diff options
| author | David Woodhouse <David.Woodhouse@intel.com> | 2009-06-28 18:52:20 +0100 |
|---|---|---|
| committer | David Woodhouse <David.Woodhouse@intel.com> | 2009-06-29 13:39:17 +0100 |
| commit | 310a5ab93cb4ce29367238f682affd9ac352f4d0 (patch) | |
| tree | dc5bb8f208778ebe0aee0054b7af516a36e2b543 /mm | |
| parent | c5395d5c4a82159889cb650de93b591ea51d8c56 (diff) | |
intel-iommu: Performance improvement for dma_pte_clear_range()
It's a bit silly to repeatedly call domain_flush_cache() for each PTE
individually, as we clear it. Instead, batch them up and flush a whole
range at a time. We might as well refrain from recalculating the PTE
address from scratch each time round the loop too.
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
Diffstat (limited to 'mm')
0 files changed, 0 insertions, 0 deletions