Re: [PATCH v3 42/49] nfs41: add range to layoutreturn args

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On 01/13/2015 02:42 PM, Tom Haynes wrote:
> On Tue, Jan 13, 2015 at 02:15:04PM -0500, Anna Schumaker wrote:
>> Hi Tao,
>>
>> On 01/06/2015 07:28 PM, Tom Haynes wrote:
>>> From: Peng Tao <tao.peng@xxxxxxxxxxxxxxx>
>>>
>>> -	lrp->args.iomode = iomode;
>>> +	lrp->args.range.iomode = iomode;
>>> +	lrp->args.range.offset = offset;
>>> +	lrp->args.range.length = length;
>>
>> Callers of pnfs_send_layoutreturn() are always passing offset = 0 and length = NFS4_MAX_UINT64.  Can we have pnfs_send_layoutreturn() always set these values, rather than passing them as function parameters?
>>
> 
> Hi Anna,
> 
> This is future-proofing - i.e., add the parameters such
> that when we allow only returning part of the file we
> already have the support in place.

I still think we should hold off until partial file returns are added, making it less likely that somebody will introduce a bug in the meantime.

Anna

> 
> Thanks,
> Tom
> 

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