sunrpc: Add routines that allow registering per-net caches

Existing calls do the same, but for the init_net.

Signed-off-by: Pavel Emelyanov <xemul@openvz.org>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>

1 files changed, 19 insertions, 8 deletions

diff --git a/net/sunrpc/cache.c b/net/sunrpc/cache.c
index ff733dfef3b8..e84e7ddeecd4 100644
--- a/net/sunrpc/cache.c
+++ b/net/sunrpc/cache.c
@@ -34,6 +34,7 @@
 #include <linux/sunrpc/cache.h>
 #include <linux/sunrpc/stats.h>
 #include <linux/sunrpc/rpc_pipe_fs.h>
+#include <net/net_namespace.h>
 
 #define  RPCDBG_FACILITY RPCDBG_CACHE
 
@@ -1537,7 +1538,7 @@ static const struct file_operations cache_flush_operations_procfs = {
         .release        = release_flush_procfs,
 };
 
-static void remove_cache_proc_entries(struct cache_detail *cd)
+static void remove_cache_proc_entries(struct cache_detail *cd, struct net *net)
 {
         if (cd->u.procfs.proc_ent == NULL)
                 return;
@@ -1552,7 +1553,7 @@ static void remove_cache_proc_entries(struct cache_detail *cd)
 }
 
 #ifdef CONFIG_PROC_FS
-static int create_cache_proc_entries(struct cache_detail *cd)
+static int create_cache_proc_entries(struct cache_detail *cd, struct net *net)
 {
         struct proc_dir_entry *p;
 
@@ -1587,11 +1588,11 @@ static int create_cache_proc_entries(struct cache_detail *cd)
         }
         return 0;
 out_nomem:
-        remove_cache_proc_entries(cd);
+        remove_cache_proc_entries(cd, net);
         return -ENOMEM;
 }
 #else /* CONFIG_PROC_FS */
-static int create_cache_proc_entries(struct cache_detail *cd)
+static int create_cache_proc_entries(struct cache_detail *cd, struct net *net)
 {
         return 0;
 }
@@ -1602,23 +1603,33 @@ void __init cache_initialize(void)
         INIT_DELAYED_WORK_DEFERRABLE(&cache_cleaner, do_cache_clean);
 }
 
-int cache_register(struct cache_detail *cd)
+int cache_register_net(struct cache_detail *cd, struct net *net)
 {
         int ret;
 
         sunrpc_init_cache_detail(cd);
-        ret = create_cache_proc_entries(cd);
+        ret = create_cache_proc_entries(cd, net);
         if (ret)
                 sunrpc_destroy_cache_detail(cd);
         return ret;
 }
+
+int cache_register(struct cache_detail *cd)
+{
+        return cache_register_net(cd, &init_net);
+}
 EXPORT_SYMBOL_GPL(cache_register);
 
-void cache_unregister(struct cache_detail *cd)
+void cache_unregister_net(struct cache_detail *cd, struct net *net)
 {
-        remove_cache_proc_entries(cd);
+        remove_cache_proc_entries(cd, net);
         sunrpc_destroy_cache_detail(cd);
 }
+
+void cache_unregister(struct cache_detail *cd)
+{
+        cache_unregister_net(cd, &init_net);
+}
 EXPORT_SYMBOL_GPL(cache_unregister);
 
 static ssize_t cache_read_pipefs(struct file *filp, char __user *buf,