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authorAndi Kleen <ak@linux.intel.com>2008-08-28 01:09:54 -0700
committerDavid S. Miller <davem@davemloft.net>2008-08-28 01:09:54 -0700
commit6be547a61d6220199826070cda792297c3d15994 (patch)
tree12e5b2bff9572519968677172fa5bed9b27ca489 /net/ipv4/inet_diag.c
parent6eac56040787c3ff604fe7d48bbbb7897cd1387c (diff)
downloadop-kernel-dev-6be547a61d6220199826070cda792297c3d15994.zip
op-kernel-dev-6be547a61d6220199826070cda792297c3d15994.tar.gz
inet_diag: Add empty bucket optimization to inet_diag too
Skip quickly over empty buckets in inet_diag. Signed-off-by: Andi Kleen <ak@linux.intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ipv4/inet_diag.c')
-rw-r--r--net/ipv4/inet_diag.c6
1 files changed, 5 insertions, 1 deletions
diff --git a/net/ipv4/inet_diag.c b/net/ipv4/inet_diag.c
index c10036e..89cb047 100644
--- a/net/ipv4/inet_diag.c
+++ b/net/ipv4/inet_diag.c
@@ -782,11 +782,15 @@ skip_listen_ht:
struct sock *sk;
struct hlist_node *node;
+ num = 0;
+
+ if (hlist_empty(&head->chain) && hlist_empty(&head->twchain))
+ continue;
+
if (i > s_i)
s_num = 0;
read_lock_bh(lock);
- num = 0;
sk_for_each(sk, node, &head->chain) {
struct inet_sock *inet = inet_sk(sk);
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