Pull block fixes from Jens Axboe:
 "Three small fixes:

   - A fix for skd, it was using kfree() to free a structure allocate
     with kmem_cache_alloc().

   - Stable fix for nbd, fixing a regression using the normal ioctl
     based tools.

   - Fix for a previous fix in this series, that fixed up
     inconsistencies between buffered and direct IO"

* 'for-linus' of git://git.kernel.dk/linux-block:
  fs: Avoid invalidation in interrupt context in dio_complete()
  nbd: don't set the device size until we're connected
  skd: Use kmem_cache_free