Function report | 
Source Code:kernel\events\ring_buffer.c | 
Create Date:2022-07-28 13:42:41 | 
| Last Modify:2020-03-12 14:18:49 | Copyright©Brick | 
| home page | Tree | 
| Annotation kernel can get tool activity | Download SCCT | Chinese | 
Name:perf_mmap_alloc_page
Proto:static void *perf_mmap_alloc_page(int cpu)
Type:void
Parameter:
| Type | Parameter | Name | 
|---|---|---|
| int | cpu | 
| 785 | node = If cpu == -1 Then cpu Else cpu_to_node(cpu) | 
| 786 | page = Allocate pages, preferring the node given as nid. When nid == NUMA_NO_NODE,* prefer the current CPU's closest node. Otherwise node must be valid and* online. | 
| 787 | If Not page Then Return NULL | 
| 790 | Return page_address(page) | 
| Name | Describe | 
|---|---|
| rb_alloc | 
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