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    SubjectRe: [PATCH 1/6] Extend completions to provide XFS object flush requirements
    On Thu, Jun 26, 2008 at 05:26:12AM -0600, Matthew Wilcox wrote:
    > On Thu, Jun 26, 2008 at 02:41:12PM +1000, Dave Chinner wrote:
    > > XFS object flushing doesn't quite match existing completion semantics. It
    > > mixed exclusive access with completion. That is, we need to mark an object as
    > > being flushed before flushing it to disk, and then block any other attempt to
    > > flush it until the completion occurs.
    > This sounds like mutex semantics. Why are the existing mutexes not
    > appropriate for your needs?

    Different threads doing wait and complete.


    Dave Chinner

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