https://github.com READ_ONCE identifier - Linux source code (v4.9) - Bootlin
Elixir Cross Referencer. https://elixir.bootlin.com READ_ONCE identifier - Linux source code (v5.6.12) - Bootlin
Elixir Cross Referencer. https://elixir.bootlin.com READ_ONCE 源码分析 - BiscuitOS
READ_ONCE() 用于从内存中读取变量的值。变量x 的类型可以是任意类型，函数直接调用__READ_ONCE() 进行内存读取。 https://biscuitos.github.io READ_ONCE() - 知乎
不知你是否曾经想过READ_ONCE()的使用场景。如果是你编写代码，你该决定何时使用READ_ONCE()呢？曾经这个问题就像是volatile关键字一样 ... https://zhuanlan.zhihu.com WRITE_ONCE and READ_ONCE in linux kernel - Stack ...
Can somebody explain the usage of WRITE_ONCE and READ_ONCE ? And internally WRITE_ONCE uses a volatile qualifier. Why? https://stackoverflow.com WRITE_ONCE()READ_ONCE()
ACCESS_ONCE()/WRITE_ONCE()/READ_ONCE(). 几乎每次阅读linux 源码都会遇到ACCESS_ONCE，它是用来干什么的， 以及它如何做到的呢？ https://quant67.com [源码分析][Linux]READ_ONCE与WRITE_ONCE_运维_火云的 ...
READ_ONCE#define READ_ONCE(x) __READ_ONCE(x, 1)#define __READ_ONCE(x, check) --( -- union typeof(x) __val; char __c[1]; } __u; ... https://blog.csdn.net |