linux-kernel - Re: Write is not atomic?

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Message-ID: <7itxtvpate.fsf@lanthane.pps.jussieu.fr>
Date:	Tue, 16 Oct 2012 01:36:29 +0200
From:	Juliusz Chroboczek <jch@....jussieu.fr>
To:	Max Filippov <jcmvbkbc@...il.com>
Cc:	linux-kernel@...r.kernel.org
Subject: Re: Write is not atomic?

> You don't check return code here, does write succeed at all?

Yes, both writes return 6.

> Does it ever produce e.g. OuOuilleille

No.

> (as this is what atomicity is about here)?

I was referring to the claim that under Linux writing and adjusting the
file offset are performed as an atomic step, not to the atomicity of the
write operation itself.

-- Juliusz
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