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Re: [Xen-devel] [PATCH 1/2] driver: xen-blkfront: move talk_to_blkback to the correct place

El 15/05/15 a les 13.35, Bob Liu ha escrit:
> On 05/15/2015 07:14 PM, Roger Pau Monnà wrote:
>> El 15/05/15 a les 13.03, Bob Liu ha escrit:
>>> On 05/15/2015 06:01 PM, Roger Pau Monnà wrote:
>>>> El 12/05/15 a les 13.01, Bob Liu ha escrit:
>>>>> The right place for talk_to_blkback() to query backend features and 
>>>>> transport
>>>>> parameters is after backend entered XenbusStateInitWait. There is no 
>>>>> problem
>>>> talk_to_blkback doesn't gather any backend features, it just publishes
>>>> the features supported by the frontend, which AFAICT can be done at any
>>> 1) But talk_tlkback will also allocate and initialize the request ring which
>>> should be done after backend entered XenbusStateInitWait.
>> Maybe setup_blkring should be moved to a more suitable location instead
>> of moving the whole function?
> Most of other parts in talk_to_blkback() depends on setup_blkring() like write
> out ring-ref and event-channel.

My bad. Yes, I see that talk_to_blkback writes the ring info stuff, so
yes, moving it as a whole to a more suitable place seems OK to me, but
please re-write the commit message to be more clear.


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