is mount /var/something -o remount -f dangerous ?

[Thedore Knab <tjk@annapolislinux.org>]

I hate to be a nervous nut but,

Is it dangerous to remount a drive using this command on a ext3
filesystem ?

    mount /var/mail -o remount -f

    If it is dangerous, what can I do to fix it ?

Here is what I did:

I shutdown all the processes.
    postfix
    imap
    cron
    atd

Then I changed my /etc/fstab from data=journal to data=writeback.

Then I remounted using.

mount /var/mail -o remount -f

I then restarted the processes associated.