Is it possible to create a vnode for a regular file in a file system without linking the vnode to any directory, so that it disappears when all open file descriptors to it are closed? (As far as I can tell, this isn't possible with any of the vn_* or VOP_* functions?)
If this idea is indeed not possible, should/could I implement something like this? (If so, how?) For context, I'm currently working on implementing memfd_create(2), and thought this might be a shortcut. Otherwise, I'll have to implement it in terms of uvm operations (which is fine, just more work). Thanks, Theo(dore)
