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From: Nathaniel W Filardo <nwf@cs.jhu.edu>
To: Fans of the OS Plan 9 from Bell Labs <9fans@9fans.net>
Subject: Re: [9fans] A little more ado about async Tclunk
Date: Thu, 28 Oct 2010 11:37:11 -0400	[thread overview]
Message-ID: <20101028153711.GC5777@masters1.cs.jhu.edu> (raw)
In-Reply-To: <AANLkTikTbRwviRPBmpjfBRSD0Rs+egRUUaXk2ex7p_Db@mail.gmail.com>

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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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  reply	other threads:[~2010-10-28 15:37 UTC|newest]

Thread overview: 101+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2010-10-27  3:02 Venkatesh Srinivas
2010-10-27  4:23 ` erik quanstrom
2010-10-27  6:27   ` Bruce Ellis
2010-10-27 13:50     ` Charles Forsyth
2010-10-27 13:53       ` Gorka Guardiola
2010-10-27 13:55         ` Francisco J Ballesteros
2010-10-27 14:12         ` John Floren
2010-10-27 14:13       ` Eric Van Hensbergen
2010-10-27 14:48         ` Venkatesh Srinivas
2010-10-27 15:45           ` erik quanstrom
2010-10-27 15:54             ` Venkatesh Srinivas
2010-10-27 21:04               ` Bruce Ellis
2010-10-28 12:12               ` Charles Forsyth
2010-10-28 13:32                 ` Bruce Ellis
2010-10-28 14:30                 ` Gorka Guardiola
2010-10-28 14:39                   ` Gorka Guardiola
2010-10-28 14:58                     ` erik quanstrom
2010-10-28 14:41                   ` Francisco J Ballesteros
2010-10-28 14:45                     ` Eric Van Hensbergen
2010-10-28 14:56                       ` Francisco J Ballesteros
2010-10-28 15:37                         ` Nathaniel W Filardo [this message]
2010-10-28 15:40                           ` erik quanstrom
2010-10-28 15:53                           ` Francisco J Ballesteros
2010-10-28 19:17                             ` Venkatesh Srinivas
2010-10-28 19:24                 ` Venkatesh Srinivas
2010-10-28 20:18                   ` Charles Forsyth
2010-10-28 20:32                     ` Venkatesh Srinivas
2010-10-28 20:55                       ` Nemo
2010-10-28 21:22                         ` Venkatesh Srinivas
2010-10-28 22:17                           ` Francisco J Ballesteros
2010-10-28 23:51                     ` Gorka Guardiola
2010-10-29  5:37                       ` Bruce Ellis
2010-10-29  7:44                         ` Gorka Guardiola
2010-10-29  8:51                           ` Bruce Ellis
2010-10-29  9:01                       ` Charles Forsyth
2010-10-29  8:58                         ` Bruce Ellis
2010-10-29 16:38                           ` Charles Forsyth
2010-10-29  9:45                         ` Gorka Guardiola
2010-10-29  9:56                           ` Bruce Ellis
2010-10-29 16:01                           ` Charles Forsyth
2010-10-29 15:58                             ` Venkatesh Srinivas
2010-10-29 16:02                             ` roger peppe
2010-10-29 16:17                               ` Bruce Ellis
2010-10-29 16:47                                 ` roger peppe
2010-10-29 16:04                           ` Charles Forsyth
2010-10-29 14:14                         ` Eric Van Hensbergen
2010-10-29 15:21                           ` roger peppe
2010-10-29 15:36                             ` erik quanstrom
2010-10-29 15:39                             ` Eric Van Hensbergen
2010-10-29 15:49                             ` Charles Forsyth
2010-10-29 15:50                               ` Eric Van Hensbergen
2010-10-29 15:59                                 ` Bruce Ellis
2010-10-29 16:28                                   ` Venkatesh Srinivas
2010-10-29 17:16                                     ` erik quanstrom
2010-10-29 16:47                               ` David Leimbach
2010-10-29 17:13                                 ` Charles Forsyth
2010-10-29 17:22                                   ` David Leimbach
2010-10-29 17:26                                     ` erik quanstrom
2010-10-29 17:47                                       ` Bruce Ellis
2010-10-29 19:33                                         ` roger peppe
2010-10-29 20:27                                           ` Bruce Ellis
2010-10-29 20:41                                             ` Gorka Guardiola
2010-10-29 20:44                                               ` Bruce Ellis
2010-10-29 22:31                                                 ` Bakul Shah
2010-10-29 22:39                                                 ` roger peppe
2010-10-29 22:43                                                   ` Bruce Ellis
2010-10-29 23:07                                                     ` roger peppe
2010-10-29 23:28                                                       ` Bruce Ellis
2010-10-30  9:08                                                         ` Nemo
2010-10-31  5:39                                                           ` Bruce Ellis
2010-10-31  8:52                                                             ` roger peppe
2010-10-31  8:57                                                               ` Bruce Ellis
2010-10-31 10:25                                                                 ` fgergo
2010-10-31 11:11                                                                   ` fgergo
2010-10-31 11:21                                                                   ` Bruce Ellis
2010-10-31 11:23                                                                 ` roger peppe
2010-10-31 13:06                                                                   ` Gorka Guardiola
2010-10-31 13:07                                                                     ` Gorka Guardiola
2010-10-31 13:22                                                                       ` Gorka Guardiola
2010-11-02 14:29                                                                     ` Richard Miller
2010-10-31 14:21                                                               ` Eric Van Hensbergen
2010-10-31 22:17                                                                 ` Bruce Ellis
2010-10-31 22:32                                                                   ` EBo
2010-10-31 22:41                                                                   ` Steve Simon
2010-11-02 13:49                                                                   ` Richard Miller
2010-11-02 14:02                                                                     ` Eric Van Hensbergen
2010-10-29 18:27                                       ` David Leimbach
2010-10-29 17:18                                 ` Charles Forsyth
2010-10-29 17:17                                   ` erik quanstrom
2010-10-29 17:25                                     ` David Leimbach
2010-10-29 18:03                                   ` Eric Van Hensbergen
2010-10-29 18:54                                   ` Gorka Guardiola
2010-10-29 19:30                                     ` David Leimbach
2010-10-29 20:20                                     ` erik quanstrom
2010-10-29 15:55                         ` Venkatesh Srinivas
2010-10-29 13:12                     ` roger peppe
2010-10-29 13:20                       ` Lucio De Re
2010-10-29 15:51                       ` Charles Forsyth
2010-10-29 16:36                       ` Charles Forsyth
2010-10-27 15:09       ` David Leimbach
2010-10-28 21:39 erik quanstrom

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