[parted-devel] Resize removal

[Petr Uzel]

On Tue, Nov 29, 2011 at 04:09:56PM -0500, Phillip Susi wrote:
> On 11/29/2011 11:02 AM, Petr Uzel wrote:
> >I was also thinking about some new BLKPG-like ioctl()s. Could you
> >please elaborate more on your new ioctl() proposal? Perhaps we could
> >combine the ideas...
> 
> I just added one to update the length of the partition.  Attaching the patch so far ( untested ).
> 
> >Features of the new ioctl()/s I was thinking about are:
> >- get largest number of partition known to the kernel
> >- atomically add/remove more than one partition
> 
> What benefit would those provide?

1/ largest partition: to stop messing with range, ext_range,
ped_disk_get_max_supported_partition_count() etc. if the only thing we
need to do is to BLKPG_DEL_PARTITION all partitions known to the
kernel

2/ add/remove multiple partitions: I didn't think about this too much
yet, but I think that with clever design, this could help with timing
issues we saw in disk_sync_part_table.