Messages in this thread Patch in this message |  | | From | Julia Lawall <> | Subject | [PATCH 2/4] vfio: vfio_pci_nvlink2: use mmgrab | Date | Sun, 29 Dec 2019 16:42:56 +0100 |
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Mmgrab was introduced in commit f1f1007644ff ("mm: add new mmgrab() helper") and most of the kernel was updated to use it. Update a remaining file.
The semantic patch that makes this change is as follows: (http://coccinelle.lip6.fr/)
<smpl> @@ expression e; @@ - atomic_inc(&e->mm_count); + mmgrab(e); </smpl>
Signed-off-by: Julia Lawall <Julia.Lawall@inria.fr>
--- drivers/vfio/pci/vfio_pci_nvlink2.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/vfio/pci/vfio_pci_nvlink2.c b/drivers/vfio/pci/vfio_pci_nvlink2.c index f2983f0f84be..43df10af7f66 100644 --- a/drivers/vfio/pci/vfio_pci_nvlink2.c +++ b/drivers/vfio/pci/vfio_pci_nvlink2.c @@ -159,7 +159,7 @@ static int vfio_pci_nvgpu_mmap(struct vfio_pci_device *vdev, data->useraddr = vma->vm_start; data->mm = current->mm; - atomic_inc(&data->mm->mm_count); + mmgrab(data->mm); ret = (int) mm_iommu_newdev(data->mm, data->useraddr, vma_pages(vma), data->gpu_hpa, &data->mem);
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