Re: [PATCH 0/2] bdev: Refresh bdev size for disks without partitioning

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On Sun 03-11-19 07:53:10, Jens Axboe wrote:
> On 10/21/19 2:37 AM, Jan Kara wrote:
> > Hello,
> > 
> > I've been debugging for quite a long time strange issues with encrypted DVDs
> > not being readable on Linux (bko#194965). In the end I've tracked down the
> > problem to the fact that block device size is not updated when the media is
> > inserted in case the DVD device is already open. This is IMO a bug in block
> > device code as the size gets properly update in case the device has partition
> > scanning enabled.  The following series fixes the problem by refreshing disk
> > size on each open even for devices with partition scanning disabled.
> 
> It's really confusing to have different behavior for partition vs whole device.
> This series looks good to me, the size change code is really hard to follow.
> 
> I don't see any serious objections here, I'm going to queue this up for
> 5.4.

Thanks Jens! I'll look into refactoring the size change / revalidation code
so that it's easier to understand what's going on...

								Honza
-- 
Jan Kara <jack@xxxxxxxx>
SUSE Labs, CR



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