linux-kernel - [PATCH v4 08/10] NFS: make nfs_callback

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Date:	Mon, 20 Aug 2012 18:00:41 +0400
From:	Stanislav Kinsbursky <skinsbursky@...allels.com>
To:	Trond.Myklebust@...app.com
Cc:	bfields@...ldses.org, linux-nfs@...r.kernel.org,
	linux-kernel@...r.kernel.org, devel@...nvz.org
Subject: [PATCH v4 08/10] NFS: make nfs_callback_tcpport6 per network context

Signed-off-by: Stanislav Kinsbursky <skinsbursky@...allels.com>
---
 fs/nfs/callback.c  |    6 ++----
 fs/nfs/callback.h  |    1 -
 fs/nfs/netns.h     |    1 +
 fs/nfs/nfs4state.c |    2 +-
 4 files changed, 4 insertions(+), 6 deletions(-)

diff --git a/fs/nfs/callback.c b/fs/nfs/callback.c
index 94aa9d8..baafa0f 100644
--- a/fs/nfs/callback.c
+++ b/fs/nfs/callback.c
@@ -38,8 +38,6 @@ static struct nfs_callback_data nfs_callback_info[NFS4_MAX_MINOR_VERSION + 1];
 static DEFINE_MUTEX(nfs_callback_mutex);
 static struct svc_program nfs4_callback_program;
 
-unsigned short nfs_callback_tcpport6;
-
 static int nfs4_callback_up_net(struct svc_serv *serv, struct net *net)
 {
 	int ret;
@@ -56,9 +54,9 @@ static int nfs4_callback_up_net(struct svc_serv *serv, struct net *net)
 	ret = svc_create_xprt(serv, "tcp", net, PF_INET6,
 				nfs_callback_set_tcpport, SVC_SOCK_ANONYMOUS);
 	if (ret > 0) {
-		nfs_callback_tcpport6 = ret;
+		nn->nfs_callback_tcpport6 = ret;
 		dprintk("NFS: Callback listener port = %u (af %u, net %p)\n",
-				nfs_callback_tcpport6, PF_INET6, net);
+				nn->nfs_callback_tcpport6, PF_INET6, net);
 	} else if (ret != -EAFNOSUPPORT)
 		goto out_err;
 	return 0;
diff --git a/fs/nfs/callback.h b/fs/nfs/callback.h
index 1c167d1..c07a8d4 100644
--- a/fs/nfs/callback.h
+++ b/fs/nfs/callback.h
@@ -208,6 +208,5 @@ extern int nfs4_set_callback_sessionid(struct nfs_client *clp);
 #define NFS41_BC_MAX_CALLBACKS 1
 
 extern unsigned int nfs_callback_set_tcpport;
-extern unsigned short nfs_callback_tcpport6;
 
 #endif /* __LINUX_FS_NFS_CALLBACK_H */
diff --git a/fs/nfs/netns.h b/fs/nfs/netns.h
index 1538d3a..137238b 100644
--- a/fs/nfs/netns.h
+++ b/fs/nfs/netns.h
@@ -23,6 +23,7 @@ struct nfs_net {
 #if IS_ENABLED(CONFIG_NFS_V4)
 	struct idr cb_ident_idr; /* Protected by nfs_client_lock */
 	unsigned short nfs_callback_tcpport;
+	unsigned short nfs_callback_tcpport6;
 #endif
 	spinlock_t nfs_client_lock;
 	struct timespec boot_time;
diff --git a/fs/nfs/nfs4state.c b/fs/nfs/nfs4state.c
index afd06b4..2042bf0 100644
--- a/fs/nfs/nfs4state.c
+++ b/fs/nfs/nfs4state.c
@@ -80,7 +80,7 @@ int nfs4_init_clientid(struct nfs_client *clp, struct rpc_cred *cred)
 		goto do_confirm;
 	port = nn->nfs_callback_tcpport;
 	if (clp->cl_addr.ss_family == AF_INET6)
-		port = nfs_callback_tcpport6;
+		port = nn->nfs_callback_tcpport6;
 
 	status = nfs4_proc_setclientid(clp, NFS4_CALLBACK, port, cred, &clid);
 	if (status != 0)

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