tree 035a4d1280053dbd68a78b1b31df3d6056f94440
parent ff7204a74931fc67ed13d8febbc322a46833c1fa
author Alexander Duyck <alexander.h.duyck@intel.com> 1350321574 -0700
committer Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> 1351603926 -0400

swiotlb: Make io_tlb_overflow_buffer a physical address

This change makes it so that we can avoid virt_to_phys overhead when using the
io_tlb_overflow_buffer.  My original plan was to completely remove the value
and replace it with a constant but I had seen that there were recent patches
that stated this couldn't be done until all device drivers that depended on
that functionality be updated.

Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>