tree eddaccb735a16b747cb7e422c93d2319233e91ba
parent b1bba80a4376aef34de2b57bfb8834bd095703ed
author Stefano Garzarella <sgarzare@redhat.com> 1573725468 +0100
committer David S. Miller <davem@davemloft.net> 1573783938 -0800

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>