Re: [PATCH] Accounting rework: ct_extend + 64bit counters (ver. 2)

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Krzysztof Oledzki wrote:
On Fri, 6 Jun 2008, Patrick McHardy wrote:

Looks pretty good, just one or two minor things below. What would
be nice though is to reduce patch size a bit, two suggestions for
this are:

- move seq_print_acct() changes to seperate cleanup patch

But those are not only cleanup changes but changes mainly required by ct_extend implementation. The only cleanup change is that there is now one function instead of two identical. Should I first change both seq_print_counters into seq_print_acct and then merge them in an additional post-patch?

If it makes sense, sure. Those were just suggestions, if
they don't make sense, feel free to ignore them :)

struct hlist_head *nf_ct_alloc_hashtable(unsigned int *sizep, int *vmalloced)
@@ -1165,6 +1174,10 @@ int __init nf_conntrack_init(void)
     if (ret < 0)
         goto out_fini_expect;
 +    ret = nf_conntrack_acct_init();
+    if (ret < 0)
+        goto out_fini_acct;
+
     /* For use by REJECT target */
     rcu_assign_pointer(ip_ct_attach, nf_conntrack_attach);
     rcu_assign_pointer(nf_ct_destroy, destroy_conntrack);
@@ -1177,6 +1190,7 @@ int __init nf_conntrack_init(void)
      return ret;
 +out_fini_acct:

nf_conntrack_helper_fini(); ?

Hm... "helper"? You mean "acct"?

No, I mean helper. If acct initialization fails, the helper
initialization was the last thing that succeeded and you need
to properly clean it up again.

There is no nf_conntrack_acct_fini as it seems to be currently unnecessary. So, this empty out_fini_acct seems to be redundant here but I decided that adding it is cleaner than calling "goto out_fini_*expect*" from the nf_conntrack_*acct*_init error-path.

Good point, even though accounting and ct_extend are unloaded
together, for cleanness you should also unregister the extension
you've registered.
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