linux-kernel - Re: Write is not atomic?

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Message-ID: <20121015234006.GK2842@pompeji.miese-zwerge.org>
Date:	Tue, 16 Oct 2012 01:40:06 +0200
From:	Jochen Striepe <jochen@...ot.escape.de>
To:	Juliusz Chroboczek <jch@....jussieu.fr>
Cc:	linux-kernel@...r.kernel.org
Subject: Re: Write is not atomic?

	Hello,

On Mon, Oct 15, 2012 at 11:36:15PM +0200, Juliusz Chroboczek wrote:
> The Linux manual page for write(2) says:
> 
>     The adjustment of the file offset and the write operation are
>     performed as an atomic step.

This seems out of context.

Over here write(2) reads:

      If the file was open(2)ed with O_APPEND, the file offset is first
      set to the end of the file before writing.  The adjustment of the
      file offset and the write operation are performed as an atomic
      step.

Sounds different, doesn't it?

Hth,
Jochen.
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