tree 733a672aeb819bb8133b16329a6b5088cf9ee693
parent 6df9183a153291a2585a8dfe67597fc18c201147
author Dan Williams <dan.j.williams@intel.com> 1252436464 -0700
committer Dan Williams <dan.j.williams@intel.com> 1252456224 -0700

ioat: cleanup completion status reads

The cleanup path makes an effort to only perform an atomic read of the
64-bit completion address.  However in the 32-bit case it does not
matter if we read the upper-32 and lower-32 non-atomically because the
upper-32 will always be zero.

Signed-off-by: Maciej Sosnowski <maciej.sosnowski@intel.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>