> On Jun 26, 2023, at 3:13 PM, Theodore Preduta <t...@pta.gg> wrote: > > 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?)
There isn't a general way to do this. > 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). Seems like these objects should be implemented above the file system ... just create a new descriptor type and interface directly with UVM. -- thorpej
