list_ head

stay Linux The kernel , Provides a structure for creating a two-way circular list list_head. although linux The kernel uses C Written language , however list_head The introduction of , So that the kernel data structure can also have object-oriented features , By using operations list_head It's easy to reuse the code with a common interface , It's kind of like C++ The inheritance mechanism of （ Hope to have the opportunity to write an article to study C The object-oriented mechanism of language ）. The following is kernel Medium list_head Structure definition ：
struct list_head {
struct list_head *next, *prev;
};

Reference link ：
https://blog.csdn.net/u013253075/article/details/80850315

https://blog.csdn.net/wanshilun/article/details/79747710