函数逻辑报告

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:mm\percpu-vm.c Create Date:2022-07-27 15:51:34
Last Modify:2020-03-12 14:18:49 Copyright©Brick
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函数名称：pcpu_destroy_chunk

函数原型：static void pcpu_destroy_chunk(struct pcpu_chunk *chunk)

返回类型：void

参数：

类型参数名称
struct pcpu_chunk *chunk
358  如果非chunk则返回
361  pcpu_stats_chunk_dealloc()
362  trace_percpu_destroy_chunk( base address of this chunk )
364  如果 chunk data 则pcpu_free_vm_areas( chunk data , group information, used for vm allocation )
366  pcpu_free_chunk(chunk)
调用者
名称描述
pcpu_balance_workfnBalance work is used to populate or destroy chunks asynchronously. We* try to keep the number of populated free pages between* PCPU_EMPTY_POP_PAGES_LOW and HIGH for atomic allocations and at most one* empty chunk.