restore_reserve_on_error

Name:This routine is called to restore a reservation on error paths

Proto:static void restore_reserve_on_error(struct hstate *h, struct vm_area_struct *vma, unsigned long address, struct page *page)

Type:void

Parameter:

Type	Parameter	Name
struct hstate *	h
struct vm_area_struct *	vma
unsigned long	address
struct page *	page

1966

If Value for the false possibility is greater at compile time(Private page markings that may be used by the filesystem that owns the page* for its own purposes.* - PG_private and PG_private_2 cause releasepage() and co to be invoked) Then

1967

rc = vma_needs_reservation(h, vma, address)

1969

If Value for the false possibility is greater at compile time(rc < 0) Then

1981

Private page markings that may be used by the filesystem that owns the page* for its own purposes.* - PG_private and PG_private_2 cause releasepage() and co to be invoked

1982

Else if rc Then

1983

rc = vma_add_reservation(h, vma, address)

1984

If Value for the false possibility is greater at compile time(rc < 0) Then Private page markings that may be used by the filesystem that owns the page* for its own purposes.* - PG_private and PG_private_2 cause releasepage() and co to be invoked

1990

Else vma_end_reservation(h, vma, address)

**Caller**
Name	Describe
hugetlb_cow	Hugetlb_cow() should be called with page lock of the original hugepage held.* Called with hugetlb_instantiation_mutex held and pte_page locked so we* cannot race with other handlers or page migration.
hugetlb_no_page

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