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authorStefano Garzarella <sgarzare@redhat.com>2019-11-14 12:57:48 +0300
committerDavid S. Miller <davem@davemloft.net>2019-11-15 05:12:18 +0300
commit6a2c0962105ae8ceba182c4f616e0e41d7755591 (patch)
treeeddaccb735a16b747cb7e422c93d2319233e91ba /drivers/vhost/vsock.c
parentb1bba80a4376aef34de2b57bfb8834bd095703ed (diff)
downloadlinux-6a2c0962105ae8ceba182c4f616e0e41d7755591.tar.xz
vsock: prevent transport modules unloading
This patch adds 'module' member in the 'struct vsock_transport' in order to get/put the transport module. This prevents the module unloading while sockets are assigned to it. We increase the module refcnt when a socket is assigned to a transport, and we decrease the module refcnt when the socket is destructed. Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com> Reviewed-by: Jorgen Hansen <jhansen@vmware.com> Signed-off-by: Stefano Garzarella <sgarzare@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/vhost/vsock.c')
-rw-r--r--drivers/vhost/vsock.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/vhost/vsock.c b/drivers/vhost/vsock.c
index b235f4bbe8ea..fdda9ec625ad 100644
--- a/drivers/vhost/vsock.c
+++ b/drivers/vhost/vsock.c
@@ -386,6 +386,8 @@ static bool vhost_vsock_more_replies(struct vhost_vsock *vsock)
static struct virtio_transport vhost_transport = {
.transport = {
+ .module = THIS_MODULE,
+
.get_local_cid = vhost_transport_get_local_cid,
.init = virtio_transport_do_socket_init,