From: Trond Myklebust <trond.myklebust@fys.uio.no>
To: Gregory Giguashvili <Gregoryg@ParadigmGeo.com>
Cc: "'trond.myklebust@fys.uio.no'" <trond.myklebust@fys.uio.no>,
"Linux Kernel (E-mail)" <linux-kernel@vger.kernel.org>
Subject: RE: O_SYNC option doesn't work (2.4.18-3)
Date: Wed, 7 Aug 2002 21:38:01 +0200 [thread overview]
Message-ID: <15697.30489.765404.126474@charged.uio.no> (raw)
In-Reply-To: <EE83E551E08D1D43AD52D50B9F511092E114E3@ntserver2>
>>>>> " " == Gregory Giguashvili <Gregoryg@ParadigmGeo.com> writes:
> File locking, meaning lockd? There are so many problems with
> file locking in heterogeneous environments that we were moving
> towards dropping its usage. Instead, we planned to use some
> home grown TCP based lock server mechanism.
> I understand that locking file flushes NFS cache, isn't it? Why
> can't it be flushed by O_SYNC and "sync" options presence? This
> would make the life much easier for programmers...
Tough. The above is not part of the O_SYNC spec on any platform and I
have no intention of implementing it.
The sort of thing you would like to do will be possible with O_DIRECT
(which is a design to allow user programs to manage their own
caches). That has yet to be integrated into the standard kernel
though.
Cheers,
Trond
next prev parent reply other threads:[~2002-08-07 19:34 UTC|newest]
Thread overview: 25+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-08-07 19:24 O_SYNC option doesn't work (2.4.18-3) Gregory Giguashvili
2002-08-07 19:38 ` Trond Myklebust [this message]
2002-08-07 21:55 ` Alan Cox
-- strict thread matches above, loose matches on Subject: below --
2002-08-08 14:57 Gregory Giguashvili
2002-08-08 15:37 ` Daniel Forrest
2002-08-08 13:48 Jesse Pollard
[not found] <fa.jepn5rv.uiqrqe@ifi.uio.no>
[not found] ` <fa.gkqj0av.c661ad@ifi.uio.no>
2002-08-08 7:11 ` Giacomo Catenazzi
2002-08-08 8:06 ` Willy Tarreau
2002-08-08 12:36 ` Alan Cox
2002-08-07 20:48 Jesse Pollard
2002-08-08 10:07 ` Martin Brulisauer
2002-08-07 19:30 Gregory Giguashvili
2002-08-08 13:42 ` Trond Myklebust
2002-08-07 18:54 Gregory Giguashvili
2002-08-07 18:13 ` Trond Myklebust
2002-08-07 18:39 Gregory Giguashvili
2002-08-07 17:43 ` Trond Myklebust
2002-08-07 18:15 Jesse Pollard
2002-08-07 17:31 Gregory Giguashvili
2002-08-07 17:19 ` Trond Myklebust
2002-08-07 17:24 Gregory Giguashvili
2002-08-07 16:31 ` Trond Myklebust
2002-08-07 17:17 Gregory Giguashvili
2002-08-07 16:24 ` Trond Myklebust
2002-08-07 20:20 ` Benjamin LaHaise
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