内存管理之bootmem管理之free_all_bootmem

/**
 * free_all_bootmem - release free pages to the buddy allocator
 *
 * Returns the number of pages actually released.
 */
unsigned long __init free_all_bootmem(void)
{
unsigned long total_pages = 0;
bootmem_data_t *bdata;

reset_all_zones_managed_pages();

list_for_each_entry(bdata, &bdata_list, list)
total_pages += free_all_bootmem_core(bdata);

totalram_pages += total_pages;

return total_pages;
}

由mm_init--> mem_init调用