C++ (Cpp) gup_pmd_range Beispiele

Beispiel #1

Datei: gup.c Projekt: myhro/debian-linux-kernel-gzip

static int gup_pud_range(pgd_t pgd, unsigned long addr, unsigned long end,
		int write, struct page **pages, int *nr)
{
	unsigned long next;
	pud_t *pudp;

	pudp = pud_offset(&pgd, addr);
	do {
		pud_t pud = READ_ONCE(*pudp);

		next = pud_addr_end(addr, end);
		if (pud_none(pud))
			return 0;
		if (pud_huge(pud)) {
			if (!gup_hugepte((pte_t *)pudp, PUD_SIZE, addr, next,
					 write, pages, nr))
				return 0;
		} else if (is_hugepd(pudp)) {
			if (!gup_hugepd((hugepd_t *)pudp, PUD_SHIFT,
					addr, next, write, pages, nr))
				return 0;
		} else if (!gup_pmd_range(pud, addr, next, write, pages, nr))
			return 0;
	} while (pudp++, addr = next, addr != end);

	return 1;
}

Beispiel #2

Datei: gup.c Projekt: 1800alex/linux

static int gup_pud_range(pgd_t pgd, unsigned long addr, unsigned long end,
			int write, struct page **pages, int *nr)
{
	unsigned long next;
	pud_t *pudp;

	pudp = pud_offset(&pgd, addr);
	do {
		pud_t pud = *pudp;

		next = pud_addr_end(addr, end);
		if (pud_none(pud))
			return 0;
		if (!gup_pmd_range(pud, addr, next, write, pages, nr))
			return 0;
	} while (pudp++, addr = next, addr != end);

	return 1;
}