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    SubjectRe: journaling filesystem
       Date: 	Wed, 11 Jun 1997 14:16:15 +0800 (GMT)
    From: Orlando Andico <>

    i just read about the veritas filesystem (well, yeah, it existed a long
    time ago..) and was wondering if journaling is ever going to be added to
    ext2fs. what must be added/modified to the driver code to support an
    intent log? i think basic journaling code would "only" require addition of
    an intent log (where?) and add reading of this log to e2fsck..

    Adding journalling isn't so simple. One, you need ordered writes, which
    is something the low-level block device interface doesn't provide.
    Secondly, you have to worry about performance, which is hard to do while
    still having the ordering semantics.

    - Ted

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