anon_vma_interval_tree_pre_update

Name:vma has some anon_vma assigned, and is already inserted on that* anon_vma's interval trees.* Before updating the vma's vm_start / vm_end / vm_pgoff fields, the* vma must be removed from the anon_vma's interval trees using

Proto:static inline void anon_vma_interval_tree_pre_update_vma(struct vm_area_struct *vma)

Type:void

Parameter:

Type	Parameter	Name
struct vm_area_struct *	vma

513

list_for_each_entry - iterate over list of given type*@pos: the type * to use as a loop cursor.*@head: the head for your list.*@member: the name of the list_head within the struct.(avc, & Serialized by mmap_sem &* page_table_lock , same_vma)

514

anon_vma_interval_tree_remove(avc, & Interval tree of private "related" vmas )

**Caller**
Name	Describe
__vma_adjust	We cannot adjust vm_start, vm_end, vm_pgoff fields of a vma that* is already present in an i_mmap tree without adjusting the tree.* The following helper function should be used when such adjustments* are necessary
expand_downwards	vma is the first one with address < vma->vm_start. Have to extend vma.

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