C++ pud_addr_end函数代码示例

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本文整理汇总了C++中pud_addr_end函数的典型用法代码示例。如果您正苦于以下问题：C++ pud_addr_end函数的具体用法？C++ pud_addr_end怎么用？C++ pud_addr_end使用的例子？那么恭喜您, 这里精选的函数代码示例或许可以为您提供帮助。

在下文中一共展示了pud_addr_end函数的20个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于我们的系统推荐出更棒的C++代码示例。

示例1: unmap_range

static void unmap_range(struct kvm *kvm, pgd_t *pgdp,
			unsigned long long start, u64 size)
{
	pgd_t *pgd;
	pud_t *pud;
	pmd_t *pmd;
	pte_t *pte;
	unsigned long long addr = start, end = start + size;
	u64 next;

	while (addr < end) {
		pgd = pgdp + pgd_index(addr);
		pud = pud_offset(pgd, addr);
		if (pud_none(*pud)) {
			addr = pud_addr_end(addr, end);
			continue;
		}

		if (pud_huge(*pud)) {
			/*
			 * If we are dealing with a huge pud, just clear it and
			 * move on.
			 */
			clear_pud_entry(kvm, pud, addr);
			addr = pud_addr_end(addr, end);
			continue;
		}

		pmd = pmd_offset(pud, addr);
		if (pmd_none(*pmd)) {
			addr = pmd_addr_end(addr, end);
			continue;
		}

		if (!kvm_pmd_huge(*pmd)) {
			pte = pte_offset_kernel(pmd, addr);
			clear_pte_entry(kvm, pte, addr);
			next = addr + PAGE_SIZE;
		}

		/*
		 * If the pmd entry is to be cleared, walk back up the ladder
		 */
		if (kvm_pmd_huge(*pmd) || page_empty(pte)) {
			clear_pmd_entry(kvm, pmd, addr);
			next = pmd_addr_end(addr, end);
			if (page_empty(pmd) && !page_empty(pud)) {
				clear_pud_entry(kvm, pud, addr);
				next = pud_addr_end(addr, end);
			}
		}

		addr = next;
	}
}

开发者ID:AD5GB，项目名称:kernel_n5_3.10-experimental，代码行数:55，代码来源:mmu.c

示例2: ioremap_pud_range

static inline int ioremap_pud_range(p4d_t *p4d, unsigned long addr,
		unsigned long end, phys_addr_t phys_addr, pgprot_t prot)
{
	pud_t *pud;
	unsigned long next;

	phys_addr -= addr;
	pud = pud_alloc(&init_mm, p4d, addr);
	if (!pud)
		return -ENOMEM;
	do {
		next = pud_addr_end(addr, end);

		if (ioremap_pud_enabled() &&
		    ((next - addr) == PUD_SIZE) &&
		    IS_ALIGNED(phys_addr + addr, PUD_SIZE)) {
			if (pud_set_huge(pud, phys_addr + addr, prot))
				continue;
		}

		if (ioremap_pmd_range(pud, addr, next, phys_addr + addr, prot))
			return -ENOMEM;
	} while (pud++, addr = next, addr != end);
	return 0;
}

开发者ID:ReneNyffenegger，项目名称:linux，代码行数:25，代码来源:ioremap.c

示例3: create_hyp_pud_mappings

static int create_hyp_pud_mappings(pgd_t *pgd, unsigned long start,
				   unsigned long end, unsigned long pfn,
				   pgprot_t prot)
{
	pud_t *pud;
	pmd_t *pmd;
	unsigned long addr, next;
	int ret;

	addr = start;
	do {
		pud = pud_offset(pgd, addr);

		if (pud_none_or_clear_bad(pud)) {
			pmd = pmd_alloc_one(NULL, addr);
			if (!pmd) {
				kvm_err("Cannot allocate Hyp pmd\n");
				return -ENOMEM;
			}
			pud_populate(NULL, pud, pmd);
			get_page(virt_to_page(pud));
			kvm_flush_dcache_to_poc(pud, sizeof(*pud));
		}

		next = pud_addr_end(addr, end);
		ret = create_hyp_pmd_mappings(pud, addr, next, pfn, prot);
		if (ret)
			return ret;
		pfn += (next - addr) >> PAGE_SHIFT;
	} while (addr = next, addr != end);

	return 0;
}

开发者ID:0x00evil，项目名称:linux，代码行数:33，代码来源:mmu.c

示例4: gup_pud_range

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;
}

开发者ID:myhro，项目名称:debian-linux-kernel-gzip，代码行数:27，代码来源:gup.c

示例5: copy_pud

static int copy_pud(pgd_t *dst_pgdp, pgd_t *src_pgdp, unsigned long start,
		    unsigned long end)
{
	pud_t *dst_pudp;
	pud_t *src_pudp;
	unsigned long next;
	unsigned long addr = start;

	if (pgd_none(READ_ONCE(*dst_pgdp))) {
		dst_pudp = (pud_t *)get_safe_page(GFP_ATOMIC);
		if (!dst_pudp)
			return -ENOMEM;
		pgd_populate(&init_mm, dst_pgdp, dst_pudp);
	}
	dst_pudp = pud_offset(dst_pgdp, start);

	src_pudp = pud_offset(src_pgdp, start);
	do {
		pud_t pud = READ_ONCE(*src_pudp);

		next = pud_addr_end(addr, end);
		if (pud_none(pud))
			continue;
		if (pud_table(pud)) {
			if (copy_pmd(dst_pudp, src_pudp, addr, next))
				return -ENOMEM;
		} else {
			set_pud(dst_pudp,
				__pud(pud_val(pud) & ~PMD_SECT_RDONLY));
		}
	} while (dst_pudp++, src_pudp++, addr = next, addr != end);

	return 0;
}

开发者ID:CaiBirdZhang，项目名称:linux，代码行数:34，代码来源:hibernate.c

示例6: idmap_del_pud

static void idmap_del_pud(pgd_t *pgd, unsigned long addr, unsigned long end)
{
	pud_t *pud = pud_offset(pgd, addr);
	unsigned long next;

	do {
		next = pud_addr_end(addr, end);
		idmap_del_pmd(pud, addr, next);
	} while (pud++, addr = next, addr != end);
}

开发者ID:HuxyUK，项目名称:xpenology-3.x，代码行数:10，代码来源:idmap.c

示例7: kasan_pud_populate

static void __init kasan_pud_populate(pgd_t *pgdp, unsigned long addr,
				      unsigned long end, int node, bool early)
{
	unsigned long next;
	pud_t *pudp = kasan_pud_offset(pgdp, addr, node, early);

	do {
		next = pud_addr_end(addr, end);
		kasan_pmd_populate(pudp, addr, next, node, early);
	} while (pudp++, addr = next, addr != end && pud_none(READ_ONCE(*pudp)));
}

开发者ID:150balbes，项目名称:Amlogic_s905-kernel，代码行数:11，代码来源:kasan_init.c

示例8: unmap_range

static void unmap_range(struct kvm *kvm, pgd_t *pgdp,
			unsigned long long start, u64 size)
{
	pgd_t *pgd;
	pud_t *pud;
	pmd_t *pmd;
	pte_t *pte;
	unsigned long long addr = start, end = start + size;
	u64 next;

	while (addr < end) {
		pgd = pgdp + pgd_index(addr);
		pud = pud_offset(pgd, addr);
		if (pud_none(*pud)) {
			addr = pud_addr_end(addr, end);
			continue;
		}

		pmd = pmd_offset(pud, addr);
		if (pmd_none(*pmd)) {
			addr = pmd_addr_end(addr, end);
			continue;
		}

		pte = pte_offset_kernel(pmd, addr);
		clear_pte_entry(kvm, pte, addr);
		next = addr + PAGE_SIZE;

		/* If we emptied the pte, walk back up the ladder */
		if (page_empty(pte)) {
			clear_pmd_entry(kvm, pmd, addr);
			next = pmd_addr_end(addr, end);
			if (page_empty(pmd) && !page_empty(pud)) {
				clear_pud_entry(kvm, pud, addr);
				next = pud_addr_end(addr, end);
			}
		}

		addr = next;
	}
}

开发者ID:ManCheol，项目名称:kernel，代码行数:41，代码来源:mmu.c

示例9: alloc_init_pud

static void alloc_init_pud(pgd_t *pgd, unsigned long addr, unsigned long end,
				  phys_addr_t phys, pgprot_t prot,
				  phys_addr_t (*pgtable_alloc)(void))
{
	pud_t *pud;
	unsigned long next;

	if (pgd_none(*pgd)) {
		phys_addr_t pud_phys;
		BUG_ON(!pgtable_alloc);
		pud_phys = pgtable_alloc();
		__pgd_populate(pgd, pud_phys, PUD_TYPE_TABLE);
	}
	BUG_ON(pgd_bad(*pgd));

	pud = pud_set_fixmap_offset(pgd, addr);
	do {
		next = pud_addr_end(addr, end);

		/*
		 * For 4K granule only, attempt to put down a 1GB block
		 */
		if (use_1G_block(addr, next, phys) &&
		    block_mappings_allowed(pgtable_alloc)) {
			pud_t old_pud = *pud;
			pud_set_huge(pud, phys, prot);

			/*
			 * If we have an old value for a pud, it will
			 * be pointing to a pmd table that we no longer
			 * need (from swapper_pg_dir).
			 *
			 * Look up the old pmd table and free it.
			 */
			if (!pud_none(old_pud)) {
				flush_tlb_all();
				if (pud_table(old_pud)) {
					phys_addr_t table = pud_page_paddr(old_pud);
					if (!WARN_ON_ONCE(slab_is_available()))
						memblock_free(table, PAGE_SIZE);
				}
			}
		} else {
			alloc_init_pmd(pud, addr, next, phys, prot,
				       pgtable_alloc);
		}
		phys += next - addr;
	} while (pud++, addr = next, addr != end);

	pud_clear_fixmap();
}

开发者ID:1314cc，项目名称:linux，代码行数:51，代码来源:mmu.c

示例10: msync_pud_range

static inline unsigned long msync_pud_range(struct vm_area_struct *vma,
			pgd_t *pgd, unsigned long addr, unsigned long end)
{
	pud_t *pud;
	unsigned long next;
	unsigned long ret = 0;

	pud = pud_offset(pgd, addr);
	do {
		next = pud_addr_end(addr, end);
		if (pud_none_or_clear_bad(pud))
			continue;
		ret += msync_pmd_range(vma, pud, addr, next);
	} while (pud++, addr = next, addr != end);
	return ret;
}

开发者ID:FatSunHYS，项目名称:OSCourseDesign，代码行数:16，代码来源:msync.c

示例11: clear_pud_range

static unsigned long clear_pud_range(struct vm_area_struct *vma, pgd_t *pgd,
				     unsigned long addr, unsigned long end)
{
	pud_t *pud;
	unsigned long next;

	pud = pud_offset(pgd, addr);
	do {
		next = pud_addr_end(addr, end);
		if (pud_none(*pud))
			continue;
		next = clear_pmd_range(vma, pud, addr, next);
	} while (pud++, addr = next, addr != end);

	return addr;
}

开发者ID:lastweek，项目名称:NVM，代码行数:16，代码来源:migrate.c

示例12: kasan_early_pud_populate

static void __init kasan_early_pud_populate(pgd_t *pgd,
					unsigned long addr,
					unsigned long end)
{
	pud_t *pud;
	unsigned long next;

	if (pgd_none(*pgd))
		pgd_populate(&init_mm, pgd, kasan_zero_pud);

	pud = pud_offset_kimg(pgd, addr);
	do {
		next = pud_addr_end(addr, end);
		kasan_early_pmd_populate(pud, addr, next);
	} while (pud++, addr = next, addr != end && pud_none(*pud));
}

开发者ID:020gzh，项目名称:linux，代码行数:16，代码来源:kasan_init.c

示例13: kasan_early_pud_populate

static void __init kasan_early_pud_populate(pgd_t *pgd,
					unsigned long addr,
					unsigned long end)
{
	pud_t *pud;
	unsigned long next;

	if (pgd_none(*pgd))
		__pgd_populate(pgd, __pa_symbol(kasan_zero_pud), PUD_TYPE_TABLE);

	pud = pud_offset_kimg(pgd, addr);
	do {
		next = pud_addr_end(addr, end);
		kasan_early_pmd_populate(pud, addr, next);
	} while (pud++, addr = next, addr != end && pud_none(*pud));
}

开发者ID:AshishNamdev，项目名称:linux，代码行数:16，代码来源:kasan_init.c

示例14: check_pud_range

static inline int check_pud_range(struct mm_struct *mm, pgd_t *pgd,
		unsigned long addr, unsigned long end, unsigned long *nodes)
{
	pud_t *pud;
	unsigned long next;

	pud = pud_offset(pgd, addr);
	do {
		next = pud_addr_end(addr, end);
		if (pud_none_or_clear_bad(pud))
			continue;
		if (check_pmd_range(mm, pud, addr, next, nodes))
			return -EIO;
	} while (pud++, addr = next, addr != end);
	return 0;
}

开发者ID:kzlin129，项目名称:tt-gpl，代码行数:16，代码来源:mempolicy.c

示例15: alloc_init_pud

static void alloc_init_pud(struct mm_struct *mm, pgd_t *pgd,
				  unsigned long addr, unsigned long end,
				  phys_addr_t phys, pgprot_t prot,
				  void *(*alloc)(unsigned long size))
{
	pud_t *pud;
	unsigned long next;

	if (pgd_none(*pgd)) {
		pud = alloc(PTRS_PER_PUD * sizeof(pud_t));
		pgd_populate(mm, pgd, pud);
	}
	BUG_ON(pgd_bad(*pgd));

	pud = pud_offset(pgd, addr);
	do {
		next = pud_addr_end(addr, end);

		/*
		 * For 4K granule only, attempt to put down a 1GB block
		 */
		if (use_1G_block(addr, next, phys)) {
			pud_t old_pud = *pud;
			set_pud(pud, __pud(phys |
					   pgprot_val(mk_sect_prot(prot))));

			/*
			 * If we have an old value for a pud, it will
			 * be pointing to a pmd table that we no longer
			 * need (from swapper_pg_dir).
			 *
			 * Look up the old pmd table and free it.
			 */
			if (!pud_none(old_pud)) {
				flush_tlb_all();
				if (pud_table(old_pud)) {
					phys_addr_t table = __pa(pmd_offset(&old_pud, 0));
					if (!WARN_ON_ONCE(slab_is_available()))
						memblock_free(table, PAGE_SIZE);
				}
			}
		} else {
			alloc_init_pmd(mm, pud, addr, next, phys, prot, alloc);
		}
		phys += next - addr;
	} while (pud++, addr = next, addr != end);
}

开发者ID:BrainFucking，项目名称:linux，代码行数:47，代码来源:mmu.c

示例16: ioremap_pud_range

static inline int ioremap_pud_range(pgd_t *pgd, unsigned long addr,
		unsigned long end, unsigned long phys_addr, pgprot_t prot)
{
	pud_t *pud;
	unsigned long next;

	phys_addr -= addr;
	pud = pud_alloc(&init_mm, pgd, addr);
	if (!pud)
		return -ENOMEM;
	do {
		next = pud_addr_end(addr, end);
		if (ioremap_pmd_range(pud, addr, next, phys_addr + addr, prot))
			return -ENOMEM;
	} while (pud++, addr = next, addr != end);
	return 0;
}

开发者ID:12rafael，项目名称:jellytimekernel，代码行数:17，代码来源:ioremap.c

示例17: unuse_pud_range

static inline int unuse_pud_range(struct vm_area_struct *vma, pgd_t *pgd,
				unsigned long addr, unsigned long end,
				swp_entry_t entry, struct page *page)
{
	pud_t *pud;
	unsigned long next;

	pud = pud_offset(pgd, addr);
	do {
		next = pud_addr_end(addr, end);
		if (pud_none_or_clear_bad(pud))
			continue;
		if (unuse_pmd_range(vma, pud, addr, next, entry, page))
			return 1;
	} while (pud++, addr = next, addr != end);
	return 0;
}

开发者ID:acassis，项目名称:emlinux-ssd1935，代码行数:17，代码来源:swapfile.c

示例18: mincore_pud_range

static void mincore_pud_range(struct vm_area_struct *vma, pgd_t *pgd,
			unsigned long addr, unsigned long end,
			unsigned char *vec)
{
	unsigned long next;
	pud_t *pud;

	pud = pud_offset(pgd, addr);
	do {
		next = pud_addr_end(addr, end);
		if (pud_none_or_clear_bad(pud))
			mincore_unmapped_range(vma, addr, next, vec);
		else
			mincore_pmd_range(vma, pud, addr, next, vec);
		vec += (next - addr) >> PAGE_SHIFT;
	} while (pud++, addr = next, addr != end);
}

开发者ID:1yankeedt，项目名称:D710BST_FL24_Kernel，代码行数:17，代码来源:mincore.c

示例19: gup_pud_range

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;
}

开发者ID:1800alex，项目名称:linux，代码行数:19，代码来源:gup.c

示例20: kasan_populate_p4d

static void __init kasan_populate_p4d(p4d_t *p4d, unsigned long addr,
				      unsigned long end, int nid)
{
	pud_t *pud;
	unsigned long next;

	if (p4d_none(*p4d)) {
		void *p = early_alloc(PAGE_SIZE, nid, true);

		p4d_populate(&init_mm, p4d, p);
	}

	pud = pud_offset(p4d, addr);
	do {
		next = pud_addr_end(addr, end);
		if (!pud_large(*pud))
			kasan_populate_pud(pud, addr, next, nid);
	} while (pud++, addr = next, addr != end);
}

开发者ID:Anjali05，项目名称:linux，代码行数:19，代码来源:kasan_init_64.c

注：本文中的pud_addr_end函数示例由纯净天空整理自Github/MSDocs等源码及文档管理平台，相关代码片段筛选自各路编程大神贡献的开源项目，源码版权归原作者所有，传播和使用请参考对应项目的License；未经允许，请勿转载。