Re: [code] Unlimited partitions, a try

[H. Peter Anvin]

Jan Engelhardt wrote:
> On Oct 5 2007 15:11, H. Peter Anvin wrote:
> > Jan Engelhardt wrote:
> > > 15 partitions (at least for sd_mod devices) are too few.
> > Now when we have 20-bit minors, can't we simply recycle some of the 
> > higher bits for additional partitions, across the board?  63 
> > partitions seem to have been sufficient; at least I haven't heard 
> > anyone complain about that for 15 years.
>
> GPT allows up to 128 partitions, and the linux partition code currently 
> allows for up to MAX_PART (256). Assuming 1048576/128, that would give 
> 8192 disks. With dynamic minor allocation and reuse, all that goes away 
> and the limit becomes a bit less than 1048576 _partitions_.

Yes, but you're proposing something with substantially higher switch 
threshold...

	-hpa
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/