19 	struct vm_area_struct *vma = vm_area_alloc(mm);  in alloc_vma()  local
21 	if (vma == NULL)  in alloc_vma()
24 	vma->vm_start = start;  in alloc_vma()
25 	vma->vm_end = end;  in alloc_vma()
26 	vma->vm_pgoff = pgoff;  in alloc_vma()
27 	vm_flags_reset(vma, vm_flags);  in alloc_vma()
28 	vma_assert_detached(vma);  in alloc_vma()
30 	return vma;  in alloc_vma()
33 void detach_free_vma(struct vm_area_struct *vma)  in detach_free_vma()  argument
35 	vma_mark_detached(vma);  in detach_free_vma()
36 	vm_area_free(vma);  in detach_free_vma()
43 	struct vm_area_struct *vma = alloc_vma(mm, start, end, pgoff, vm_flags);  in alloc_and_link_vma()  local
45 	if (vma == NULL)  in alloc_and_link_vma()
48 	if (attach_vma(mm, vma)) {  in alloc_and_link_vma()
49 		detach_free_vma(vma);  in alloc_and_link_vma()
58 	vma->vm_lock_seq = UINT_MAX;  in alloc_and_link_vma()
60 	return vma;  in alloc_and_link_vma()
71 	struct vm_area_struct *vma;  in cleanup_mm()  local
78 	for_each_vma(*vmi, vma) {  in cleanup_mm()
79 		detach_free_vma(vma);  in cleanup_mm()
88 bool vma_write_started(struct vm_area_struct *vma)  in vma_write_started()  argument
90 	int seq = vma->vm_lock_seq;  in vma_write_started()
93 	vma->vm_lock_seq = UINT_MAX;  in vma_write_started()
99 void __vma_set_dummy_anon_vma(struct vm_area_struct *vma,  in __vma_set_dummy_anon_vma()  argument
102 	vma->anon_vma = anon_vma;  in __vma_set_dummy_anon_vma()
103 	INIT_LIST_HEAD(&vma->anon_vma_chain);  in __vma_set_dummy_anon_vma()
104 	list_add(&avc->same_vma, &vma->anon_vma_chain);  in __vma_set_dummy_anon_vma()
105 	avc->anon_vma = vma->anon_vma;  in __vma_set_dummy_anon_vma()
108 void vma_set_dummy_anon_vma(struct vm_area_struct *vma,  in vma_set_dummy_anon_vma()  argument
111 	__vma_set_dummy_anon_vma(vma, avc, &dummy_anon_vma);  in vma_set_dummy_anon_vma()
124 void vma_set_range(struct vm_area_struct *vma,  in vma_set_range()  argument
128 	vma->vm_start = start;  in vma_set_range()
129 	vma->vm_end = end;  in vma_set_range()
130 	vma->vm_pgoff = pgoff;  in vma_set_range()