From: Nick Piggin Date: Fri, 14 Dec 2007 00:15:35 +0000 (-0800) Subject: USB: mon nopage X-Git-Tag: v2.6.25-rc1~1075^2~63 X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=041509db390cf97b09df0f51024f5d40407938db;p=linux-2.6 USB: mon nopage Convert USB mon driver from nopage to fault. Signed-off-by: Nick Piggin Acked-by: Pete Zaitcev Signed-off-by: Andrew Morton Signed-off-by: Greg Kroah-Hartman --- diff --git a/drivers/usb/mon/mon_bin.c b/drivers/usb/mon/mon_bin.c index 81aab52702..d70666f1a9 100644 --- a/drivers/usb/mon/mon_bin.c +++ b/drivers/usb/mon/mon_bin.c @@ -1047,33 +1047,31 @@ static void mon_bin_vma_close(struct vm_area_struct *vma) /* * Map ring pages to user space. */ -struct page *mon_bin_vma_nopage(struct vm_area_struct *vma, - unsigned long address, int *type) +static int mon_bin_vma_fault(struct vm_area_struct *vma, struct vm_fault *vmf) { struct mon_reader_bin *rp = vma->vm_private_data; unsigned long offset, chunk_idx; struct page *pageptr; - offset = (address - vma->vm_start) + (vma->vm_pgoff << PAGE_SHIFT); + offset = vmf->pgoff << PAGE_SHIFT; if (offset >= rp->b_size) - return NOPAGE_SIGBUS; + return VM_FAULT_SIGBUS; chunk_idx = offset / CHUNK_SIZE; pageptr = rp->b_vec[chunk_idx].pg; get_page(pageptr); - if (type) - *type = VM_FAULT_MINOR; - return pageptr; + vmf->page = pageptr; + return 0; } struct vm_operations_struct mon_bin_vm_ops = { .open = mon_bin_vma_open, .close = mon_bin_vma_close, - .nopage = mon_bin_vma_nopage, + .fault = mon_bin_vma_fault, }; int mon_bin_mmap(struct file *filp, struct vm_area_struct *vma) { - /* don't do anything here: "nopage" will set up page table entries */ + /* don't do anything here: "fault" will set up page table entries */ vma->vm_ops = &mon_bin_vm_ops; vma->vm_flags |= VM_RESERVED; vma->vm_private_data = filp->private_data;