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SubjectRe: 2.6.6-mm5

> - Implementation of request barriers for IDE and SCSI. The idea here is
> that a filesystem can tag an IO request as a barrier and the disk will not
> reorder writes across the barrier. It provides additional integrity
> guarantees for the journalling filesystems. The feature is enabled for
> reiserfs and ext3.

*Additional* guarantees? Is there anything we can garant
without request barriers?

64 bytes from icmp_seq=28 ttl=51 time=448769.1 ms

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