Ejemplos de mark_page_reserved en C++ (Cpp)

Ejemplo n.º 1

Archivo: init.c Proyecto: JeremyGrosser/linux

static void __init setup_zero_pages(void)
{
	unsigned int order;
	struct page *page;
	int i;

	/* Latest machines require a mapping granularity of 512KB */
	order = 7;

	/* Limit number of empty zero pages for small memory sizes */
	while (order > 2 && (totalram_pages >> 10) < (1UL << order))
		order--;

	empty_zero_page = __get_free_pages(GFP_KERNEL | __GFP_ZERO, order);
	if (!empty_zero_page)
		panic("Out of memory in setup_zero_pages");

	page = virt_to_page((void *) empty_zero_page);
	split_page(page, order);
	for (i = 1 << order; i > 0; i--) {
		mark_page_reserved(page);
		page++;
	}

	zero_page_mask = ((PAGE_SIZE << order) - 1) & PAGE_MASK;
}

Ejemplo n.º 2

Archivo: init.c Proyecto: GalaxyTab4/android_kernel_samsung_matissevewifi

static void setup_zero_page(void)
{
    struct page *page;

    empty_zero_page = __get_free_pages(GFP_KERNEL | __GFP_ZERO, 0);
    if (!empty_zero_page)
        panic("Oh boy, that early out of memory?");

    page = virt_to_page((void *) empty_zero_page);
    mark_page_reserved(page);
}

Ejemplo n.º 3

static void __init setup_zero_pages(void)
{
	struct cpuid cpu_id;
	unsigned int order;
	struct page *page;
	int i;

	get_cpu_id(&cpu_id);
	switch (cpu_id.machine) {
	case 0x9672:	/* g5 */
	case 0x2064:	/* z900 */
	case 0x2066:	/* z900 */
	case 0x2084:	/* z990 */
	case 0x2086:	/* z990 */
	case 0x2094:	/* z9-109 */
	case 0x2096:	/* z9-109 */
		order = 0;
		break;
	case 0x2097:	/* z10 */
	case 0x2098:	/* z10 */
	case 0x2817:	/* z196 */
	case 0x2818:	/* z196 */
		order = 2;
		break;
	case 0x2827:	/* zEC12 */
	case 0x2828:	/* zEC12 */
		order = 5;
		break;
	case 0x2964:	/* z13 */
	default:
		order = 7;
		break;
	}
	/* Limit number of empty zero pages for small memory sizes */
	while (order > 2 && (totalram_pages >> 10) < (1UL << order))
		order--;

	empty_zero_page = __get_free_pages(GFP_KERNEL | __GFP_ZERO, order);
	if (!empty_zero_page)
		panic("Out of memory in setup_zero_pages");

	page = virt_to_page((void *) empty_zero_page);
	split_page(page, order);
	for (i = 1 << order; i > 0; i--) {
		mark_page_reserved(page);
		page++;
	}

	zero_page_mask = ((PAGE_SIZE << order) - 1) & PAGE_MASK;
}