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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: Jason Wang <jasowang@redhat.com>
Signed-off-by: Stefano Garzarella <sgarzare@redhat.com>
Link: https://lore.kernel.org/r/20201215144256.155342-16-sgarzare@redhat.com
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
This commit is contained in:
Stefano Garzarella 2020-12-15 15:42:53 +01:00 committed by Michael S. Tsirkin
parent b240491b7a
commit 165be1f80b
1 changed files with 2 additions and 2 deletions
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4
drivers/vdpa/vdpa_sim/vdpa_sim.c
View File

@ -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);