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From: geoff@plan9.bell-labs.com
To: 9fans@9fans.net
Subject: Re: [9fans] 9pfuse and O_APPEND
Date: Thu, 18 Dec 2008 23:13:08 -0500	[thread overview]
Message-ID: <4bdece4cd73b46e7fe957da67fa215c6@plan9.bell-labs.com> (raw)
In-Reply-To: <41C79A6A-3A01-4AD3-A73C-BFDA28439FE5@sun.com>

The places that DMAPPEND is used most commonly are log files and mail
boxes.  In both cases, I don't want the decision of whether to
truncate or append left to the whims of some program.  I want writes
to append, by god, and DMAPPEND on actual disk-based file servers such
as fossil and fs does that.  (Yes, a malicious program could perhaps
clear DMAPPEND and truncate, but the more likely cause of disaster in
a system without DMAPPEND is someone forgetting to set a hypothetical
`append mode' on a fid or equivalent.  You only have to slip up once
to ruin someone's day.)




  reply	other threads:[~2008-12-19  4:13 UTC|newest]

Thread overview: 33+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2008-12-18 23:34 Roman Shaposhnik
2008-12-18 23:57 ` Russ Cox
2008-12-19  0:03   ` ron minnich
2008-12-19  3:06     ` Roman Shaposhnik
2008-12-19  3:26       ` ron minnich
2008-12-19  3:59         ` Roman Shaposhnik
2008-12-19 16:44           ` ron minnich
2008-12-19 19:21             ` Anthony Sorace
2008-12-19 19:31               ` erik quanstrom
2008-12-19 19:41               ` ron minnich
2008-12-19 19:59             ` Roman Shaposhnik
2008-12-19 20:06               ` erik quanstrom
2008-12-19 20:18               ` Charles Forsyth
2008-12-21  5:08                 ` Roman V. Shaposhnik
2008-12-19  3:03   ` Roman Shaposhnik
2008-12-19  3:43     ` erik quanstrom
2008-12-19  3:54       ` Roman Shaposhnik
2008-12-19  4:13         ` geoff [this message]
2008-12-19  8:23           ` Russ Cox
2008-12-19 19:49             ` Roman Shaposhnik
2008-12-19 19:56               ` erik quanstrom
2008-12-19 20:10                 ` Roman Shaposhnik
2008-12-19 20:22                   ` erik quanstrom
2008-12-19 20:02               ` ron minnich
2008-12-19 14:21           ` erik quanstrom
2008-12-19 21:00 ` ron minnich
2008-12-19 21:32   ` Charles Forsyth
2008-12-19 21:29     ` ron minnich
2008-12-21  5:05   ` Roman V. Shaposhnik
2008-12-21 14:45     ` erik quanstrom
2008-12-22 10:02       ` roger peppe
2008-12-25  6:04       ` Roman Shaposhnik
2008-12-25  6:33         ` erik quanstrom

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