From: Stefano Garzarella Date: Tue, 15 Dec 2020 14:42:53 +0000 (+0100) Subject: vdpa_sim: use kvmalloc to allocate vdpasim->buffer X-Git-Tag: v5.15~2033^2~16 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=165be1f80b8807687f7426d3f36f1031d633e979;p=platform%2Fkernel%2Flinux-starfive.git 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 Signed-off-by: Stefano Garzarella Link: https://lore.kernel.org/r/20201215144256.155342-16-sgarzare@redhat.com Signed-off-by: Michael S. Tsirkin --- diff --git a/drivers/vdpa/vdpa_sim/vdpa_sim.c b/drivers/vdpa/vdpa_sim/vdpa_sim.c index 19ff5e3..8752989 100644 --- a/drivers/vdpa/vdpa_sim/vdpa_sim.c +++ b/drivers/vdpa/vdpa_sim/vdpa_sim.c @@ -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);