linux-master/mm/mmap.c

231 		if (!brkvma || brkvma->vm_start >= oldbrk)
302 		if (VM_WARN_ON_ONCE_MM(vma->vm_start != vmi_start, mm))
339  * Before updating the vma's vm_start / vm_end / vm_pgoff fields, the
375 		unsigned long vm_start = max(addr, vma->vm_start);
378 		nr_pages += PHYS_PFN(vm_end - vm_start);
412 	vma_iter_config(&vmi, vma->vm_start, vma->vm_end);
470 		uprobe_munmap(vp->vma, vp->vma->vm_start, vp->vma->vm_end);
473 			uprobe_munmap(vp->adj_next, vp->adj_next->vm_start,
558 			uprobe_munmap(vp->remove, vp->remove->vm_start,
655 		  next != vma && end > next->vm_start);
657 	VM_WARN_ON(vma->vm_start < start || vma->vm_end > end);
692 	WARN_ON((vma->vm_start != start) && (vma->vm_end != end));
694 	if (vma->vm_start < start)
695 		vma_iter_config(vmi, vma->vm_start, start);
903 		vma_start = prev->vm_start;
923 	VM_WARN_ON(prev && addr <= prev->vm_start);
924 	VM_WARN_ON(curr && (addr != curr->vm_start || end > curr->vm_end));
969 				adj_start = (end - curr->vm_start);
1005 	if (vma_start < vma->vm_start || vma_end > vma->vm_end)
1011 		vma_iter_config(vmi, adjust->vm_start + adj_start,
1030 		adjust->vm_start += adj_start;
1067 	return a->vm_end == b->vm_start &&
1071 		b->vm_pgoff == a->vm_pgoff + ((b->vm_start - a->vm_start) >> PAGE_SHIFT);
1659 			high_limit = tmp->vm_start;
1948 	new_start = (vma->vm_flags & VM_GROWSUP) ? vma->vm_start :
1974 	MA_STATE(mas, &mm->mm_mt, vma->vm_start, address);
2002 	__mas_set_range(&mas, vma->vm_start, address - 1);
2015 	 * vma->vm_start/vm_end cannot change under us because the caller
2025 		size = address - vma->vm_start;
2064  * vma is the first one with address < vma->vm_start.  Have to extend vma.
2070 	MA_STATE(mas, &mm->mm_mt, vma->vm_start, vma->vm_start);
2092 		mas_next_range(&mas, vma->vm_start);
2107 	 * vma->vm_start/vm_end cannot change under us because the caller
2114 	if (address < vma->vm_start) {
2118 		grow = (vma->vm_start - address) >> PAGE_SHIFT;
2138 				vma->vm_start = address;
2183 	if (vma && (vma->vm_start <= addr))
2208 	if (vma->vm_start <= addr)
2210 	start = vma->vm_start;
2251 	if (vma && vma->vm_start <= addr)
2313 				 next ? next->vm_start : USER_PGTABLES_CEILING,
2330 	WARN_ON(vma->vm_start >= addr);
2346 		new->vm_start = addr;
2347 		new->vm_pgoff += ((addr - vma->vm_start) >> PAGE_SHIFT);
2351 	vma_iter_config(vmi, new->vm_start, new->vm_end);
2375 	vma_adjust_trans_huge(vma, vma->vm_start, addr, 0);
2378 		vma->vm_start = addr;
2379 		vma->vm_pgoff += (addr - new->vm_start) >> PAGE_SHIFT;
2436 	pgoff_t pgoff = vma->vm_pgoff + ((start - vma->vm_start) >> PAGE_SHIFT);
2444 	if (vma->vm_start < start) {
2527 	if (start > vma->vm_start) {
2580 		BUG_ON(next->vm_start < start);
2581 		BUG_ON(next->vm_start > end);
2770 	if (next && next->vm_start == end && !vma_policy(next) &&
2784 		merge_start = prev->vm_start;
2837 		if (WARN_ON((addr != vma->vm_start)))
2847 						  vma->vm_start, vma->vm_end,
2948 		unmap_region(mm, &vmi.mas, vma, prev, next, vma->vm_start,
3035 			if (next->vm_start != prev->vm_end)
3140 		vma_iter_config(vmi, vma->vm_start, addr + len);
3148 		vma_adjust_trans_huge(vma, vma->vm_start, addr + len, 0);
3315 	if (find_vma_intersection(mm, vma->vm_start, vma->vm_end))
3336 		vma->vm_pgoff = vma->vm_start >> PAGE_SHIFT;
3357 	unsigned long vma_start = vma->vm_start;
3373 	if (new_vma && new_vma->vm_start < addr + len)
3381 		if (unlikely(vma_start >= new_vma->vm_start &&