Re: [NFS] [GIT] NFS client update for 2.6.16

[Chuck Lever <cel@citi.umich.edu>]

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Christoph Hellwig wrote:
>>commit 47989d7454398827500d0e73766270986a3b488f
>>Author: Chuck Lever <cel@netapp.com>
>>Date:   Mon Mar 20 13:44:32 2006 -0500
>>
>>    NFS: remove support for multi-segment iovs in the direct write path
>>    
>>    Eliminate the persistent use of automatic storage in all parts of the
>>    NFS client's direct write path to pave the way for introducing support
>>    for aio against files opened with the O_DIRECT flag.
> 
> 
> NACK.  We have patches pending that consolidate ->aio_read/write and
> ->read/writev into one operation.  this change is completely counterproductive
> towards that goal which has been discussed on -fsdevel for a while.

and when do you expect these changes to be integrated?  we've had this 
implementation for almost a year, and zach brown has reviewed it.  we 
discussed the aio_read/readv change with him and he agreed that this 
should go in now.

we have major customers who are demanding this functionality now, and 
can support the reimplementation whenever you guys get your aio act 
together.

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