[parted-devel] [BUG] failing ioctl when informing the kernel about new partitions

[Petr Uzel]

On Thu, Jan 15, 2009 at 03:23:16PM +0000, Bryn M. Reeves wrote:
> Petr Uzel wrote:
> > But isn't BKLPG interface superior to BLKRRPART in the fact that the
> > kernel doesn't need to have support for particular type of disk label
> > compiled in? If this is true, then it might be worth trying to extend
> > BLKPG interface to support this kind of overlapping partitions instead
> > of reverting back to BLKRRPART. What do you think?
> 
> To come back to this specific point: I considered this some time ago 
> but didn't follow up on it as it seemed there were some difficult 
> problems.
> 
> We could just relax all the constraints on BLKPG and let userspace do 
> whatever it wants, but that seems like it creates potential for a 
> misbehaving userspace tool to cause serious chaos.
> 
> An alternative is to extend the interface to allow extra annotation 
> (e.g. to some how express that two partitions have a relationship such 
> as exists with DOS MBRs and extended/logical partitions).

Something similar came to my mind - extend the interface with some flag
saying "this is an extended partition and if that overlaps with
something behind it, it is OK". Shouldn't be difficult.

-- 
Best regards / s pozdravem

Petr Uzel, Packages maintainer
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