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Commit 329e2ffa4bca456e65c3db7f5c5c04931c551b61 has made mount.zfs(8) to call libzfs function 'zfs_mount_at', in order to propagate dataset properties into mount options. This fix however, is limited to a special use case where mount.zfs(8) is used in initrd with option '-o zfsutil'. If either initrd or the user need to use mount.zfs(8) to mount a file system with 'mountpoint' set to 'legacy', '-o zfsutil' can't be used and the original issue #7947 will still happen. Since the existing code already excluded the possibility of calling 'zfs_mount_at' when it was invoked as a helper program from zfs(8), by checking 'ZFS_MOUNT_HELPER' environment variable, it makes no sense to avoid calling 'zfs_mount_at' without '-o zfsutil'. An exception however, is when mount.zfs(8) was invoked with '-o remount' to update the mount options for an existing mount point. In this case call mount(2) directly without modifying the mount options passed from command line. Furthermore, don't run mount.zfs(8) helper for automounting snapshot. The above change to make mount.zfs(8) to call 'zfs_mount_at' apparently caused it to trigger an automount for the snapshot directory. When the helper was invoked as a result of a snapshot automount, an infinite recursion will occur. Since the need of invoking user mode mount(8) for automounting was to overcome that the 'vfs_kern_mount' being GPL-only, just run mount(8) without the mount.zfs(8) helper by adding option '-i'. Reviewed-by: Umer Saleem <usaleem@ixsystems.com> Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov> Signed-off-by: WHR <whr@rivoreo.one> Closes #16393 |
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OpenZFS is an advanced file system and volume manager which was originally developed for Solaris and is now maintained by the OpenZFS community. This repository contains the code for running OpenZFS on Linux and FreeBSD.
Official Resources
- Documentation - for using and developing this repo
- ZoL Site - Linux release info & links
- Mailing lists
- OpenZFS site - for conference videos and info on other platforms (illumos, OSX, Windows, etc)
Installation
Full documentation for installing OpenZFS on your favorite operating system can be found at the Getting Started Page.
Contribute & Develop
We have a separate document with contribution guidelines.
We have a Code of Conduct.
Release
OpenZFS is released under a CDDL license.
For more details see the NOTICE, LICENSE and COPYRIGHT files; UCRL-CODE-235197
Supported Kernels
- The
METAfile contains the officially recognized supported Linux kernel versions. - Supported FreeBSD versions are any supported branches and releases starting from 13.0-RELEASE.