zap_p4d_range

Name:zap_p4d_range

Proto:static inline unsigned long zap_p4d_range(struct mmu_gather *tlb, struct vm_area_struct *vma, pgd_t *pgd, unsigned long addr, unsigned long end, struct zap_details *details)

Type:unsigned long

Parameter:

Type	Parameter	Name
struct mmu_gather *	tlb
struct vm_area_struct *	vma
pgd_t *	pgd
unsigned long	addr
unsigned long	end
struct zap_details *	details

1229

p4d = p4d_offset(pgd, addr)

1230

1231

next = p4d_addr_end(addr, end)

1232

If p4d_none_or_clear_bad(p4d) Then Continue

1234

next = zap_pud_range(tlb, vma, p4d, addr, next, details)

1235

When p4d++, addr = next , addr != end cycle

1237

Return addr

**Caller**
Name	Describe
unmap_page_range

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