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Subject[PATCH 1/2] SUNRPC: register RPC stats /proc entries in passed network namespace context
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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>

---
fs/nfs/inode.c | 6 +++---
include/linux/sunrpc/stats.h | 8 ++++----
net/sunrpc/stats.c | 15 ++++++++-------
3 files changed, 15 insertions(+), 14 deletions(-)
diff --git a/fs/nfs/inode.c b/fs/nfs/inode.c
index 98b2508..5cad6c5 100644
--- a/fs/nfs/inode.c
+++ b/fs/nfs/inode.c
@@ -1623,14 +1623,14 @@ 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:
@@ -1669,7 +1669,7 @@ 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 680471d..f625b57 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 80df89d..f0f6e7c 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);



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