linux-kernel - Re: POSIX violation by writeback error

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Message-ID: <3805399.0d8HT3LL4o@merkaba>
Date:   Wed, 05 Sep 2018 09:39:58 +0200
From:   Martin Steigerwald <martin@...htvoll.de>
To:     Rogier Wolff <R.E.Wolff@...wizard.nl>
Cc:     Jeff Layton <jlayton@...hat.com>,
        焦晓冬 <milestonejxd@...il.com>,
        linux-fsdevel@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: POSIX violation by writeback error

Rogier Wolff - 05.09.18, 09:08:
> So when a mail queuer puts mail the mailq files and the mail processor
> can get them out of there intact, nobody is going to notice.  (I know
> mail queuers should call fsync and report errors when that fails, but
> there are bound to be applications where calling fsync is not
> appropriate (*))

AFAIK at least Postfix MDA only reports mail as being accepted over SMTP 
once fsync() on the mail file completed successfully. And I´d expect 
every sensible MDA to do this. I don´t know how Dovecot MDA which I 
currently use for sieve support does this tough.

-- 
Martin