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Subject[PATCH 3/3] uio: vm_operations_struct ->nopage to ->fault method conversion
Date
Signed-off-by: Denis Cheng <crquan@gmail.com>
---
drivers/uio/uio.c | 19 ++++++++-----------
1 files changed, 8 insertions(+), 11 deletions(-)
diff --git a/drivers/uio/uio.c b/drivers/uio/uio.c
index cc246fa..47e0c32 100644
--- a/drivers/uio/uio.c
+++ b/drivers/uio/uio.c
@@ -417,30 +417,27 @@ static void uio_vma_close(struct vm_area_struct *vma)
idev->vma_count--;
}

-static struct page *uio_vma_nopage(struct vm_area_struct *vma,
- unsigned long address, int *type)
+static int uio_vma_fault(struct vm_area_struct *vma, struct vm_fault *vmf)
{
struct uio_device *idev = vma->vm_private_data;
- struct page* page = NOPAGE_SIGBUS;

int mi = uio_find_mem_index(vma);
if (mi < 0)
- return page;
+ return VM_FAULT_SIGBUS;

if (idev->info->mem[mi].memtype == UIO_MEM_LOGICAL)
- page = virt_to_page(idev->info->mem[mi].addr);
+ vmf->page = virt_to_page(idev->info->mem[mi].addr);
else
- page = vmalloc_to_page((void*)idev->info->mem[mi].addr);
- get_page(page);
- if (type)
- *type = VM_FAULT_MINOR;
- return page;
+ vmf->page = vmalloc_to_page((void *)idev->info->mem[mi].addr);
+ get_page(vmf->page);
+
+ return 0;
}

static struct vm_operations_struct uio_vm_ops = {
.open = uio_vma_open,
.close = uio_vma_close,
- .nopage = uio_vma_nopage,
+ .fault = uio_vma_fault,
};

static int uio_mmap_physical(struct vm_area_struct *vma)
--
1.5.3.8


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