From mboxrd@z Thu Jan  1 00:00:00 1970
Date: Thu, 28 Oct 2010 11:37:11 -0400
From: Nathaniel W Filardo <nwf@cs.jhu.edu>
To: Fans of the OS Plan 9 from Bell Labs <9fans@9fans.net>
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Subject: Re: [9fans] A little more ado about async Tclunk
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On Thu, Oct 28, 2010 at 04:56:02PM +0200, Francisco J Ballesteros wrote:
> Be there caches of not, I've found that I want to be able to say
> "I'm done with this file, let me know if everything is done and ok".

You can, just not by using Tclunk.

> Of course, if you use 9p with no cache, you know you're done if all writes
> worked.

Nowhere in the manual does it say that.  The only protocol-defined way to be
sure that you are coherent is to use Twstat with all arguments NOP.  (FWIW,
this may also be superior to checking that Tclunk did not Rerror because the
fid is still live if Twstat Rerrors.)

--nwf;

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