From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: linux-nfs-owner@vger.kernel.org Received: from mailhub.sw.ru ([195.214.232.25]:36630 "EHLO relay.sw.ru" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1758834Ab2FAJ6l (ORCPT ); Fri, 1 Jun 2012 05:58:41 -0400 Subject: [PATCH] NFS: hard-code init_net for NFS callback transports To: bfields@fieldses.org From: Stanislav Kinsbursky Cc: linux-nfs@vger.kernel.org, Trond.Myklebust@netapp.com, linux-kernel@vger.kernel.org, devel@openvz.org Date: Fri, 01 Jun 2012 13:55:47 +0400 Message-ID: <20120601095424.24427.74720.stgit@localhost.localdomain> MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Sender: linux-nfs-owner@vger.kernel.org List-ID: This patch set is a bug fix for Bruce's 3.5 branch. I'll rebase this for 3.4 and resend. In case of destroying mount namespace on child reaper exit, nsproxy is zeroed to the point already. So, dereferencing of it is invalid. This patch hard-code "init_net" for all network namespace references for NFS callback services. This will be fixed with proper NFS callback containerization. Signed-off-by: Stanislav Kinsbursky --- fs/nfs/callback.c | 11 +++++------ 1 files changed, 5 insertions(+), 6 deletions(-) diff --git a/fs/nfs/callback.c b/fs/nfs/callback.c index 970659d..23ff18f 100644 --- a/fs/nfs/callback.c +++ b/fs/nfs/callback.c @@ -17,7 +17,6 @@ #include #include #include -#include #include @@ -107,7 +106,7 @@ nfs4_callback_up(struct svc_serv *serv, struct rpc_xprt *xprt) { int ret; - ret = svc_create_xprt(serv, "tcp", xprt->xprt_net, PF_INET, + ret = svc_create_xprt(serv, "tcp", &init_net, PF_INET, nfs_callback_set_tcpport, SVC_SOCK_ANONYMOUS); if (ret <= 0) goto out_err; @@ -115,7 +114,7 @@ nfs4_callback_up(struct svc_serv *serv, struct rpc_xprt *xprt) dprintk("NFS: Callback listener port = %u (af %u)\n", nfs_callback_tcpport, PF_INET); - ret = svc_create_xprt(serv, "tcp", xprt->xprt_net, PF_INET6, + ret = svc_create_xprt(serv, "tcp", &init_net, PF_INET6, nfs_callback_set_tcpport, SVC_SOCK_ANONYMOUS); if (ret > 0) { nfs_callback_tcpport6 = ret; @@ -184,7 +183,7 @@ nfs41_callback_up(struct svc_serv *serv, struct rpc_xprt *xprt) * fore channel connection. * Returns the input port (0) and sets the svc_serv bc_xprt on success */ - ret = svc_create_xprt(serv, "tcp-bc", xprt->xprt_net, PF_INET, 0, + ret = svc_create_xprt(serv, "tcp-bc", &init_net, PF_INET, 0, SVC_SOCK_ANONYMOUS); if (ret < 0) { rqstp = ERR_PTR(ret); @@ -254,7 +253,7 @@ int nfs_callback_up(u32 minorversion, struct rpc_xprt *xprt) char svc_name[12]; int ret = 0; int minorversion_setup; - struct net *net = current->nsproxy->net_ns; + struct net *net = &init_net; mutex_lock(&nfs_callback_mutex); if (cb_info->users++ || cb_info->task != NULL) { @@ -330,7 +329,7 @@ void nfs_callback_down(int minorversion) cb_info->users--; if (cb_info->users == 0 && cb_info->task != NULL) { kthread_stop(cb_info->task); - svc_shutdown_net(cb_info->serv, current->nsproxy->net_ns); + svc_shutdown_net(cb_info->serv, &init_net); svc_exit_thread(cb_info->rqst); cb_info->serv = NULL; cb_info->rqst = NULL;