[PATCH 4/7] xfs: split direct IO write path from xfs_file_aio_write

[Christoph Hellwig]

On Fri, Dec 17, 2010 at 06:31:25PM +1100, Dave Chinner wrote:
> > Speaking of that, shouldn't xfs_file_aio_read also take the iolock
> > exclusive during the page invalidation and then demote it, just like
> > the write case?  The above helpers would enforce that nicely.
> 
> Probably, though it might be best to leave that to another cleanup
> series. I'll see how much perturbation of the read path it makes....

Yes, it should be a separate patch for sure.  If you prefer another
series that's fine with me, too.