hugetlb_vm_op_close

Name:hugetlb_vm_op_close

Proto:static void hugetlb_vm_op_close(struct vm_area_struct *vma)

Type:void

Parameter:

Type	Parameter	Name
struct vm_area_struct *	vma

3178

h = hstate_vma(vma)

3179

resv = vma_resv_map(vma)

3180

spool = subpool_vma(vma)

3184

If Not resv || Not is_vma_resv_set(vma, Flags for MAP_PRIVATE reservations. These are stored in the bottom* bits of the reservation map pointer, which are always clear due to* alignment.) Then Return

3187

start = Convert the address within this vma to the page offset within* the mapping, in pagecache page units; huge pages here.

3188

end = Convert the address within this vma to the page offset within* the mapping, in pagecache page units; huge pages here.

3190

reserve = end - start - Count and return the number of huge pages in the reserve map* that intersect with the range [f, t).

3192

kref_put - decrement refcount for object.*@kref: object.*@release: pointer to the function that will clean up the object when the* last reference to the object is released.* This pointer is required, and it is not acceptable to pass kfree

3194

If reserve Then

3199

gbl_reserve = Subpool accounting for freeing and unreserving pages.* Return the number of global page reservations that must be dropped.* The return value may only be different than the passed value (delta)* in the case where a subpool minimum size must be maintained.

3200

Forward declaration

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