Re: [dm-devel] [PATCH v5] dm mpath: avoid call to blk_abort_queue by default

[Alasdair G Kergon <agk redhat com>]

On Thu, Nov 18, 2010 at 03:07:33PM -0500, Mike Snitzer wrote:
> It is expected that this race will be fixed in the near-term so it makes
> little since to remove all associated code.  Providing control over the
> call to blk_abort_queue() facilitates continued testing and future
> flexibility to opt-in to lower latency path deactivation.  Opting to
> enable this feature will emit a warning for the time being.
 
Ah, but then the *feature* keyword - which is only going to be needed
temporarily until it's fixed - becomes a permanent part of the interface...

If it's broken, let's just disable it (#define-style) until it gets fixed.
(And only if it doesn't get fixed in a reasonable amount of time, remove the
code.)

Alasdair