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Fix typos in repository

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Anton Davydov
2015-04-19 22:15:28 +03:00
parent fd4520fee6
commit 984ef074ec
12 changed files with 47 additions and 47 deletions
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4
DataStructures/dlist.md
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@@ -133,7 +133,7 @@ static inline void list_add(struct list_head *new, struct list_head *head)
}
```
It just calls internal function `__list_add` with the 3 given paramters:
It just calls internal function `__list_add` with the 3 given parameters:
* new - new entry;
* head - list head after which will be inserted new item;
@@ -230,7 +230,7 @@ The next offsetof macro calculates offset from the beginning of the structure to
#define offsetof(TYPE, MEMBER) ((size_t) &((TYPE *)0)->MEMBER)
```
Let's summarize all about `container_of` macro. `container_of` macro returns address of the structure by the given address of the structure's field with `list_head` type, the name of the structure field with `list_head` type and type of the container structure. At the first line this macro declares the `__mptr` pointer which points to the field of the structure that `ptr` points to and assigns it to the `ptr`. Now `ptr` and `__mptr` points have the same address. Techincally we no need in this line, it needs for the type checking. First line ensures that that given structure (`type` paramter) has a member which called `member`. In the second line it calculates offset of the field from the structure with the `offsetof` macro and substracts it from the structure address. That's all.
Let's summarize all about `container_of` macro. `container_of` macro returns address of the structure by the given address of the structure's field with `list_head` type, the name of the structure field with `list_head` type and type of the container structure. At the first line this macro declares the `__mptr` pointer which points to the field of the structure that `ptr` points to and assigns it to the `ptr`. Now `ptr` and `__mptr` points have the same address. Techincally we no need in this line, it needs for the type checking. First line ensures that that given structure (`type` parameter) has a member which called `member`. In the second line it calculates offset of the field from the structure with the `offsetof` macro and subtracts it from the structure address. That's all.
Of course `list_add` and `list_entry` is not only functions which provides `<linux/list.h>`. Implementation of the doubly linked list provides the following API: