Commit 165be1f8 authored by Stefano Garzarella's avatar Stefano Garzarella Committed by Michael S. Tsirkin
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vdpa_sim: use kvmalloc to allocate vdpasim->buffer 



The next patch will make the buffer size configurable from each
device.
Since the buffer could be larger than a page, we use kvmalloc()
instead of kmalloc().

Acked-by: default avatarJason Wang <jasowang@redhat.com>
Signed-off-by: default avatarStefano Garzarella <sgarzare@redhat.com>
Link: https://lore.kernel.org/r/20201215144256.155342-16-sgarzare@redhat.com


Signed-off-by: default avatarMichael S. Tsirkin <mst@redhat.com>
parent b240491b

drivers/vdpa/vdpa_sim/vdpa_sim.c

+2 −2
Original line number Diff line number Diff line
@@ -418,7 +418,7 @@ static struct vdpasim *vdpasim_create(struct vdpasim_dev_attr *dev_attr) 
	if (!vdpasim->iommu)

		goto err_iommu;



	vdpasim->buffer = kmalloc(PAGE_SIZE, GFP_KERNEL);

	vdpasim->buffer = kvmalloc(PAGE_SIZE, GFP_KERNEL);

	if (!vdpasim->buffer)

		goto err_iommu;
@@ -707,7 +707,7 @@ static void vdpasim_free(struct vdpa_device *vdpa) 
	struct vdpasim *vdpasim = vdpa_to_sim(vdpa);



	cancel_work_sync(&vdpasim->work);

	kfree(vdpasim->buffer);

	kvfree(vdpasim->buffer);

	if (vdpasim->iommu)

		vhost_iotlb_free(vdpasim->iommu);

	kfree(vdpasim->vqs);

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