Re: [PATCH v8 08/17] ext4: Report case sensitivity in fileattr_get

[PATCH v8 00/17] Subject: Exposing case folding behavior · Chuck Lever <cel@kernel.org> · 2026-02-17
[PATCH v8 01/17] fs: Move file_kattr initialization to callers · Chuck Lever <cel@kernel.org> · 2026-02-17
Re: [PATCH v8 01/17] fs: Move file_kattr initialization to callers · Jan Kara <jack@suse.cz> · 2026-02-27
[PATCH v8 02/17] fs: Add case sensitivity flags to file_kattr · Chuck Lever <cel@kernel.org> · 2026-02-17
Re: [PATCH v8 02/17] fs: Add case sensitivity flags to file_kattr · Jan Kara <jack@suse.cz> · 2026-02-27
[PATCH v8 03/17] fat: Implement fileattr_get for case sensitivity · Chuck Lever <cel@kernel.org> · 2026-02-17
Re: [PATCH v8 03/17] fat: Implement fileattr_get for case sensitivity · Jan Kara <jack@suse.cz> · 2026-02-27
[PATCH v8 04/17] exfat: Implement fileattr_get for case sensitivity · Chuck Lever <cel@kernel.org> · 2026-02-17
[PATCH v8 05/17] ntfs3: Implement fileattr_get for case sensitivity · Chuck Lever <cel@kernel.org> · 2026-02-17
[PATCH v8 06/17] hfs: Implement fileattr_get for case sensitivity · Chuck Lever <cel@kernel.org> · 2026-02-17
[PATCH v8 07/17] hfsplus: Report case sensitivity in fileattr_get · Chuck Lever <cel@kernel.org> · 2026-02-17
[PATCH v8 08/17] ext4: Report case sensitivity in fileattr_get · Chuck Lever <cel@kernel.org> · 2026-02-17
Re: [PATCH v8 08/17] ext4: Report case sensitivity in fileattr_get · "Theodore Tso" <tytso@mit.edu> · 2026-02-19
[PATCH v8 09/17] xfs: Report case sensitivity in fileattr_get · Chuck Lever <cel@kernel.org> · 2026-02-17
[PATCH v8 10/17] cifs: Implement fileattr_get for case sensitivity · Chuck Lever <cel@kernel.org> · 2026-02-17
[PATCH v8 11/17] nfs: Implement fileattr_get for case sensitivity · Chuck Lever <cel@kernel.org> · 2026-02-17
[PATCH v8 12/17] f2fs: Add case sensitivity reporting to fileattr_get · Chuck Lever <cel@kernel.org> · 2026-02-17
[PATCH v8 13/17] vboxsf: Implement fileattr_get for case sensitivity · Chuck Lever <cel@kernel.org> · 2026-02-17
[PATCH v8 14/17] isofs: Implement fileattr_get for case sensitivity · Chuck Lever <cel@kernel.org> · 2026-02-17
[PATCH v8 15/17] nfsd: Report export case-folding via NFSv3 PATHCONF · Chuck Lever <cel@kernel.org> · 2026-02-17
[PATCH v8 16/17] nfsd: Implement NFSv4 FATTR4_CASE_INSENSITIVE and FATTR4_CASE_PRESERVING · Chuck Lever <cel@kernel.org> · 2026-02-17
[PATCH v8 17/17] ksmbd: Report filesystem case sensitivity via FS_ATTRIBUTE_INFORMATION · Chuck Lever <cel@kernel.org> · 2026-02-17

From: "Theodore Tso" <tytso@mit.edu>
Date: 2026-02-19 13:16:18
Also in: linux-cifs, linux-ext4, linux-f2fs-devel, linux-fsdevel, linux-nfs, linux-xfs

On Tue, Feb 17, 2026 at 04:47:32PM -0500, Chuck Lever wrote:

From: Chuck Lever <chuck.lever@oracle.com>

Report ext4's case sensitivity behavior via the FS_XFLAG_CASEFOLD
flag. ext4 always preserves case at rest.

Case sensitivity is a per-directory setting in ext4. If the queried
inode is a casefolded directory, report case-insensitive; otherwise
report case-sensitive (standard POSIX behavior).

Reviewed-by: Jan Kara <jack@suse.cz>
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>

Acked-by: Theodore Ts'o <tytso@mit.edu>

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