Fix ZFS on FreeBSD so that snapshots under .zfs/snapshot are NFS visible #15563
Conversation
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
|
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 <[email protected]>
|
@rmacklem Unfortunately some of the CI tests are not very stable lately. It can be unrelated. |
amotin
approved these changes
Nov 23, 2023
There was a problem hiding this comment.
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
added
Status: Accepted
tonyhutter
pushed a commit
that referenced
this pull request
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 <[email protected]> Signed-off-by: Rick Macklem <[email protected]> Closes #15563
lundman
pushed a commit
to openzfsonwindows/openzfs
that referenced
this pull request
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 <[email protected]> Signed-off-by: Rick Macklem <[email protected]> Closes openzfs#15563
gamanakis
pushed a commit
to gamanakis/zfs
that referenced
this pull request
Jan 19, 2024
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 <[email protected]> Signed-off-by: Rick Macklem <[email protected]> Closes openzfs#15563
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
Add this suggestion to a batch that can be applied as a single commit.
This suggestion is invalid because no changes were made to the code.
Suggestions cannot be applied while the pull request is closed.
Suggestions cannot be applied while viewing a subset of changes.
Only one suggestion per line can be applied in a batch.
Add this suggestion to a batch that can be applied as a single commit.
Applying suggestions on deleted lines is not supported.
You must change the existing code in this line in order to create a valid suggestion.
Outdated suggestions cannot be applied.
This suggestion has been applied or marked resolved.
Suggestions cannot be applied from pending reviews.
Suggestions cannot be applied on multi-line comments.
Suggestions cannot be applied while the pull request is queued to merge.
Suggestion cannot be applied right now. Please check back later.
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 [email protected]
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.