Attributes in this class are used to implement mechanisms in user
space (i.e., outside the kernel) which keep information in extended attributes
to which ordinary processes should not have access.
-.SS Extended user attributes
-Extended user attributes may be assigned to files and directories for
+.SS User extended attributes
+User extended attributes may be assigned to files and directories for
storing arbitrary additional information such as the mime type,
character set or encoding of a file.
The access permissions for user
special files and directories.
.PP
For this reason,
-extended user attributes are allowed only for regular files and directories,
-and access to extended user attributes is restricted to the
+user extended attributes are allowed only for regular files and directories,
+and access to user extended attributes is restricted to the
owner and to users with appropriate capabilities for directories with the
sticky bit set (see the
.BR chmod (1)
Some filesystems, such as Reiserfs (and, historically, ext2 and ext3),
require the filesystem to be mounted with the
.B user_xattr
-mount option in order for extended user attributes to be used.
+mount option in order for user extended attributes to be used.
.PP
In the current ext2, ext3, and ext4 filesystem implementations,
the total bytes used by the names and values of all of a file's