Re: kern/57467: zfs cannot umount snapshots once access it via /usr/.zfs/shapshots/ ....

[mlelstv%serpens.de@localhost (Michael van Elst)]

The following reply was made to PR kern/57467; it has been noted by GNATS.

From: mlelstv%serpens.de@localhost (Michael van Elst)
To: gnats-bugs%netbsd.org@localhost
Cc: 
Subject: Re: kern/57467: zfs cannot umount snapshots once access it via /usr/.zfs/shapshots/ ....
Date: Wed, 14 Jun 2023 15:11:20 -0000 (UTC)

 nervoso%k1.com.br@localhost (Sergio de Almeida Lenzi) writes:
 
 >>   The regular umount (which works on Linux) fails with "Invalid argument" because the snapshot is mounted with a vnode that isn't marked as VV_ROOT. I'm not sure if that flag could easily be set for it. 
 
 >If I patch zfsmount to set the VV_ROOT  will it work?
 
 vnodes are part of the kernel. I don't know if that will work or if this
 wreaks havoc...