diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/infiniband/hw/ipath/ipath_file_ops.c | 13 |
1 files changed, 4 insertions, 9 deletions
diff --git a/drivers/infiniband/hw/ipath/ipath_file_ops.c b/drivers/infiniband/hw/ipath/ipath_file_ops.c index 0b6e7679eefd..e999a46bef9b 100644 --- a/drivers/infiniband/hw/ipath/ipath_file_ops.c +++ b/drivers/infiniband/hw/ipath/ipath_file_ops.c @@ -992,15 +992,10 @@ static int mmap_piobufs(struct vm_area_struct *vma, pgprot_val(vma->vm_page_prot) &= ~_PAGE_GUARDED; #endif - if (vma->vm_flags & VM_READ) { - dev_info(&dd->pcidev->dev, - "Can't map piobufs as readable (flags=%lx)\n", - vma->vm_flags); - ret = -EPERM; - goto bail; - } - - /* don't allow them to later change to readable with mprotect */ + /* + * don't allow them to later change to readable with mprotect (for when + * not initially mapped readable, as is normally the case) + */ vma->vm_flags &= ~VM_MAYREAD; vma->vm_flags |= VM_DONTCOPY | VM_DONTEXPAND; |
