It would be very practical if the list of pages which links to a page which is being deleted could be displayed for admins when using "action=delete". This would help to fix the existent links on those pages (and to double-check if the page should really be deleted).
Each subpage item could have a link to edit them such as:
- Page 1 (edit)
- Page 123 (edit)
This request is similar to Bug #30666.