函数逻辑报告

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:include\linux\bitmap.h Create Date:2022-07-27 06:38:42
Last Modify:2020-03-12 14:18:49 Copyright©Brick
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函数名称:map_find_next_zero_area - find a contiguous aligned zero area*@map: The address to base the search on*@size: The bitmap size in bits*@start: The bitnumber to start searching at*@nr: The number of zeroed bits we're looking for*@align_mask: Alignment mask

函数原型:static inline unsigned long bitmap_find_next_zero_area(unsigned long *map, unsigned long size, unsigned long start, unsigned int nr, unsigned long align_mask)

返回类型:unsigned long

参数:

类型参数名称
unsigned long *map
unsigned longsize
unsigned longstart
unsigned intnr
unsigned longalign_mask
181  返回:bitmap_find_next_zero_area_off(map, size, start, nr, align_mask, 0)
调用者
名称描述
gen_pool_first_fitgen_pool_first_fit - find the first available region* of memory matching the size requirement (no alignment constraint)*@map: The address to base the search on*@size: The bitmap size in bits*@start: The bitnumber to start searching at*@nr: The number of
gen_pool_fixed_allocgen_pool_fixed_alloc - reserve a specific region*@map: The address to base the search on*@size: The bitmap size in bits*@start: The bitnumber to start searching at*@nr: The number of zeroed bits we're looking for*@data: data for alignment*@pool: pool to
gen_pool_first_fit_order_aligngen_pool_first_fit_order_align - find the first available region* of memory matching the size requirement
gen_pool_best_fitgen_pool_best_fit - find the best fitting region of memory* macthing the size requirement (no alignment constraint)*@map: The address to base the search on*@size: The bitmap size in bits*@start: The bitnumber to start searching at*@nr: The number of
iommu_area_alloc
__irq_alloc_descs__irq_alloc_descs - allocate and initialize a range of irq descriptors*@irq: Allocate for specific irq number if irq >= 0*@from: Start the search from this irq number*@cnt: Number of consecutive irqs to allocate
matrix_alloc_area