Re: git: f5f277728ade - main - nfsd: Fix NFS access to .zfs/snapshot snapshots

Am 2023-11-23 16:25, schrieb Rick Macklem:
> The branch main has been updated by rmacklem:
> 
> URL: 
> https://cgit.FreeBSD.org/src/commit/?id=f5f277728adec4c5b3e840a1fb16bd16f8cc956d
> 
> commit f5f277728adec4c5b3e840a1fb16bd16f8cc956d
> Author:     Rick Macklem <rmacklem@FreeBSD.org>
> AuthorDate: 2023-11-23 15:23:33 +0000
> Commit:     Rick Macklem <rmacklem@FreeBSD.org>
> CommitDate: 2023-11-23 15:23:33 +0000
> 
>     nfsd: Fix NFS access to .zfs/snapshot snapshots
> 
>     When a process attempts to access a snapshot under
>     /<dataset>/.zfs/snapshot, the snapshot is automounted.
>     However, without this patch, the automount does not
>     set mnt_exjail, which results in the snapshot not being
>     accessible over NFS.
> 
>     This patch defines a new function called vfs_exjail_clone()
>     which sets mnt_exjail from another mount point and
>     then uses that function to set mnt_exjail in the snapshot
>     automount.  A separate patch that is currently a pull request
>     for OpenZFS, calls this function to fix the problem.

May the same/similar fix like for ZFS be needed / useful for nullfs 
mounted stuff?

I have a ZFS dataset which is mounted via nullfs into a jail. This 
nullfs-mount is then exported via samba. In samba I have the shadow-copy 
stuff enabled, but it doesn't work, as the jails can't access the 
snapshot.

Bye,
Alexander.

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