Bug#504391: [PATCH] mmc: add module parameter to set whether cards are assumed removable

[Alan Cox <alan@lxorguk.ukuu.org.uk>]

> Before we do suspend, pick few random sectors from the media, run that
> through some hash function, thus creating some sort of watermark.

Statistically speaking the chances are you'll catch zero sectors and
lose. You'll also not detect the suspend, move to other box, use, put
back error. That is one users make and we need to be at least vaguely
robust against.

Hence you need the fs checking here.

Alan