On linux-next systemd-remount-fs complains about an invalid mount option
here, resulting in a r/o root fs. After playing with the mount options
it turned out that data=ordered causes the problem. linux-next from Dec
1st was ok, so it seems to be related to the new mount API patches.
At a first glance I saw no obvious problem, the following looks good.
Maybe you have an idea where to look ..
static const struct constant_table ext4_param_data[] = {
{"journal", EXT4_MOUNT_JOURNAL_DATA},
{"ordered", EXT4_MOUNT_ORDERED_DATA},
{"writeback", EXT4_MOUNT_WRITEBACK_DATA},
{}
};
fsparam_enum ("data", Opt_data, ext4_param_data),
