Re: [PATCH 1/6] Extend completions to provide XFS object flush requirements

Dave Chinner
2008-06-26T11:31:19Z

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.

Cheers,

Dave.
--
Dave Chinner
david@fromorbit.com