On 2025-08-20, Askar Safin [off-list ref] wrote:

 ---- On Tue, 12 Aug 2025 18:33:04 +0400  Aleksa Sarai [off-list ref] wrote --- 
 >   Unlike open_tree(2) with OPEN_TREE_CLONE, fsmount() can only be called
 >   once in the lifetime of a filesystem context.

Weird. open_tree doesn't get filesystem context as argument at all.
I suggest just this:

  fsmount() can only be called
  once in the lifetime of a filesystem context.

The reason I wanted to include the comparison is that you can create
multiple mount objects from the same underlying object using
open_tree(2) but that's not possible with fsmount(2) (at least, not
without creating a new filesystem context each time).

-- 
Aleksa Sarai
Senior Software Engineer (Containers)
SUSE Linux GmbH
https://www.cyphar.com/