Re: [Lsf-pc] [LSF/MM TOPIC] Unifying the LIO and SCST target drivers

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On 02/21/15 01:00, Nicholas A. Bellinger wrote:
> On Fri, 2015-02-20 at 11:49 +0100, Bart Van Assche wrote:
>> What I proposed myself consists of three steps:
>> 1. Updating the LIO SRP target driver to a more recent version.
>> 2. Target driver and LIO core refactoring such that the LIO and
>>    SCST APIs can be unified.
>> 3. Adding support in SCST for the unified target driver API.
>>
>> This work is taking a little more time than I had expected - I still
>> have to start with step (3). But I can already show in which direction I
>> would like to go for steps (1) and (2). The 43 patches I came up with so
>> far for steps (1) and (2) are available in the lio branch of the
>> https://github.com/bvanassche/linux git repository. As you can see in
>> that repository 42 of these 43 patches make sense even without knowing
>> that something like SCST exists.
> 
> Please go ahead and post the series for review with bug fixes at the
> head of the series, with future improvements following after the fixes.
> 
> Doing a brief review from your tree, I can see there are some useful
> fixes, but also there are some patches that have incorrect assumptions
> and/or break the existing userspace APIs.
> 
> That said, I'm happy to review the full series, and very much appreciate
> your efforts to improve upstream code.
> 
> However, keep in mind that I'll not be merging anything for target-core
> that adds support for out-of-tree code, nor anything that changes
> existing target configfs APIs to fit out-of-tree code requirements.

Let's start with what we agree on and discuss the other topics during
the LSF/MM summit. I just sent one patch of that series to the
linux-scsi mailing list for review.

Bart.

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