函数源码 |
Source File:lib\genalloc.c |
Create Date:2022-07-27 07:54:16 |
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711 712 713 714 715 716 717 718 719 720 721 722 723 724 725 726 727 728 729 730 | /** * gen_pool_first_fit_order_align - find the first available region * of memory matching the size requirement. The region will be aligned * to the order of the size specified. * @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: additional data - unused * @pool: pool to find the fit region memory from */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){ unsigned long align_mask = roundup_pow_of_two(nr) - 1; return bitmap_find_next_zero_area(map, size, start, nr, align_mask);} |