Re: [PATCH v8 0/13] fstests: add test coverage for cloned filesystem ids

[Anand Suveer Jain <asj@kernel.org>]

Zorro, Ping?

Cheers, Anand

On 25/7/26 15:38, Anand Jain wrote:
> v8:
> - _require_fs_space: double the required space (x2) to account for both source and clone
> - Use proper quoting/unquoting for _mkfs_dev (Thanks Darrick)
> - Call _fail() if cp fails
> - _require_fanotify_function: check for kernel fsnotify support
> - _require_unique_f_fsid: reorganize comments and replace 'if' with 'case' statement (Thanks Darrick)
> - Add SEMANAGE_PROG variable (Thanks Darrick)
> - fanotify verification: add checks for SEMANAGE_PROG and _require_fanotify_function
> - Verify that the monitoring process is actually created
> 
> v7:
>   https://lore.kernel.org/fstests/cover.1781694879.git.asj@kernel.org
> 
> v6:
>   https://lore.kernel.org/fstests/cover.1779939330.git.asj@kernel.org
> 
> v5:
>   https://lore.kernel.org/fstests/cover.1779367627.git.asj@kernel.org
> 
> v4:
>   https://lore.kernel.org/fstests/cover.1777357320.git.asj@kernel.org
> 
> v3:
>   https://lore.kernel.org/fstests/cover.1777281778.git.asj@kernel.org
> 
> v2:
>   https://lore.kernel.org/fstests/cover.1774090817.git.asj@kernel.org
> 
> v1:
>   https://lore.kernel.org/fstests/cover.1772095513.git.asj@kernel.org
> 
> This series adds fstests infrastructure and test cases to verify correct
> filesystem identity when a filesystem is cloned (block-level copy).
> Test covers inotify, fanotify, f_fsid, libblkid, IMA, exportfs file handles
> and libblkid tools verify with metadata_uuid.
>   New helpers:
>    _loop_image_create_clone() and _loop_image_destroy() to help create fs and clone
>    _clone_mount_option() helper to apply per-filesystem clone mount options
>    _require_fanotify_function check if kernel supports fs notification
>    _require_unique_f_fsid() helper to handle fs difference in fsid implementation
> 
>   New tests:
>   - fanotify events are isolated between cloned filesystems
>   - f_fsid is unique across cloned filesystem instances
>   - libblkid correctly resolves duplicate UUIDs to distinct devices
>     with and without metadata_uuid
>   - IMA distinct identity for each cloned filesystem
>   - exportfs file handles resolve correctly on cloned filesystems
> 
> Kernel Patches:
>   Requires Btrfs kernel patches for all tests to pass.
>    [1] https://lore.kernel.org/linux-btrfs/cover.1777281686.git.asj@kernel.org
> 
> 
> Anand Jain (13):
>   fstests: add _loop_image_create_clone() helper
>   fstests: add _clone_mount_option() helper
>   fstests: add FSNOTIFYWAIT_PROG
>   fstests: add _require_fanotify_function
>   fstests: add _require_unique_f_fsid() helper
>   fstests: add SEMANAGE_PROG
>   fstests: verify fanotify isolation on cloned filesystems
>   fstests: verify f_fsid for cloned filesystems
>   fstests: verify libblkid resolution of duplicate UUIDs
>   fstests: verify IMA isolation on cloned filesystems
>   fstests: verify exportfs file handles on cloned filesystems
>   fstests: add _change_metadata_uuid helper
>   fstests: test UUID consistency for clones with metadata_uuid
> 
>  common/config         |   2 +
>  common/rc             | 135 +++++++++++++++++++++++++++++++++++++++
>  tests/generic/801     | 143 ++++++++++++++++++++++++++++++++++++++++++
>  tests/generic/801.out |   7 +++
>  tests/generic/802     |  64 +++++++++++++++++++
>  tests/generic/802.out |   4 ++
>  tests/generic/803     |  72 +++++++++++++++++++++
>  tests/generic/803.out |   6 ++
>  tests/generic/804     | 108 +++++++++++++++++++++++++++++++
>  tests/generic/804.out |  10 +++
>  tests/generic/805     |  80 +++++++++++++++++++++++
>  tests/generic/805.out |   2 +
>  tests/generic/806     |  74 ++++++++++++++++++++++
>  tests/generic/806.out |   6 ++
>  14 files changed, 713 insertions(+)
>  create mode 100644 tests/generic/801
>  create mode 100644 tests/generic/801.out
>  create mode 100644 tests/generic/802
>  create mode 100644 tests/generic/802.out
>  create mode 100644 tests/generic/803
>  create mode 100644 tests/generic/803.out
>  create mode 100644 tests/generic/804
>  create mode 100644 tests/generic/804.out
>  create mode 100644 tests/generic/805
>  create mode 100644 tests/generic/805.out
>  create mode 100644 tests/generic/806
>  create mode 100644 tests/generic/806.out
>