kernel_poison_pages 2650 include/linux/mm.h extern void kernel_poison_pages(struct page *page, int numpages, int enable); kernel_poison_pages 1174 mm/page_alloc.c kernel_poison_pages(page, 1 << order, 0); kernel_poison_pages 2151 mm/page_alloc.c kernel_poison_pages(page, 1 << order, 1);