[Bug 266236] ZFS NFS : .zfs/snapshot : Stale file handle

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=266236

--- Comment #28 from Michel Le Cocq <nomad@neuronfarm.net> ---
I made the _exact_ same changes : in :
sys/contrib/openzfs/module/os/freebsd/zfs/zfs_vfsops.c

-       if (fidp->fid_len == LONG_FID_LEN && (fid_gen > 1 || setgen != 0)) {
+       if (fidp->fid_len == LONG_FID_LEN && setgen != 0) {
+               ZFS_EXIT(zfsvfs);

On a small test server all seems to work has normal now for me.
- Access to snapshots over NFS succeeds
- zfs doesn't hang
- can destroy entered-via-nfs snapshots

I just did a git pull of src then remove the line and add the two others then
create a new zfs boot env and :

make -j 8 buildkernel
make -j 8 installkernel

root@smallfish:~ # uname -a
FreeBSD smallfish 13.1-RELEASE-p2 FreeBSD 13.1-RELEASE-p2 #0
releng/13.1-752f813d6-dirty: Mon Oct 10 11:46:40 CEST 2022    
root@smallfish:/usr/obj/usr/src/amd64.amd64/sys/GENERIC amd64
root@smallfish:~ # 

Cool :-)

Now waiting for the implementation in freebsd-update for my production
environnement.

Thanks to all of you.

Do you have an idee of when it be avaible in freebsd-update ?

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