Re: [PATCH v2] README: add supported fs list

Zorro Lang
2025-04-12T06:26:25Z

On Sat, Mar 29, 2025 at 12:46:09AM +0800, Zorro Lang wrote:
> To clarify the supported filesystems by fstests, add a fs list to
> README file.
>
> Signed-off-by: Zorro Lang <zlang@kernel.org>
> Acked-by: "Darrick J. Wong" <djwong@kernel.org>
> ---
>
> The v1 patch and review points:
> https://lore.kernel.org/fstests/20250227200514.4085734-1-zlang@kernel.org/
>
> V2 did below things:
> 1) Fix some wrong english sentences
> 2) Explain the meaning of "+" and "-".
> 3) Add a link to btrfs comment.
> 4) Split ext2/3/4 to 3 lines.
> 5) Reorder the fs list by "Level".

Any more review points on this patch? If no more, I'll merge it as it got
an ACK at least. We still can update it later if anyone need.

Thanks,
Zorro

>
> Thanks,
> Zorro
>
> README | 90 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
> 1 file changed, 90 insertions(+)
>
> diff --git a/README b/README
> index 024d39531..5ceaa0c1e 100644
> --- a/README
> +++ b/README
> @@ -1,3 +1,93 @@
> +_______________________
> +SUPPORTED FS LIST
> +_______________________
> +
> +History
> +-------
> +
> +Firstly, xfstests is the old name of this project, due to it was originally
> +developed for testing the XFS file system on the SGI's Irix operating system.
> +When xfs was ported to Linux, so was xfstests, now it only supports Linux.
> +
> +As xfstests has many test cases that can be run on some other filesystems,
> +we call them "generic" (and "shared", but it has been removed) cases, you
> +can find them in tests/generic/ directory. Then more and more filesystems
> +started to use xfstests, and contribute patches. Today xfstests is used
> +as a file system regression test suite for lots of Linux's major file systems.
> +So it's not "xfs"tests only, we tend to call it "fstests" now.
> +
> +Supported fs
> +------------
> +
> +Firstly, there's not hard restriction about which filesystem can use fstests.
> +Any filesystem can give fstests a try.
> +
> +Although fstests supports many filesystems, they have different support level
> +by fstests. So mark it with 4 levels as below:
> +
> +L1: Fstests can be run on the specified fs basically.
> +L2: Rare support from the specified fs list to fix some generic test failures.
> +L3: Normal support from the specified fs list, has some own cases.
> +L4: Active support from the fs list, has lots of own cases.
> +
> +("+" means a slightly higher than the current level, but not reach to the next.
> +"-" is opposite, means a little bit lower than the current level.)
> +
> ++------------+-------+---------------------------------------------------------+
> +| Filesystem | Level | Comment |
> ++------------+-------+---------------------------------------------------------+
> +| XFS | L4+ | N/A |
> ++------------+-------+---------------------------------------------------------+
> +| Btrfs | L4 | https://btrfs.readthedocs.io/en/latest/dev/Development-\|
> +| | | notes.html#fstests-setup |
> ++------------+-------+---------------------------------------------------------+
> +| Ext4 | L4 | N/A |
> ++------------+-------+---------------------------------------------------------+
> +| Ext2 | L3 | N/A |
> ++------------+-------+---------------------------------------------------------+
> +| Ext3 | L3 | N/A |
> ++------------+-------+---------------------------------------------------------+
> +| overlay | L3 | N/A |
> ++------------+-------+---------------------------------------------------------+
> +| f2fs | L3- | N/A |
> ++------------+-------+---------------------------------------------------------+
> +| tmpfs | L3- | N/A |
> ++------------+-------+---------------------------------------------------------+
> +| NFS | L2+ | https://linux-nfs.org/wiki/index.php/Xfstests |
> ++------------+-------+---------------------------------------------------------+
> +| Ceph | L2 | N/A |
> ++------------+-------+---------------------------------------------------------+
> +| CIFS | L2- | https://wiki.samba.org/index.php/Xfstesting-cifs |
> ++------------+-------+---------------------------------------------------------+
> +| ocfs2 | L2- | N/A |
> ++------------+-------+---------------------------------------------------------+
> +| Bcachefs | L1+ | N/A |
> ++------------+-------+---------------------------------------------------------+
> +| Exfat | L1+ | N/A |
> ++------------+-------+---------------------------------------------------------+
> +| AFS | L1 | N/A |
> ++------------+-------+---------------------------------------------------------+
> +| FUSE | L1 | N/A |
> ++------------+-------+---------------------------------------------------------+
> +| GFS2 | L1 | N/A |
> ++------------+-------+---------------------------------------------------------+
> +| Glusterfs | L1 | N/A |
> ++------------+-------+---------------------------------------------------------+
> +| JFS | L1 | N/A |
> ++------------+-------+---------------------------------------------------------+
> +| pvfs2 | L1 | N/A |
> ++------------+-------+---------------------------------------------------------+
> +| Reiser4 | L1 | Reiserfs has been removed, only left reiser4 |
> ++------------+-------+---------------------------------------------------------+
> +| ubifs | L1 | N/A |
> ++------------+-------+---------------------------------------------------------+
> +| udf | L1 | N/A |
> ++------------+-------+---------------------------------------------------------+
> +| Virtiofs | L1 | N/A |
> ++------------+-------+---------------------------------------------------------+
> +| 9p | L1 | N/A |
> ++------------+-------+---------------------------------------------------------+
> +
> _______________________
> BUILDING THE FSQA SUITE
> _______________________
> --
> 2.47.1
>
>