is_vma_resv_set

Name:is_vma_resv_set

Proto:static int is_vma_resv_set(struct vm_area_struct *vma, unsigned long flag)

Type:int

Parameter:

Type	Parameter	Name
struct vm_area_struct *	vma
unsigned long	flag

744

VM_BUG_ON_VMA(!is_vm_hugetlb_page(vma), vma)

746

Return (These helpers are used to track how many pages are reserved for* faults in a MAP_PRIVATE mapping & flag) != 0

**Caller**
Name	Describe
vma_has_reserves	Returns true if the VMA has associated reserve pages
__vma_reservation_common
hugetlb_vm_op_open
hugetlb_vm_op_close
unmap_ref_private	This is called when the original mapper is failing to COW a MAP_PRIVATE* mappping it owns the reserve page for. The intention is to unmap the page* from other VMAs and let the children be SIGKILLed if they are faulting the* same region.
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
hugetlb_reserve_pages

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