Files
linux/include/uapi/linux
Chuck Lever 3035e44541 fs: Add case sensitivity flags to file_kattr
Enable upper layers such as NFSD to retrieve case sensitivity
information from file systems by adding FS_XFLAG_CASEFOLD and
FS_XFLAG_CASENONPRESERVING flags.

Filesystems report case-insensitive or case-nonpreserving behavior
by setting these flags directly in fa->fsx_xflags. The default
(flags unset) indicates POSIX semantics: case-sensitive and
case-preserving. Both flags are added to FS_XFLAG_RDONLY_MASK so
FS_IOC_FSSETXATTR silently strips them, keeping the new xflags
strictly a reporting interface. Callers that want to toggle
casefolding continue to use FS_IOC_SETFLAGS with FS_CASEFOLD_FL,
the established UAPI on filesystems that support the operation
(ext4 and f2fs on empty directories).

Case sensitivity information is exported to userspace via the
fa_xflags field in the FS_IOC_FSGETXATTR ioctl and file_getattr()
system call.

Reviewed-by: "Darrick J. Wong" <djwong@kernel.org>
Reviewed-by: Jan Kara <jack@suse.cz>
Reviewed-by: Roland Mainz <roland.mainz@nrubsig.org>
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Link: https://patch.msgid.link/20260507-case-sensitivity-v14-2-e62cc8200435@oracle.com
Signed-off-by: Christian Brauner <brauner@kernel.org>
2026-05-11 16:50:27 +02:00
..
2024-04-15 13:42:38 +02:00
2026-03-30 16:55:36 +02:00
2026-03-05 22:16:08 -05:00
2026-03-19 11:38:24 -06:00
2026-03-18 09:59:57 +00:00
2025-02-05 13:22:04 +09:00
2024-06-11 12:57:49 -05:00
2026-03-05 16:26:52 +01:00
2026-01-18 11:22:53 -05:00
2025-02-12 02:29:30 +00:00
2025-10-28 22:59:19 +01:00
2025-11-25 19:20:42 -08:00
2025-09-05 09:11:28 +02:00
2025-05-03 12:02:09 +02:00
2025-11-24 17:52:11 +01:00
2025-11-24 17:52:11 +01:00
2024-05-07 01:35:57 +02:00
2025-11-29 21:39:58 +09:00
2025-12-23 12:29:14 +05:30
2024-04-01 10:49:28 +01:00
2025-09-15 14:32:54 +02:00
2024-06-01 07:28:21 +02:00
2024-09-01 20:26:05 -07:00
2024-08-19 22:36:26 -04:00
2026-01-12 16:52:09 +01:00
2025-07-08 12:39:24 +02:00
2026-03-12 13:33:54 +01:00
2026-02-06 20:35:06 -08:00
2024-09-06 08:31:40 -06:00
2026-04-09 18:21:45 -07:00
2024-08-12 17:50:34 -07:00
2026-02-27 19:21:56 -08:00
2025-11-03 17:41:18 +01:00
2025-01-08 13:18:11 +01:00
2025-11-25 19:20:42 -08:00
2025-02-25 18:14:03 -08:00
2026-03-31 07:04:00 -06:00
2026-01-26 19:07:10 -08:00
2025-07-14 18:41:42 -07:00
2025-06-19 14:28:22 +02:00
2025-05-21 13:41:03 +02:00
2026-02-09 12:21:32 -05:00
2025-09-22 09:29:28 +01:00
2025-11-30 18:02:43 -05:00
2025-05-27 10:27:54 -04:00
2025-09-22 09:29:29 +01:00