Nick Piggin wrote:
Index: linux-2.6/sound/oss/via82cxxx_audio.c =================================================================== --- linux-2.6.orig/sound/oss/via82cxxx_audio.c +++ linux-2.6/sound/oss/via82cxxx_audio.c @@ -2099,8 +2099,7 @@ static void via_dsp_cleanup (struct via_ }-static struct page * via_mm_nopage (struct vm_area_struct * vma,- unsigned long address, int *type) +static int via_mm_fault (struct vm_area_struct *vma, struct vm_fault *vmf) { struct via_info *card = vma->vm_private_data; struct via_channel *chan = &card->ch_out; @@ -2108,22 +2107,14 @@ static struct page * via_mm_nopage (stru unsigned long pgoff; int rd, wr;- DPRINTK ("ENTER, start %lXh, ofs %lXh, pgoff %ld, addr %lXh\n",- vma->vm_start, - address - vma->vm_start, - (address - vma->vm_start) >> PAGE_SHIFT, - address); - - if (address > vma->vm_end) { - DPRINTK ("EXIT, returning NOPAGE_SIGBUS\n"); - return NOPAGE_SIGBUS; /* Disallow mremap */ - } + DPRINTK ("ENTER, pgoff %ld\n", vmf->pgoff); + if (!card) { - DPRINTK ("EXIT, returning NOPAGE_SIGBUS\n"); - return NOPAGE_SIGBUS; /* Nothing allocated */ + DPRINTK ("EXIT, returning VM_FAULT_SIGBUS\n"); + return VM_FAULT_SIGBUS; /* Nothing allocated */ }- pgoff = vma->vm_pgoff + ((address - vma->vm_start) >> PAGE_SHIFT);+ pgoff = vmf->pgoff; rd = card->ch_in.is_mapped; wr = card->ch_out.is_mapped;@@ -2150,9 +2141,8 @@ static struct page * via_mm_nopage (struDPRINTK ("EXIT, returning page %p for cpuaddr %lXh\n", dmapage, (unsigned long) chan->pgtbl[pgoff].cpuaddr); get_page (dmapage); - if (type) - *type = VM_FAULT_MINOR; - return dmapage; + vmf->page = dmapage; + return 0; }
Although the overall concept looks nice (ACK, good work), the above change does not build. The code continues to reference via_mm_nopage(), which has been renamed to via_mm_fault() in your patch.
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