[PATCH, RFC] xfs: remove i_iolock and use i_rwsem in the VFS inode instead

[Christoph Hellwig]

On Fri, Aug 12, 2016 at 09:43:35AM +1000, Dave Chinner wrote:
> Regardless, if the rwsem code can be made to check for exclusive or
> shared locking, we can get rid of the mrlock abstraction. Can we do
> that first, Christoph, then make this lock change?

I was going to do that next, but if you want the patch order switched
around I can do that as well.