函数逻辑报告

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:lib\genalloc.c Create Date:2022-07-27 07:54:16
Last Modify:2020-03-12 14:18:49 Copyright©Brick
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函数名称：gen_pool_first_fit_order_align - find the first available region* of memory matching the size requirement

函数原型：unsigned long gen_pool_first_fit_order_align(unsigned long *map, unsigned long size, unsigned long start, unsigned int nr, void *data, struct gen_pool *pool, unsigned long start_addr)

返回类型：unsigned long

参数：

类型参数名称
unsigned long *map
unsigned longsize
unsigned longstart
unsigned intnr
void *data
struct gen_pool *pool
unsigned longstart_addr
728  align_mask等于undup_pow_of_two - round the given value up to nearest power of two*@n: parameter* round the given value up to the nearest power of two* - the result is undefined when n == 0* - this can be used to initialise global variables from constant data(nr)减1
730  返回: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