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authorStefano Garzarella <sgarzare@redhat.com>2021-03-15 17:34:43 +0100
committerMichael S. Tsirkin <mst@redhat.com>2021-05-03 04:55:53 -0400
commitbc433e5e0d42d7892dcefb65686c9f1df126923a (patch)
treeba1da0720fc678033fadd91874a7c822fdc6c4b3 /drivers/vdpa/vdpa_sim
parent14c9ac05ce09c8c6a89ffcca6ffb68707cba36c2 (diff)
vdpa_sim: cleanup kiovs in vdpasim_free()
vringh_getdesc_iotlb() allocates memory to store the kvec, that is freed with vringh_kiov_cleanup(). vringh_getdesc_iotlb() is able to reuse a kvec previously allocated, so in order to avoid to allocate the kvec for each request, we are not calling vringh_kiov_cleanup() when we finished to handle a request, but we should call it when we free the entire device. Acked-by: Jason Wang <jasowang@redhat.com> Signed-off-by: Stefano Garzarella <sgarzare@redhat.com> Link: https://lore.kernel.org/r/20210315163450.254396-8-sgarzare@redhat.com Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Diffstat (limited to 'drivers/vdpa/vdpa_sim')
-rw-r--r--drivers/vdpa/vdpa_sim/vdpa_sim.c7
1 files changed, 7 insertions, 0 deletions
diff --git a/drivers/vdpa/vdpa_sim/vdpa_sim.c b/drivers/vdpa/vdpa_sim/vdpa_sim.c
index a92c08880098..14dc2d3d983e 100644
--- a/drivers/vdpa/vdpa_sim/vdpa_sim.c
+++ b/drivers/vdpa/vdpa_sim/vdpa_sim.c
@@ -562,8 +562,15 @@ static int vdpasim_dma_unmap(struct vdpa_device *vdpa, u64 iova, u64 size)
static void vdpasim_free(struct vdpa_device *vdpa)
{
struct vdpasim *vdpasim = vdpa_to_sim(vdpa);
+ int i;
cancel_work_sync(&vdpasim->work);
+
+ for (i = 0; i < vdpasim->dev_attr.nvqs; i++) {
+ vringh_kiov_cleanup(&vdpasim->vqs[i].out_iov);
+ vringh_kiov_cleanup(&vdpasim->vqs[i].in_iov);
+ }
+
put_iova_domain(&vdpasim->iova);
iova_cache_put();
kvfree(vdpasim->buffer);