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Date: Thu, 08 Dec 2011 09:22:12 -0500
From: Phillip Susi <psusi@cfl.rr.com>
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To: Karel Zak <kzak@redhat.com>
CC: linux-kernel@vger.kernel.org, Vivek Goyal <vgoyal@redhat.com>,
        Jens Axboe <jaxboe@fusionio.com>
Subject: Re: [PATCH 1/2] Add partition resize function to BLKPG ioctl
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On 12/8/2011 7:30 AM, Karel Zak wrote:
>   It seems very close to Vivek's BLKPG_EXTEND_PARTITION idea, see:
>
>      https://lkml.org/lkml/2011/9/1/351
>
>   It's evident that we (userspace) need something better than
>   BLKPG_{ADD,DEL}_* and BLKRRPART, but no response from kernel side :-(

Yes, this looks very similar to mine, except that I also wanted to allow 
shrinking the partition, not just extending, since btrfs can handle this 
( tested ).