On Mon, Jul 27, 2015 at 11:19 AM, Sowmini Varadhan <sowmini.varad...@oracle.com> wrote: > On (07/27/15 11:13), Cong Wang wrote: >> >> That refcnt should be released in sock destructor too, when the tcp >> connection is terminated. > > yes, but in my case, the listen socket is opened as part of > the ->init indirection in pernet_operations (thus it is a kernel socket) > and the expectation is that this listen socket, and any accept sockets > derived from it, will be closed in ->exit. > > But if the accept socket is treated as a uspace socket (thus holds a > get_net()) > then it will block cleanup_net() and the associated ->exit cleanup operations. > > This is probably not a problem for other systems like vxlan/gue/geneve etc > because they all use udp sockets, thus dont have the "accept" equivalent. >
dlm uses a kernel TCP socket too, but it allocates a new socket and calls ->accept() by itself. ;) -- To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
