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    SubjectRe: [dm-devel] Re: [RFD] BIO_RW_BARRIER - what it means for devices, filesystems, and dm/md.
    On Thu, May 31, 2007 at 10:46:04AM +1000, Neil Brown wrote:
    > What if the truth changes (as can happen with md or dm)?

    You get notified in endio() that the barrier had to be emulated?

    Alasdair
    --
    agk@redhat.com
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