Function report |
Source Code:mm\page_alloc.c |
Create Date:2022-07-28 15:06:23 |
| Last Modify:2020-03-12 14:18:49 | Copyright©Brick |
| home page | Tree |
| Annotation kernel can get tool activity | Download SCCT | Chinese |
Name:alloc_pages_exact - allocate an exact number physically-contiguous pages.*@size: the number of bytes to allocate*@gfp_mask: GFP flags for the allocation, must not contain __GFP_COMP* This function is similar to alloc_pages(), except that it allocates the
Proto:void *alloc_pages_exact(size_t size, gfp_t gfp_mask)
Type:void
Parameter:
| Type | Parameter | Name |
|---|---|---|
| size_t | size | |
| gfp_t | gfp_mask |
| 4953 | order = get_order - Determine the allocation order of a memory size*@size: The size for which to get the order* Determine the allocation order of a particular sized block of memory |
| 4956 | If WARN_ON_ONCE(gfp_mask & __GFP_COMP) Then gfp_mask &= ~__GFP_COMP |
| 4959 | addr = Common helper functions. Never use with __GFP_HIGHMEM because the returned* address cannot represent highmem pages. Use alloc_pages and then kmap if* you need to access high mem. |
| 4960 | Return make_alloc_exact(addr, order, size) |
| Name | Describe |
|---|---|
| crash_save_vmcoreinfo_init | |
| alloc_large_system_hash | allocate a large system hash table from bootmem* - it is assumed that the hash table must contain an exact power-of-2* quantity of entries* - limit is the number of hash buckets, not the total allocation size |
| 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 |