Gitweb:     
http://git.kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=107f163428b846d7cef68cb6f436788bb2f6c2e1
Commit:     107f163428b846d7cef68cb6f436788bb2f6c2e1
Parent:     78c686e9faff05f1194e892d5b1273ce24021ff6
Author:     Pavel Emelyanov <[EMAIL PROTECTED]>
AuthorDate: Wed Dec 5 21:14:28 2007 -0800
Committer:  David S. Miller <[EMAIL PROTECTED]>
CommitDate: Mon Jan 28 14:56:36 2008 -0800

    [IPV4] ROUTE: Clean up proc files creation.
    
    The rt_cache, stats/rt_cache and rt_acct(optional) files
    creation looks a bit messy. Clean this out and join them
    to other proc-related functions under the proper ifdef.
    
    The struct net * argument in a new function will help net
    namespaces patches look nicer.
    
    Signed-off-by: Pavel Emelyanov <[EMAIL PROTECTED]>
    Signed-off-by: David S. Miller <[EMAIL PROTECTED]>
---
 net/ipv4/route.c |   54 ++++++++++++++++++++++++++++++++++++++++--------------
 1 files changed, 40 insertions(+), 14 deletions(-)

diff --git a/net/ipv4/route.c b/net/ipv4/route.c
index 9736f68..1937883 100644
--- a/net/ipv4/route.c
+++ b/net/ipv4/route.c
@@ -520,6 +520,44 @@ static int ip_rt_acct_read(char *buffer, char **start, 
off_t offset,
        return length;
 }
 #endif
+
+static __init int ip_rt_proc_init(struct net *net)
+{
+       struct proc_dir_entry *pde;
+
+       pde = proc_net_fops_create(net, "rt_cache", S_IRUGO,
+                       &rt_cache_seq_fops);
+       if (!pde)
+               goto err1;
+
+       pde = create_proc_entry("rt_cache", S_IRUGO, net->proc_net_stat);
+       if (!pde)
+               goto err2;
+
+       pde->proc_fops = &rt_cpu_seq_fops;
+
+#ifdef CONFIG_NET_CLS_ROUTE
+       pde = create_proc_read_entry("rt_acct", 0, net->proc_net,
+                       ip_rt_acct_read, NULL);
+       if (!pde)
+               goto err3;
+#endif
+       return 0;
+
+#ifdef CONFIG_NET_CLS_ROUTE
+err3:
+       remove_proc_entry("rt_cache", net->proc_net_stat);
+#endif
+err2:
+       remove_proc_entry("rt_cache", net->proc_net);
+err1:
+       return -ENOMEM;
+}
+#else
+static inline int ip_rt_proc_init(struct net *net)
+{
+       return 0;
+}
 #endif /* CONFIG_PROC_FS */
 
 static __inline__ void rt_free(struct rtable *rt)
@@ -3000,20 +3038,8 @@ int __init ip_rt_init(void)
                ip_rt_secret_interval;
        add_timer(&rt_secret_timer);
 
-#ifdef CONFIG_PROC_FS
-       {
-       struct proc_dir_entry *rtstat_pde = NULL; /* keep gcc happy */
-       if (!proc_net_fops_create(&init_net, "rt_cache", S_IRUGO, 
&rt_cache_seq_fops) ||
-           !(rtstat_pde = create_proc_entry("rt_cache", S_IRUGO,
-                                            init_net.proc_net_stat))) {
-               return -ENOMEM;
-       }
-       rtstat_pde->proc_fops = &rt_cpu_seq_fops;
-       }
-#ifdef CONFIG_NET_CLS_ROUTE
-       create_proc_read_entry("rt_acct", 0, init_net.proc_net, 
ip_rt_acct_read, NULL);
-#endif
-#endif
+       if (ip_rt_proc_init(&init_net))
+               printk(KERN_ERR "Unable to create route proc files\n");
 #ifdef CONFIG_XFRM
        xfrm_init();
        xfrm4_init();
-
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