Re: fs-independent quotas

[Martin Husemann <martin%duskware.de@localhost>]

On Thu, Nov 17, 2011 at 05:10:24PM +0100, Manuel Bouyer wrote:
> With the old quotactl, the kernel has no way to tell if it really got a
> string of a struct dqblk (or something else); it can just interpret the
> pointer as a string and see if it works. If instead of a string it got
> a dqblk whose first 2 entries happends to be 0x6f6f622f 0x78300074,
> you'll have troubles (you're doing quotaon on /boot).

Yes, the old quotactl interface sucked.
Moving the command ID into the argument structure fixes it, and allows easy
versioning as well - just as a simple example for alternatives to proplib.

Martin