Function report |
Source Code:mm\page_alloc.c |
Create Date:2022-07-28 15:04:55 |
| Last Modify:2020-03-12 14:18:49 | Copyright©Brick |
| home page | Tree |
| Annotation kernel can get tool activity | Download SCCT | Chinese |
Name:split_page takes a non-compound higher-order page, and splits it into* n (1<<order) sub-pages: page[0..n]* Each sub-page must be freed individually.* Note: this is probably too low level an operation for use in drivers.
Proto:void split_page(struct page *page, unsigned int order)
Type:void
Parameter:
| Type | Parameter | Name |
|---|---|---|
| struct page * | page | |
| unsigned int | order |
| 3118 | VM_BUG_ON_PAGE(PageCompound(page), page) |
| 3119 | VM_BUG_ON_PAGE(!page_count(page), page) |
| 3121 | When i < 1 << order cycle Turn a non-refcounted page (->_refcount == 0) into refcounted with* a count of one. |
| 3123 | split_page_owner(page, order) |
| Name | Describe |
|---|---|
| make_alloc_exact | |
| split_map_pages |
| Source code conversion tool public plug-in interface | X |
|---|---|
| Support c/c++/esqlc/java Oracle/Informix/Mysql Plug-in can realize: logical Report Code generation and batch code conversion |