函数逻辑报告

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:mm\percpu.c Create Date:2022-07-27 15:50:02
Last Modify:2022-05-23 13:52:24 Copyright©Brick
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函数名称：pcpu_chunk_slot

函数原型：static int pcpu_chunk_slot(const struct pcpu_chunk *chunk)

返回类型：int

参数：

类型参数名称
const struct pcpu_chunk *chunk
235  chunk_md等于chunk_md
237  如果 free bytes in the chunk 小于PCPU_MIN_ALLOC_SIZE或contig hint for block 恒等于0则返回:0
241  返回:pcpu_size_to_slot(contig hint for block * PCPU_MIN_ALLOC_SIZE)
调用者
名称描述
pcpu_chunk_relocatepcpu_chunk_relocate - put chunk in the appropriate chunk slot*@chunk: chunk of interest*@oslot: the previous slot it was on* This function is called after an allocation or free changed @chunk
pcpu_alloc_areapcpu_alloc_area - allocates an area from a pcpu_chunk*@chunk: chunk of interest*@alloc_bits: size of request in allocation units*@align: alignment of area (max PAGE_SIZE)*@start: bit_off to start searching* This function takes in a @start offset to begin
pcpu_free_areapcpu_free_area - frees the corresponding offset*@chunk: chunk of interest*@off: addr offset into chunk* This function determines the size of an allocation to free using* the boundary bitmap and clears the allocation map.