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ext4 and data lossext4 and data lossPosted Mar 13, 2009 0:46 UTC (Fri) by nix (subscriber, #2304)In reply to: ext4 and data loss by dlang Parent article: ext4 and data loss
I didn't think POSIX filesystem operations were allowed to be executed out
of order. I've never read any code, no matter how old, that took any measures to allow for this.
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ext4 and data loss Posted Mar 13, 2009 0:49 UTC (Fri) by quotemstr (subscriber, #45331) [Link]
They're only out of order from the point of view of a system recovering from a crash. Otherwise, there'd be an even larger furor. :-) I think the way rename is used, it was always intended to have barrier semantics, and sane filesystems should respect that intent.
ext4 and data loss Posted Mar 13, 2009 7:58 UTC (Fri) by nix (subscriber, #2304) [Link]
Strongly seconded. I suppose nothing is ever really *guaranteed* about
post-crash state, so this is merely a QoI, but an important one.
(Memories of the Algol 68 standard, I think it was, going to some lengths
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