diff options
| author | Nick Piggin <npiggin@suse.de> | 2007-12-14 03:15:35 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2008-02-02 01:34:56 +0300 |
| commit | 041509db390cf97b09df0f51024f5d40407938db (patch) | |
| tree | d4b0c303acc9fb2bb2c38c6a4ccc820a3e690e4e /drivers/usb/mon/mon_bin.c | |
| parent | d0fab0ddf3fca22f73b95d2e15b598fa17876c69 (diff) | |
| download | linux-041509db390cf97b09df0f51024f5d40407938db.tar.xz | |
USB: mon nopage
Convert USB mon driver from nopage to fault.
Signed-off-by: Nick Piggin <npiggin@suse.de>
Acked-by: Pete Zaitcev <zaitcev@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers/usb/mon/mon_bin.c')
| -rw-r--r-- | drivers/usb/mon/mon_bin.c | 16 |
1 files changed, 7 insertions, 9 deletions
diff --git a/drivers/usb/mon/mon_bin.c b/drivers/usb/mon/mon_bin.c index 81aab527024c..d70666f1a90d 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; |