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    SubjectRe: True fsync() in Linux (on IDE)
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    On Fri, 2004-03-19 at 15:48, Hans Reiser wrote:
    > Chris Mason wrote:
    >
    > >
    > >>
    > >>and I was imprecise, I should have asked, does fsync flush the disk
    > >>cache regardless of what mount options are set or data/metadata touched
    > >>in the 2.6 patches?

    > Forgive my relentlessness, is the answer to the above yes?

    Yes ;-) One goal of the 2.6 patches is to make it possible for higher
    levels to easily insert flushes when needed. The reiserfs fsync and
    ext3 fsync code will both do this.

    I realized I wasn't clear about device mapper and md earlier, both need
    extra work to aggregate the flushes down to the drives. They don't yet
    support flushing.

    -chris


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