summaryrefslogtreecommitdiff
path: root/include
diff options
context:
space:
mode:
authorChristian Brauner <brauner@kernel.org>2026-05-15 18:49:29 +0300
committerChristian Brauner <brauner@kernel.org>2026-05-15 18:49:29 +0300
commitea3120fd5153c967efb20e6e3330caecbf9d8b0a (patch)
tree98200b2d40940058a6ef08e07c01a49ecc90cb93 /include
parent1633e6ea1a2188d976f1b38dd65deaf743eb47cc (diff)
parentcfff672ffcf9a74b560c2002739729f91812e398 (diff)
downloadlinux-ea3120fd5153c967efb20e6e3330caecbf9d8b0a.tar.xz
Merge patch series "Casefold Fixes"
Bring in a bunch of fixes for the casefold work. * patches from https://patch.msgid.link/20260515153515.362266-1-cel@kernel.org: nfsd: Cap case-folding probe cost across READDIR entries nfsd: Map -ESTALE from case probe to NFS3ERR_STALE nfsd: Use kernel credentials for case-info probe fs: Clarify FS_CASEFOLD_FL semantics in UAPI header nfs: Skip pathconf probe when neither field is consumed nfs: Avoid transient zeroed case capability bits during probe tools headers UAPI: Sync case-sensitivity flags from linux/fs.h Link: https://patch.msgid.link/20260515153515.362266-1-cel@kernel.org Signed-off-by: Christian Brauner <brauner@kernel.org>
Diffstat (limited to 'include')
-rw-r--r--include/uapi/linux/fs.h11
1 files changed, 10 insertions, 1 deletions
diff --git a/include/uapi/linux/fs.h b/include/uapi/linux/fs.h
index 2ea4c81df08f..bd87262f2e34 100644
--- a/include/uapi/linux/fs.h
+++ b/include/uapi/linux/fs.h
@@ -395,7 +395,16 @@ struct file_attr {
#define FS_DAX_FL 0x02000000 /* Inode is DAX */
#define FS_INLINE_DATA_FL 0x10000000 /* Reserved for ext4 */
#define FS_PROJINHERIT_FL 0x20000000 /* Create with parents projid */
-#define FS_CASEFOLD_FL 0x40000000 /* Folder is case insensitive */
+/*
+ * FS_CASEFOLD_FL indicates case-insensitive name lookup. The
+ * bit is most often reported on directories, where it controls
+ * lookups of entries within. Filesystems that derive
+ * case-insensitivity from mount or volume state may also report
+ * it on non-directory inodes; userspace must not assume the bit
+ * is directory-only. FS_XFLAG_CASEFOLD reports the same
+ * information read-only via FS_IOC_FSGETXATTR.
+ */
+#define FS_CASEFOLD_FL 0x40000000
#define FS_RESERVED_FL 0x80000000 /* reserved for ext2 lib */
#define FS_FL_USER_VISIBLE 0x0003DFFF /* User visible flags */