SUNRPC: register RPC stats /proc entries in passed network namespace context

This patch makes it possible to create NFS program entry ("/proc/net/rpc/nfs")
in passed network namespace context instead of hard-coded "init_net".

Signed-off-by: Stanislav Kinsbursky <skinsbursky@parallels.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>

3 files changed, 15 insertions, 14 deletions

diff --git a/fs/nfs/inode.c b/fs/nfs/inode.c
index 65486e652943..d2c760e193f4 100644
--- a/fs/nfs/inode.c
+++ b/fs/nfs/inode.c
@@ -1625,14 +1625,14 @@ static int __init init_nfs_fs(void)
                 goto out0;
 
 #ifdef CONFIG_PROC_FS
-        rpc_proc_register(&nfs_rpcstat);
+        rpc_proc_register(&init_net, &nfs_rpcstat);
 #endif
         if ((err = register_nfs_fs()) != 0)
                 goto out;
         return 0;
 out:
 #ifdef CONFIG_PROC_FS
-        rpc_proc_unregister("nfs");
+        rpc_proc_unregister(&init_net, "nfs");
 #endif
         nfs_destroy_directcache();
 out0:
@@ -1671,7 +1671,7 @@ static void __exit exit_nfs_fs(void)
         nfs_dns_resolver_destroy();
         nfs_idmap_quit();
 #ifdef CONFIG_PROC_FS
-        rpc_proc_unregister("nfs");
+        rpc_proc_unregister(&init_net, "nfs");
 #endif
         nfs_cleanup_cb_ident_idr();
         unregister_nfs_fs();
diff --git a/include/linux/sunrpc/stats.h b/include/linux/sunrpc/stats.h
index 680471d1f28a..f625b5746bdc 100644
--- a/include/linux/sunrpc/stats.h
+++ b/include/linux/sunrpc/stats.h
@@ -58,8 +58,8 @@ void			rpc_modcount(struct inode *, int);
 #endif
 
 #ifdef CONFIG_PROC_FS
-struct proc_dir_entry * rpc_proc_register(struct rpc_stat *);
-void                    rpc_proc_unregister(const char *);
+struct proc_dir_entry * rpc_proc_register(struct net *,struct rpc_stat *);
+void                    rpc_proc_unregister(struct net *,const char *);
 void                    rpc_proc_zero(struct rpc_program *);
 struct proc_dir_entry * svc_proc_register(struct svc_stat *,
                                           const struct file_operations *);
@@ -69,8 +69,8 @@ void			svc_seq_show(struct seq_file *,
                                      const struct svc_stat *);
 #else
 
-static inline struct proc_dir_entry *rpc_proc_register(struct rpc_stat *s) { return NULL; }
-static inline void rpc_proc_unregister(const char *p) {}
+static inline struct proc_dir_entry *rpc_proc_register(struct net *, struct rpc_stat *s) { return NULL; }
+static inline void rpc_proc_unregisterstruct net *, (const char *p) {}
 static inline void rpc_proc_zero(struct rpc_program *p) {}
 
 static inline struct proc_dir_entry *svc_proc_register(struct svc_stat *s,
diff --git a/net/sunrpc/stats.c b/net/sunrpc/stats.c
index 80df89d957ba..f0f6e7ceadd5 100644
--- a/net/sunrpc/stats.c
+++ b/net/sunrpc/stats.c
@@ -213,28 +213,29 @@ EXPORT_SYMBOL_GPL(rpc_print_iostats);
  * Register/unregister RPC proc files
  */
 static inline struct proc_dir_entry *
-do_register(const char *name, void *data, const struct file_operations *fops)
+do_register(struct net *net, const char *name, void *data,
+            const struct file_operations *fops)
 {
         struct sunrpc_net *sn;
 
         dprintk("RPC:       registering /proc/net/rpc/%s\n", name);
-        sn = net_generic(&init_net, sunrpc_net_id);
+        sn = net_generic(net, sunrpc_net_id);
         return proc_create_data(name, 0, sn->proc_net_rpc, fops, data);
 }
 
 struct proc_dir_entry *
-rpc_proc_register(struct rpc_stat *statp)
+rpc_proc_register(struct net *net, struct rpc_stat *statp)
 {
-        return do_register(statp->program->name, statp, &rpc_proc_fops);
+        return do_register(net, statp->program->name, statp, &rpc_proc_fops);
 }
 EXPORT_SYMBOL_GPL(rpc_proc_register);
 
 void
-rpc_proc_unregister(const char *name)
+rpc_proc_unregister(struct net *net, const char *name)
 {
         struct sunrpc_net *sn;
 
-        sn = net_generic(&init_net, sunrpc_net_id);
+        sn = net_generic(net, sunrpc_net_id);
         remove_proc_entry(name, sn->proc_net_rpc);
 }
 EXPORT_SYMBOL_GPL(rpc_proc_unregister);
@@ -242,7 +243,7 @@ EXPORT_SYMBOL_GPL(rpc_proc_unregister);
 struct proc_dir_entry *
 svc_proc_register(struct svc_stat *statp, const struct file_operations *fops)
 {
-        return do_register(statp->program->pg_name, statp, fops);
+        return do_register(&init_net, statp->program->pg_name, statp, fops);
 }
 EXPORT_SYMBOL_GPL(svc_proc_register);