+.BR MS_NODIRATIME .
+.IP *
+Since Linux 2.6.20:
+.BR MS_RELATIME .
+.PP
+The following flags are per-superblock:
+.BR MS_DIRSYNC ,
+.BR MS_LAZYTIME ,
+.BR MS_MANDLOCK ,
+.BR MS_MS_SILENT ,
+and
+.BR MS_SYNCHRONOUS .
+.\" And MS_I_VERSION?
+The initial settings of these flags are determined on the first
+mount of the filesystem, and will be shared by all subsequent mounts
+of the same filesystem.
+Subsequently, the settings of the flags can be changed
+via a remount operation (see below).
+Such changes will be visible via all mount points associated
+with the filesystem.
+.PP
+Since Linux 2.6.16,
+.B MS_RDONLY
+can be set or cleared on a per-mount-point basis as well as on
+the underlying filesystem superblock.
+The mounted filesystem will be writable only if neither the filesystem
+nor the mountpoint are flagged as read-only.