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author | Pavel Emelyanov <xemul@parallels.com> | 2010-09-27 14:01:58 +0400 |
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committer | J. Bruce Fields <bfields@redhat.com> | 2010-09-27 10:16:12 -0400 |
commit | 4f42d0d53ca4737f82937edb0efc83564c124853 (patch) | |
tree | 487cbc8e7bc9ed643fbbfb2216230c15ed3b1552 | |
parent | 2f72c9b73730c335381b13e2bd221abe1acea394 (diff) | |
download | kernel_goldelico_gta04-4f42d0d53ca4737f82937edb0efc83564c124853.zip kernel_goldelico_gta04-4f42d0d53ca4737f82937edb0efc83564c124853.tar.gz kernel_goldelico_gta04-4f42d0d53ca4737f82937edb0efc83564c124853.tar.bz2 |
sunrpc: Make the /proc/net/rpc appear in net namespaces
Signed-off-by: Pavel Emelyanov <xemul@openvz.org>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
-rw-r--r-- | include/linux/sunrpc/stats.h | 23 | ||||
-rw-r--r-- | net/sunrpc/cache.c | 11 | ||||
-rw-r--r-- | net/sunrpc/netns.h | 1 | ||||
-rw-r--r-- | net/sunrpc/stats.c | 43 | ||||
-rw-r--r-- | 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"); |