Re: [PATCH v9 00/17] Exposing case folding behavior

Christian Brauner
2026-04-23T11:53:22Z

On Wed, 22 Apr 2026 19:29:54 -0400, Chuck Lever wrote:
> Following on from
>
> https://lore.kernel.org/linux-nfs/20251021-zypressen-bazillus-545a44af57fd@brauner/T/#m0ba197d75b7921d994cf284f3cef3a62abb11aaa
>
> I'm attempting to implement enough support in the Linux VFS to
> enable file services like NFSD and ksmbd (and user space
> equivalents) to provide the actual status of case folding support
> in local file systems. The default behavior for local file systems
> not explicitly supported in this series is to reflect the usual
> POSIX behaviors:
>
> [...]

Applied to the vfs-7.2.casefold branch of the vfs/vfs.git tree.
Patches in the vfs-7.2.casefold branch should appear in linux-next soon.

Please report any outstanding bugs that were missed during review in a
new review to the original patch series allowing us to drop it.

It's encouraged to provide Acked-bys and Reviewed-bys even though the
patch has now been applied. If possible patch trailers will be updated.

Note that commit hashes shown below are subject to change due to rebase,
trailer updates or similar. If in doubt, please check the listed branch.

tree: https://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs.git
branch: master

[01/17] fs: Move file_kattr initialization to callers
https://git.kernel.org/vfs/vfs/c/a46401c7dc2f
[02/17] fs: Add case sensitivity flags to file_kattr
https://git.kernel.org/vfs/vfs/c/1dd697879cf2
[03/17] fat: Implement fileattr_get for case sensitivity
https://git.kernel.org/vfs/vfs/c/2b124bb86cdb
[04/17] exfat: Implement fileattr_get for case sensitivity
https://git.kernel.org/vfs/vfs/c/9b8b66549c8e
[05/17] ntfs3: Implement fileattr_get for case sensitivity
https://git.kernel.org/vfs/vfs/c/7d0fbb53b0c2
[06/17] hfs: Implement fileattr_get for case sensitivity
https://git.kernel.org/vfs/vfs/c/024b4a69abaf
[07/17] hfsplus: Report case sensitivity in fileattr_get
https://git.kernel.org/vfs/vfs/c/22a319bfe8b8
[08/17] ext4: Report case sensitivity in fileattr_get
https://git.kernel.org/vfs/vfs/c/75fd84cb0922
[09/17] xfs: Report case sensitivity in fileattr_get
https://git.kernel.org/vfs/vfs/c/29323822bece
[10/17] cifs: Implement fileattr_get for case sensitivity
https://git.kernel.org/vfs/vfs/c/4444c82e69a6
[11/17] nfs: Implement fileattr_get for case sensitivity
https://git.kernel.org/vfs/vfs/c/6f3f50885bd9
[12/17] f2fs: Add case sensitivity reporting to fileattr_get
https://git.kernel.org/vfs/vfs/c/e8d671306a8f
[13/17] vboxsf: Implement fileattr_get for case sensitivity
https://git.kernel.org/vfs/vfs/c/f5e334b94179
[14/17] isofs: Implement fileattr_get for case sensitivity
https://git.kernel.org/vfs/vfs/c/764609f76826
[15/17] nfsd: Report export case-folding via NFSv3 PATHCONF
https://git.kernel.org/vfs/vfs/c/06726ac88bb5
[16/17] nfsd: Implement NFSv4 FATTR4_CASE_INSENSITIVE and FATTR4_CASE_PRESERVING
https://git.kernel.org/vfs/vfs/c/d129f0419eb3
[17/17] ksmbd: Report filesystem case sensitivity via FS_ATTRIBUTE_INFORMATION