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  1. Bug #1667078
  2. Comment #7

Comment 7 for bug 1667078

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Ryan Harper (raharper) wrote : Re: [Bug 1667078] Re: bcache device numbers increase by 16

On Thu, Mar 2, 2017 at 4:56 AM, Stefan Bader <email address hidden>
wrote:

> I created a modified patch and verified that
> - bcache base devices again are numbered 0,1,...
> - partioning a bcache device creates the expected bcacheXpY devices
> Will submit this change upstream (and for pre-stable zesty).
>
> ** Patch added: "0001-bcache-Fix-bcache-device-names.patch"
> https://bugs.launchpad.net/ubuntu/+source/linux/+bug/
> 1667078/+attachment/4829714/+files/0001-bcache-Fix-bcache-
> device-names.patch
>
>
If possible, it would be good to avoid the div; that's why I had used a
shift.

In other drivers, they define a PART_BITS 4 or so
and use that to shift up or down to get index vs. minor.

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> https://bugs.launchpad.net/bugs/1667078
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> Title:
> bcache device numbers increase by 16
>
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