Re: [PATCH 2/3] NFSv4.1 mark layout when already returned

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On Jun 11, 2012, at 10:51 AM, Boaz Harrosh wrote:

> On 06/11/2012 05:21 PM, Adamson, Andy wrote:
> 
>> 
>> On Jun 11, 2012, at 10:04 AM, Benny Halevy wrote:
>> 
>>> On 2012-06-11 13:44, Boaz Harrosh wrote:
>>>> Basically my plan is to postpone the LAYOUTRETURN send to
>>>> when the segment is last referenced, if a flag was set to
>>>> do so, and make sure reference counting is done proper, so
>>>> after flag set the last IO_done will send the LAYOUTRETURN.
>>>> 
>>>> If that is OK with all I hope?
>>> 
>>> Sounds OK to me.  Thanks!
>> 
>> Sounds fine to me as well, for LAYOUTRETURN during normal behavior.
>> 
>> -->Andy
> 
> 
> I'm not sure I understood what you meant.
> 
> In the "normal behavior" we don't send a LAYOUTRETURN at all
> in the forgetful model. Which proved beneficiary in the light
> of concurrent GETs vs RETURNs.
> 
> I thought we are only taking about the error case. Do you
> mean there is a 3rd case? please explain.


The normal case of calling LAYOUTRETURN on evict inode. 

-->Andy

> 
> Thanks
> Boaz

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