38 	MREMAP_NO_RESIZE,	/* old_len == new_len, if not moved, do nothing. */
39 	MREMAP_SHRINK,		/* old_len > new_len. */
40 	MREMAP_EXPAND,		/* old_len < new_len. */
54 	unsigned long new_len;	/* Desired new length of mapping. */  member
67 	unsigned long delta;		/* Absolute delta of old_len,new_len. */
880 	vrm->delta = abs_diff(vrm->old_len, vrm->new_len);  in vrm_set_delta()
889 	if (vrm->old_len > vrm->new_len)  in vrm_remap_type()
904 	unsigned long end_new = vrm->new_addr + vrm->new_len;  in vrm_overlaps()
957 	res = get_unmapped_area(vma->vm_file, new_addr, vrm->new_len, pgoff,  in vrm_set_new_addr()
984 		charged = vrm->new_len >> PAGE_SHIFT;  in vrm_calc_charge()
1193 	new_vma = copy_vma(&vma, vrm->new_addr, vrm->new_len, new_pgoff,  in copy_vma_and_data()
1227 		vrm->old_len = vrm->new_len;  in copy_vma_and_data()
1299 	 * since do_munmap() will decrement it by old_len == new_len.  in move_vma()
1308 	vrm_stat_account(vrm, vrm->new_len);  in move_vma()
1320  * The user has requested that the VMA be shrunk (i.e., old_len > new_len), so
1330 	unsigned long unmap_start = vrm->addr + vrm->new_len;  in shrink_vma()
1374 		err = do_munmap(mm, vrm->new_addr, vrm->new_len,  in mremap_to()
1396 		vrm->old_len = vrm->new_len;  in mremap_to()
1399 	/* MREMAP_DONTUNMAP expands by old_len since old_len == new_len */  in mremap_to()
1487 	vrm->new_len = ALIGN(vrm->new_len, huge_page_size(h));  in align_hugetlb()
1499 	if (vrm->new_len > vrm->old_len)  in align_hugetlb()
1603 	if (vrm->old_len != vrm->new_len)  in vrm_move_only()
1656 	unsigned long old_len, new_len, pgoff;  in check_prep_vma()  local
1680 	new_len = vrm->new_len;  in check_prep_vma()
1705 		old_len = new_len;  in check_prep_vma()
1723 	if (new_len == old_len)  in check_prep_vma()
1733 	if (pgoff + (new_len >> PAGE_SHIFT) < pgoff)  in check_prep_vma()
1771 	if (!vrm->new_len)  in check_mremap_params()
1775 	if (vrm->new_len > TASK_SIZE)  in check_mremap_params()
1783 	if (vrm->new_addr > TASK_SIZE - vrm->new_len)  in check_mremap_params()
1795 	if (flags & MREMAP_DONTUNMAP && vrm->old_len != vrm->new_len)  in check_mremap_params()
1872 		vrm->old_len = vrm->new_len = len;  in remap_move()
1905 		target_addr = res_vma + vrm->new_len;  in remap_move()
1918 	vrm->new_len = PAGE_ALIGN(vrm->new_len);  in do_mremap()
1962 		unsigned long, new_len, unsigned long, flags,  in SYSCALL_DEFINE5()  argument
1982 		.new_len = new_len,  in SYSCALL_DEFINE5()