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| author | Libin <huawei.libin@huawei.com> | 2013-04-15 02:48:54 +0000 |
|---|---|---|
| committer | Bjorn Helgaas <bhelgaas@google.com> | 2013-04-15 14:30:44 -0600 |
| commit | 64b001758e778b2b1aad08aa1f6c5896da5f5773 (patch) | |
| tree | 5f2ee1a9ee6462696889908de3a5a5910b8a2ffb /drivers/pci/pci-sysfs.c | |
| parent | 545d7b78e0bbe686056cdd6cd431ca1946641b31 (diff) | |
| download | linux-64b001758e778b2b1aad08aa1f6c5896da5f5773.tar.bz2 | |
PCI: Use vma_pages() to replace (vm_end - vm_start) >> PAGE_SHIFT
(*->vm_end - *->vm_start) >> PAGE_SHIFT operation is implemented
as an inline funcion vma_pages() in linux/mm.h, so use it.
Signed-off-by: Libin <huawei.libin@huawei.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Diffstat (limited to 'drivers/pci/pci-sysfs.c')
| -rw-r--r-- | drivers/pci/pci-sysfs.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/pci/pci-sysfs.c b/drivers/pci/pci-sysfs.c index 9c6e9bb674ec..5b4a9d9cd200 100644 --- a/drivers/pci/pci-sysfs.c +++ b/drivers/pci/pci-sysfs.c @@ -897,7 +897,7 @@ int pci_mmap_fits(struct pci_dev *pdev, int resno, struct vm_area_struct *vma, if (pci_resource_len(pdev, resno) == 0) return 0; - nr = (vma->vm_end - vma->vm_start) >> PAGE_SHIFT; + nr = vma_pages(vma); start = vma->vm_pgoff; size = ((pci_resource_len(pdev, resno) - 1) >> PAGE_SHIFT) + 1; pci_start = (mmap_api == PCI_MMAP_PROCFS) ? |