[PATCH 2/4] xfsqa: make unmounting loop devices in 073 work again

[Dave Chinner]

On Tue, Jan 12, 2010 at 05:00:31AM -0500, Christoph Hellwig wrote:
> On Tue, Jan 12, 2010 at 03:41:07PM +1100, Dave Chinner wrote:
> > Loop devices are now created and destroyed on demand, and
> > the existing hacks to do this no longer work. Remove them.
> 
> Just noticed that I had not been running this test at all for a long
> time as it doesn't work with external logs.
> 
> Seems like the current code indeed fails reliably for me and this
> patch fixes it.
> 
> The only problem is that the loop device autodestruct features is only
> available since Linux 2.6.25 and also needs a recent util-linux.  Is
> this old enough to simply go with the auto destruct version, or do
> we need to support either one?
> 
> What about the patch below?  This adds the -d argument to the umount
> calls for the loop images, which destroys the loop images in older
> kernels and is a no-op for modern kernels that have the loop
> auto-destruct feature:

Yes, that looks like a better way to solve the problem.

Cheers,

Dave.
-- 
Dave Chinner
david at fromorbit.com