From: Keith Owens <kaos@ocs.com.au>
To: linux-kernel@vger.kernel.org
Subject: Re: [PATCH] zerocopy NFS updated
Date: Sun, 14 Apr 2002 10:07:56 +1000 [thread overview]
Message-ID: <32583.1018742876@ocs3.intra.ocs.com.au> (raw)
In-Reply-To: Your message of "Sat, 13 Apr 2002 11:52:49 MST." <20020413185249.GA31470@tapu.f00f.org>
On Sat, 13 Apr 2002 11:52:49 -0700,
Chris Wedgwood <cw@f00f.org> wrote:
>On Fri, Apr 12, 2002 at 02:31:50PM -0700, David S. Miller wrote:
>
> If you need to depend upon a consistent snapshot of what some
> other thread writes into a file, you must have some locking
> protocol to use to synchronize with that other thread.
>
>Appends of small-writes (for whatever reason) seems to be atomic,
>AFAIK nobody gets corrupt apache logs for example.
Write in append mode must be atomic in the kernel. Whether a user
space write in append mode is atomic or not depends on how many write()
syscalls it takes to pass the data into the kernel. Each write()
append will be atomic but multiple writes can be interleaved.
next prev parent reply other threads:[~2002-04-14 0:08 UTC|newest]
Thread overview: 55+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20020410.190550.83626375.taka@valinux.co.jp.suse.lists.linux.kernel>
2002-04-10 19:32 ` Andi Kleen
2002-04-11 2:30 ` David S. Miller
2002-04-11 6:46 ` Hirokazu Takahashi
2002-04-11 6:48 ` David S. Miller
2002-04-11 7:41 ` Hirokazu Takahashi
2002-04-11 7:52 ` David S. Miller
2002-04-11 11:38 ` Hirokazu Takahashi
2002-04-11 11:36 ` David S. Miller
2002-04-11 18:00 ` Denis Vlasenko
2002-04-11 13:16 ` Andi Kleen
2002-04-11 17:36 ` Benjamin LaHaise
2002-04-16 0:17 ` Mike Fedyk
2002-04-16 15:37 ` Oliver Xymoron
2002-04-11 17:33 ` Benjamin LaHaise
2002-04-12 8:10 ` Hirokazu Takahashi
2002-04-12 12:30 ` Hirokazu Takahashi
2002-04-12 12:35 ` Andi Kleen
2002-04-12 21:22 ` Jamie Lokier
2002-04-12 21:31 ` David S. Miller
2002-04-13 0:21 ` Jamie Lokier
2002-04-13 6:39 ` Andi Kleen
2002-04-13 8:01 ` Hirokazu Takahashi
2002-04-13 19:19 ` Eric W. Biederman
2002-04-13 19:37 ` Andi Kleen
2002-04-13 20:34 ` Eric W. Biederman
2002-04-24 23:11 ` Mike Fedyk
2002-04-25 17:11 ` Andreas Dilger
2002-04-13 18:52 ` Chris Wedgwood
2002-04-14 0:07 ` Keith Owens [this message]
2002-04-14 8:19 ` Chris Wedgwood
2002-04-14 8:40 ` Keith Owens
2002-04-12 21:39 ` David S. Miller
2002-04-15 1:30 ` Hirokazu Takahashi
2002-04-15 4:23 ` David S. Miller
2002-04-16 1:03 ` Hirokazu Takahashi
2002-04-16 1:41 ` Jakob Østergaard
2002-04-16 2:20 ` Hirokazu Takahashi
2002-04-18 5:01 ` Hirokazu Takahashi
2002-04-18 7:58 ` Jakob Østergaard
2002-04-18 8:53 ` Trond Myklebust
2002-04-19 3:21 ` Hirokazu Takahashi
2002-04-19 9:18 ` Trond Myklebust
2002-04-20 7:47 ` Hirokazu Takahashi
2002-04-25 12:37 ` Possible bug with UDP and SO_REUSEADDR. Was " Terje Eggestad
2002-04-26 2:43 ` David S. Miller
2002-04-26 7:38 ` Terje Eggestad
2002-04-29 0:41 ` Possible bug with UDP and SO_REUSEADDR David Schwartz
2002-04-29 8:06 ` Terje Eggestad
2002-04-29 8:44 ` David Schwartz
2002-04-29 10:03 ` Terje Eggestad
2002-04-29 10:38 ` David Schwartz
2002-04-29 14:20 ` Terje Eggestad
[not found] ` <200204192128.QAA24592@popmail.austin.ibm.com>
2002-04-20 10:14 ` [PATCH] zerocopy NFS updated Hirokazu Takahashi
2002-04-20 15:49 ` Andrew Theurer
2002-04-10 10:05 Hirokazu Takahashi
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