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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 /include/net/af_vsock.h
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 'include/net/af_vsock.h')
-rw-r--r--include/net/af_vsock.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/include/net/af_vsock.h b/include/net/af_vsock.h
index cf5c3691251b..4206dc6d813f 100644
--- a/include/net/af_vsock.h
+++ b/include/net/af_vsock.h
@@ -100,6 +100,8 @@ struct vsock_transport_send_notify_data {
#define VSOCK_TRANSPORT_F_DGRAM 0x00000004
struct vsock_transport {
+ struct module *module;
+
/* Initialize/tear-down socket. */
int (*init)(struct vsock_sock *, struct vsock_sock *);
void (*destruct)(struct vsock_sock *);