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FreeBSD: Fix ZFS so that snapshots under .zfs/snapshot are NFS visible

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Call vfs_exjail_clone() for mounts created under .zfs/snapshot
to fill in the mnt_exjail field for the mount.  If this is not
done, the snapshots under .zfs/snapshot with not be accessible
over NFS.

This version has the argument name in vfs.h fixed to match that
of the name in spl_vfs.c, although it really does not matter.

External-issue: https://reviews.freebsd.org/D42672
Reviewed-by: Alexander Motin <mav@FreeBSD.org>
Signed-off-by: Rick Macklem <rmacklem@uoguelph.ca>
Closes #15563
This commit is contained in:
rmacklem
2023-11-27 16:31:03 -08:00
committed by GitHub
parent c1a47de86f
commit acb33ee1c1
3 changed files with 11 additions and 3 deletions
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module/os/freebsd/zfs/zfs_ctldir.c
+2 -1
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@@ -1026,7 +1026,8 @@ zfsctl_snapdir_lookup(struct vop_lookup_args *ap)
"%s/" ZFS_CTLDIR_NAME "/snapshot/%s",
dvp->v_vfsp->mnt_stat.f_mntonname, name);
err = mount_snapshot(curthread, vpp, "zfs", mountpoint, fullname, 0);
err = mount_snapshot(curthread, vpp, "zfs", mountpoint, fullname, 0,
dvp->v_vfsp);
kmem_free(mountpoint, mountpoint_len);
if (err == 0) {
/*