On 08/06/2012 02:44 PM, Eric W. Biederman wrote:

The percpu sctp socket counter has nothing at all to do with the sctp
proc files, and having it in the wrong initialization is confusing,
and makes network namespace support a pain.

Signed-off-by: "Eric W. Biederman" <ebied...@xmission.com>

Acked-by: Vlad Yasevich <vyasev...@gmail.com>

---
  net/sctp/protocol.c |   13 +++++++------
  1 files changed, 7 insertions(+), 6 deletions(-)

diff --git a/net/sctp/protocol.c b/net/sctp/protocol.c
index 6193d20..976d765 100644
--- a/net/sctp/protocol.c
+++ b/net/sctp/protocol.c
@@ -93,8 +93,6 @@ int sysctl_sctp_wmem[3];
  /* Set up the proc fs entry for the SCTP protocol. */
  static __init int sctp_proc_init(void)
  {
-       if (percpu_counter_init(&sctp_sockets_allocated, 0))
-               goto out_nomem;
  #ifdef CONFIG_PROC_FS
        if (!proc_net_sctp) {
                proc_net_sctp = proc_mkdir("sctp", init_net.proc_net);
@@ -125,12 +123,9 @@ out_snmp_proc_init:
                remove_proc_entry("sctp", init_net.proc_net);
        }
  out_free_percpu:
-       percpu_counter_destroy(&sctp_sockets_allocated);
  #else
        return 0;
  #endif /* CONFIG_PROC_FS */
-
-out_nomem:
        return -ENOMEM;
  }

@@ -151,7 +146,6 @@ static void sctp_proc_exit(void)
                remove_proc_entry("sctp", init_net.proc_net);
        }
  #endif
-       percpu_counter_destroy(&sctp_sockets_allocated);
  }

  /* Private helper to extract ipv4 address and stash them in
@@ -1261,6 +1255,10 @@ SCTP_STATIC __init int sctp_init(void)
        if (status)
                goto err_init_mibs;

+       status = percpu_counter_init(&sctp_sockets_allocated, 0);
+       if (status)
+               goto err_percpu_counter_init;
+
        /* Initialize proc fs directory.  */
        status = sctp_proc_init();
        if (status)
@@ -1481,6 +1479,8 @@ err_ahash_alloc:
        sctp_dbg_objcnt_exit();
        sctp_proc_exit();
  err_init_proc:
+       percpu_counter_destroy(&sctp_sockets_allocated);
+err_percpu_counter_init:
        cleanup_sctp_mibs();
  err_init_mibs:
        kmem_cache_destroy(sctp_chunk_cachep);
@@ -1521,6 +1521,7 @@ SCTP_STATIC __exit void sctp_exit(void)
                             sizeof(struct sctp_bind_hashbucket)));

        sctp_dbg_objcnt_exit();
+       percpu_counter_destroy(&sctp_sockets_allocated);
        sctp_proc_exit();
        cleanup_sctp_mibs();



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