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Date: Tue, 15 Dec 2020 15:42:53 +0100 From: Stefano Garzarella <sgarzare@...hat.com> To: virtualization@...ts.linux-foundation.org Cc: Oren Duer <oren@...dia.com>, Laurent Vivier <lvivier@...hat.com>, Max Gurtovoy <mgurtovoy@...dia.com>, Randy Dunlap <rdunlap@...radead.org>, Shahaf Shuler <shahafs@...dia.com>, Stefan Hajnoczi <stefanha@...hat.com>, "Michael S. Tsirkin" <mst@...hat.com>, Eli Cohen <elic@...dia.com>, linux-kernel@...r.kernel.org, Stefano Garzarella <sgarzare@...hat.com>, Jason Wang <jasowang@...hat.com> Subject: [PATCH v4 15/18] 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@...hat.com> Signed-off-by: Stefano Garzarella <sgarzare@...hat.com> --- drivers/vdpa/vdpa_sim/vdpa_sim.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/vdpa/vdpa_sim/vdpa_sim.c b/drivers/vdpa/vdpa_sim/vdpa_sim.c index 19ff5e352782..87529899033a 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); -- 2.26.2
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