From: Christoph Hellwig <hch@infradead.org>
To: Olaf van der Spek <olaf@xwis.net>
Cc: xfs@oss.sgi.com
Subject: Re: fsync, rename, O_ATOMIC/O_PONIES
Date: Fri, 2 Mar 2012 08:12:40 -0500 [thread overview]
Message-ID: <20120302131240.GA14186@infradead.org> (raw)
In-Reply-To: <4F50BF89.7020909@xwis.net>
> I'd like to ask:
> - Is there a tool to log all unsafe operations?
What is an unsafe operation? Anything that's dumb and might lose data?
The possibilities are sheer endless.
> - What is the *right* way to update a file?
fd = open(tmpfile, ...);
write(fd, ...); // or any other update
fdatasync(fd);
rename(tmpfile, realfile);
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next prev parent reply other threads:[~2012-03-02 13:12 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-03-02 12:39 fsync, rename, O_ATOMIC/O_PONIES Olaf van der Spek
2012-03-02 13:12 ` Christoph Hellwig [this message]
2012-03-04 17:14 ` Olaf van der Spek
2012-03-05 1:02 ` Dave Chinner
2012-03-05 15:44 ` Olaf van der Spek
2012-03-05 23:17 ` Dave Chinner
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