Re: [PATCH 4/4] virtio_blk: use disk_name_format() to support mass of disks naming

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 On 04/04/2012 04:01 PM, Michael S. Tsirkin wrote:
On Mon, Apr 02, 2012 at 12:00:45PM -0700, Tejun Heo wrote:
On Mon, Apr 02, 2012 at 11:56:18AM -0700, James Bottomley wrote:
So if we're agreed no other devices going forwards should ever use this
interface, is there any point unifying the interface?  No matter how
many caveats you hedge it round with, putting the API in a central place
will be a bit like a honey trap for careless bears.   It might be safer
just to leave it buried in the three current drivers.
Yeah, that was my hope but I think it would be easier to enforce to
have a common function which is clearly marked legacy so that new
driver writers can go look for the naming code in the existing ones,
find out they're all using the same function which is marked legacy
and explains what to do for newer drivers.
I think I'm not the only one to be confused about the
preferred direction here.
James, do you agree to the approach above?

It would be nice to fix virtio block for 3.4, so
how about this:
- I'll just apply the original bugfix patch for 3.4 -
   it only affects virtio

Sorry, about only affects virtio, I'm not very clear here:
1) Just duplicate the disk name format function in virtio_blk
    like the original patch:
2) Move the disk name format function into block core like
    this patch series but only affects virtio(not affect mtip32xx).
Do you mean the 2) one or something else?

- Ren will repost the refactoring patch on top, and we can
   keep up the discussion

Ren if you agree, can you make this a two patch series please?



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