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memory/buddy/alloc_page: update image

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gatieme
2021-04-04 23:24:12 +08:00
parent 4c06f694f7
commit 923e0577ff
1 changed files with 3 additions and 24 deletions
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study/kernel/02-memory/04-buddy/04-alloc_page/README.md
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@@ -176,20 +176,6 @@ alloc_pages(gfp_t gfp_mask, unsigned int order)
![alloc_pages for UMA](alloc_pages_uma.png)
```cpp
|---->alloc_pages
|
|---->alloc_pages_node
|
|---->__alloc_pages_node
|
|---->__alloc_pages
|
|---->__alloc_pages_nodemask
|
```
UMA结构下的`alloc_pages`是通过`alloc_pages_node`函数实现的, 下面我们看看`alloc_pages_node`函数的定义, 在[include/linux/gfp.h?v=4.7, line 448](http://lxr.free-electrons.com/source/include/linux/gfp.h?v=4.7#L448)
@@ -254,16 +240,6 @@ __alloc_pages(gfp_t gfp_mask, unsigned int order, int preferred_nid)
![alloc_pages for NUMA](alloc_pages_numa.png)
```cpp
|---->alloc_pages
|
|---->alloc_pages_current
|
|---->alloc_page_interleave
|
|---->__alloc_pages_nodemask
|
```
## 2.4 `__get_free_pages`
-------
@@ -936,6 +912,9 @@ for (o = order; o < MAX_ORDER; o++) {
### 3.4.2 rmqueue_pcplist
-------
[`rmqueue_pcplist`](https://elixir.bootlin.com/linux/v5.10/source/mm/page_alloc.c#L3396) 从 Per CPU Pages 中分配物理页.
### 3.4.3 ` __rmqueue`
-------