From: Pavel Emelyanov <xemul@parallels.com>
To: "J. Bruce Fields" <bfields@fieldses.org>
Cc: Chuck Lever <chuck.lever@oracle.com>,
Trond Myklebust <Trond.Myklebust@netapp.com>,
linux-nfs@vger.kernel.org
Subject: [PATCH 8/9] sunrpc: Make the /proc/net/rpc appear in net namespaces
Date: Mon, 27 Sep 2010 14:01:58 +0400 [thread overview]
Message-ID: <4CA06B96.2090707@parallels.com> (raw)
In-Reply-To: <4CA06A63.6090507@parallels.com>
Signed-off-by: Pavel Emelyanov <xemul@openvz.org>
---
include/linux/sunrpc/stats.h | 23 ++++++++++++++-------
net/sunrpc/cache.c | 11 +++++++--
net/sunrpc/netns.h | 1 +
net/sunrpc/stats.c | 43 ++++++++++++++++++++++++-----------------
net/sunrpc/sunrpc_syms.c | 16 +++++++++-----
5 files changed, 59 insertions(+), 35 deletions(-)
diff --git a/include/linux/sunrpc/stats.h b/include/linux/sunrpc/stats.h
index 5fa0f20..680471d 100644
--- a/include/linux/sunrpc/stats.h
+++ b/include/linux/sunrpc/stats.h
@@ -38,8 +38,21 @@ struct svc_stat {
rpcbadclnt;
};
-void rpc_proc_init(void);
-void rpc_proc_exit(void);
+struct net;
+#ifdef CONFIG_PROC_FS
+int rpc_proc_init(struct net *);
+void rpc_proc_exit(struct net *);
+#else
+static inline int rpc_proc_init(struct net *net)
+{
+ return 0;
+}
+
+static inline void rpc_proc_exit(struct net *net)
+{
+}
+#endif
+
#ifdef MODULE
void rpc_modcount(struct inode *, int);
#endif
@@ -54,9 +67,6 @@ void svc_proc_unregister(const char *);
void svc_seq_show(struct seq_file *,
const struct svc_stat *);
-
-extern struct proc_dir_entry *proc_net_rpc;
-
#else
static inline struct proc_dir_entry *rpc_proc_register(struct rpc_stat *s) { return NULL; }
@@ -69,9 +79,6 @@ static inline void svc_proc_unregister(const char *p) {}
static inline void svc_seq_show(struct seq_file *seq,
const struct svc_stat *st) {}
-
-#define proc_net_rpc NULL
-
#endif
#endif /* _LINUX_SUNRPC_STATS_H */
diff --git a/net/sunrpc/cache.c b/net/sunrpc/cache.c
index e84e7dd..e20968a 100644
--- a/net/sunrpc/cache.c
+++ b/net/sunrpc/cache.c
@@ -34,7 +34,7 @@
#include <linux/sunrpc/cache.h>
#include <linux/sunrpc/stats.h>
#include <linux/sunrpc/rpc_pipe_fs.h>
-#include <net/net_namespace.h>
+#include "netns.h"
#define RPCDBG_FACILITY RPCDBG_CACHE
@@ -1540,6 +1540,8 @@ static const struct file_operations cache_flush_operations_procfs = {
static void remove_cache_proc_entries(struct cache_detail *cd, struct net *net)
{
+ struct sunrpc_net *sn;
+
if (cd->u.procfs.proc_ent == NULL)
return;
if (cd->u.procfs.flush_ent)
@@ -1549,15 +1551,18 @@ static void remove_cache_proc_entries(struct cache_detail *cd, struct net *net)
if (cd->u.procfs.content_ent)
remove_proc_entry("content", cd->u.procfs.proc_ent);
cd->u.procfs.proc_ent = NULL;
- remove_proc_entry(cd->name, proc_net_rpc);
+ sn = net_generic(net, sunrpc_net_id);
+ remove_proc_entry(cd->name, sn->proc_net_rpc);
}
#ifdef CONFIG_PROC_FS
static int create_cache_proc_entries(struct cache_detail *cd, struct net *net)
{
struct proc_dir_entry *p;
+ struct sunrpc_net *sn;
- cd->u.procfs.proc_ent = proc_mkdir(cd->name, proc_net_rpc);
+ sn = net_generic(net, sunrpc_net_id);
+ cd->u.procfs.proc_ent = proc_mkdir(cd->name, sn->proc_net_rpc);
if (cd->u.procfs.proc_ent == NULL)
goto out_nomem;
cd->u.procfs.channel_ent = NULL;
diff --git a/net/sunrpc/netns.h b/net/sunrpc/netns.h
index b2d18af..e52ce89 100644
--- a/net/sunrpc/netns.h
+++ b/net/sunrpc/netns.h
@@ -5,6 +5,7 @@
#include <net/netns/generic.h>
struct sunrpc_net {
+ struct proc_dir_entry *proc_net_rpc;
};
extern int sunrpc_net_id;
diff --git a/net/sunrpc/stats.c b/net/sunrpc/stats.c
index ea1046f..f71a731 100644
--- a/net/sunrpc/stats.c
+++ b/net/sunrpc/stats.c
@@ -22,11 +22,10 @@
#include <linux/sunrpc/clnt.h>
#include <linux/sunrpc/svcsock.h>
#include <linux/sunrpc/metrics.h>
-#include <net/net_namespace.h>
-#define RPCDBG_FACILITY RPCDBG_MISC
+#include "netns.h"
-struct proc_dir_entry *proc_net_rpc = NULL;
+#define RPCDBG_FACILITY RPCDBG_MISC
/*
* Get RPC client stats
@@ -218,10 +217,11 @@ EXPORT_SYMBOL_GPL(rpc_print_iostats);
static inline struct proc_dir_entry *
do_register(const char *name, void *data, const struct file_operations *fops)
{
- rpc_proc_init();
- dprintk("RPC: registering /proc/net/rpc/%s\n", name);
+ struct sunrpc_net *sn;
- return proc_create_data(name, 0, proc_net_rpc, fops, data);
+ dprintk("RPC: registering /proc/net/rpc/%s\n", name);
+ sn = net_generic(&init_net, sunrpc_net_id);
+ return proc_create_data(name, 0, sn->proc_net_rpc, fops, data);
}
struct proc_dir_entry *
@@ -234,7 +234,10 @@ EXPORT_SYMBOL_GPL(rpc_proc_register);
void
rpc_proc_unregister(const char *name)
{
- remove_proc_entry(name, proc_net_rpc);
+ struct sunrpc_net *sn;
+
+ sn = net_generic(&init_net, sunrpc_net_id);
+ remove_proc_entry(name, sn->proc_net_rpc);
}
EXPORT_SYMBOL_GPL(rpc_proc_unregister);
@@ -248,25 +251,29 @@ EXPORT_SYMBOL_GPL(svc_proc_register);
void
svc_proc_unregister(const char *name)
{
- remove_proc_entry(name, proc_net_rpc);
+ struct sunrpc_net *sn;
+
+ sn = net_generic(&init_net, sunrpc_net_id);
+ remove_proc_entry(name, sn->proc_net_rpc);
}
EXPORT_SYMBOL_GPL(svc_proc_unregister);
-void
-rpc_proc_init(void)
+int rpc_proc_init(struct net *net)
{
+ struct sunrpc_net *sn;
+
dprintk("RPC: registering /proc/net/rpc\n");
- if (!proc_net_rpc)
- proc_net_rpc = proc_mkdir("rpc", init_net.proc_net);
+ sn = net_generic(net, sunrpc_net_id);
+ sn->proc_net_rpc = proc_mkdir("rpc", net->proc_net);
+ if (sn->proc_net_rpc == NULL)
+ return -ENOMEM;
+
+ return 0;
}
-void
-rpc_proc_exit(void)
+void rpc_proc_exit(struct net *net)
{
dprintk("RPC: unregistering /proc/net/rpc\n");
- if (proc_net_rpc) {
- proc_net_rpc = NULL;
- remove_proc_entry("rpc", init_net.proc_net);
- }
+ remove_proc_entry("rpc", net->proc_net);
}
diff --git a/net/sunrpc/sunrpc_syms.c b/net/sunrpc/sunrpc_syms.c
index faa2322..c076af8 100644
--- a/net/sunrpc/sunrpc_syms.c
+++ b/net/sunrpc/sunrpc_syms.c
@@ -28,11 +28,21 @@ int sunrpc_net_id;
static __net_init int sunrpc_init_net(struct net *net)
{
+ int err;
+
+ err = rpc_proc_init(net);
+ if (err)
+ goto err_proc;
+
return 0;
+
+err_proc:
+ return err;
}
static __net_exit void sunrpc_exit_net(struct net *net)
{
+ rpc_proc_exit(net);
}
static struct pernet_operations sunrpc_net_ops = {
@@ -67,9 +77,6 @@ init_sunrpc(void)
#ifdef RPC_DEBUG
rpc_register_sysctl();
#endif
-#ifdef CONFIG_PROC_FS
- rpc_proc_init();
-#endif
cache_register(&ip_map_cache);
cache_register(&unix_gid_cache);
svc_init_xprt_sock(); /* svc sock transport */
@@ -101,9 +108,6 @@ cleanup_sunrpc(void)
#ifdef RPC_DEBUG
rpc_unregister_sysctl();
#endif
-#ifdef CONFIG_PROC_FS
- rpc_proc_exit();
-#endif
rcu_barrier(); /* Wait for completion of call_rcu()'s */
}
MODULE_LICENSE("GPL");
--
1.5.5.6
next prev parent reply other threads:[~2010-09-27 10:02 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-09-27 9:56 [PATCH v2 0/9] sunrpc: Virtualize ip_map_cache Pavel Emelyanov
2010-09-27 9:57 ` [PATCH 1/9] sunrpc: Pass the ip_map_parse's cd to lower calls Pavel Emelyanov
2010-09-27 9:58 ` [PATCH 2/9] sunrpc: Make xprt auth cache release work with the xprt Pavel Emelyanov
2010-09-27 9:59 ` [PATCH 3/9] sunrpc: Pass xprt to cached get/put routines Pavel Emelyanov
2010-09-27 9:59 ` [PATCH 4/9] sunrpc: Add net to pure API calls Pavel Emelyanov
2010-09-27 10:00 ` [PATCH 5/9] sunrpc: Add routines that allow registering per-net caches Pavel Emelyanov
2010-09-27 10:00 ` [PATCH 6/9] sunrpc: Tag svc_xprt with net Pavel Emelyanov
2010-09-27 10:01 ` [PATCH 7/9] sunrpc: The per-net skeleton Pavel Emelyanov
2010-09-27 10:01 ` Pavel Emelyanov [this message]
2010-09-27 10:02 ` [PATCH 9/9] sunrpc: Make the ip_map_cache be per-net Pavel Emelyanov
2010-09-27 14:07 ` [PATCH v2 0/9] sunrpc: Virtualize ip_map_cache J. Bruce Fields
-- strict thread matches above, loose matches on Subject: below --
2010-09-15 12:23 [PATCH 0/9] sunrpc: Start making sunrpc work in containers Pavel Emelyanov
2010-09-15 12:28 ` [PATCH 8/9] sunrpc: Make the /proc/net/rpc appear in net namespaces Pavel Emelyanov
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