On 11/25/2010 12:47 AM, Andrew Morton wrote:
> On Tue, 23 Nov 2010 07:34:07 -0500
> Chris Mason <chris.ma...@oracle.com> wrote:
> 
>> For btrfs there's only one bdi per SB, but for most everyone else a disk
>> with a bunch of partitions is going to have multiple filesystems on the
>> same bdi.
> 
> um, please explain why that wasn't idiotic?  The BDI is a
> representation of a backing device and it's *supposed* to provide
> visibility into what's happening against other partitions on the same
> device.  Creating a BDI per SB (it didn't even occur to me to think
> that a filesystem was even able to do this) breaks that.
> 

In btrfs an SB my span multiple partitions. How else can it be solved?

(I know... You didn't like that from the begging ;-))

Boaz
> 
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