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Ts'o: Delayed allocation and the zero-length file problemTs'o: Delayed allocation and the zero-length file problemPosted Mar 20, 2009 14:40 UTC (Fri) by anton (guest, #25547)In reply to: Ts'o: Delayed allocation and the zero-length file problem by forthy Parent article: Ts'o: Delayed allocation and the zero-length file problem Write barriers or something equivalent (properly-used tagged commands, write cache flushes, or disabling write-back caches) are needed for any file system that wants to provide any consistency guarantee. Otherwise the disk drive can delay writing one block indefinitely while writing out others that are much later logically.
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