Fix ZFS on FreeBSD so that snapshots under .zfs/snapshot are NFS visible #15563
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One of the required tests failed, but since it is a Linux |
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. Signed-off-by: Rick Macklem <rmacklem@uoguelph.ca>
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@rmacklem Unfortunately some of the CI tests are not very stable lately. It can be unrelated. |
amotin
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Nov 23, 2023
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It got some review on FreeBSD side: https://reviews.freebsd.org/D42672 . I can not say much about the VFS code, but it looks OK.
behlendorf
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Status: Accepted
tonyhutter
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Nov 30, 2023
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
lundman
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Dec 12, 2023
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 openzfs#15563
gamanakis
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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 openzfs#15563
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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.
Signed-off by: Rick Macklem rmacklem@uoguelph.ca
Motivation and Context
Without this patch, newer versions of FreeBSD (post 13.2) cannot access
ZFS snapshots in .zfs/snapshot over NFS.
Description
Added a new argument to mount_snapshot() which is the parent
mount point so that vfs_exjail_clone() can be called with that
parent mount point.
vfs_exjail_clone() fills in mnt_exjail, so that the snapshot can
be accessed over NFS.
How Has This Been Tested?
An NFS mount of a dataset on a FreeBSD NFS server (post 13.2)
without this patch could not access the snapshots in .zfs/snapshot.
After applying this patch, the NFS client did access the snapshot
on .zfs/snapshot without difficulty.
Types of changes
Checklist:
Signed-off-by.