Re: TAKE 977545 - xfsaild causing too many wakeups

[David Chinner <dgc@sgi.com>]

On Wed, Mar 05, 2008 at 02:43:17PM -0600, Eric Sandeen wrote:
> David Chinner wrote:
> > xfsaild causing too many wakeups
> > 
> > Idle state is not being detected properly by the xfsaild push code.
> > The current idle state is detected by an empty list which may never
> > happen with mostly idle filesystem or one using lazy superblock
> > counters. A single dirty item in the list that exists beyond the
> > push target can result repeated looping attempting to push
> > up to the target because it fails to check if the push target
> > has been acheived or not.
> > 
> > Fix by considering a dirty list with everything past the target
> > as an idle state and set the timeout appropriately.
> 
> Will this go to 2.6.25?

Yes, it certainly should.

Cheers,

Dave.
-- 
Dave Chinner
Principal Engineer
SGI Australian Software Group