From: Roland Dreier There's no need to set VM_DONTCOPY when mmap()ing the hardware doorbell page into userspace. Signed-off-by: Roland Dreier Signed-off-by: Andrew Morton --- drivers/infiniband/hw/mthca/mthca_provider.c | 1 - 1 files changed, 1 deletion(-) diff -puN drivers/infiniband/hw/mthca/mthca_provider.c~ib-uverbs-add-mthca-mmap-support-fix-2 drivers/infiniband/hw/mthca/mthca_provider.c --- 25/drivers/infiniband/hw/mthca/mthca_provider.c~ib-uverbs-add-mthca-mmap-support-fix-2 Wed Jul 6 13:27:13 2005 +++ 25-akpm/drivers/infiniband/hw/mthca/mthca_provider.c Wed Jul 6 13:27:13 2005 @@ -347,7 +347,6 @@ static int mthca_mmap_uar(struct ib_ucon return -EINVAL; vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot); - vma->vm_flags |= VM_DONTCOPY; if (remap_pfn_range(vma, vma->vm_start, to_mucontext(context)->uar.pfn, _