[PATCH v4] xfs: probe data buffer from page cache for unwritten extents

[Christoph Hellwig]

On Sun, Jul 22, 2012 at 01:29:14PM +0800, Jie Liu wrote:
> Should we keep 285 unchanged and introduce a new test 28? which is
> dedicated to ensuring the refinements works as expected?
> I have added some new test cases to Mark's test program yesterday,
> looks it will grow even bigger if I can think out some other
> corner cases(will send them to Mark).

I think a separate case is better, as 285 just tests a basic correct
implementation, while this one tests the refinements.