netdev - [PATCH net-next] sock_diag: add SK_MEMINFO

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Message-ID: <1338817835.2760.1815.camel@edumazet-glaptop>
Date:	Mon, 04 Jun 2012 15:50:35 +0200
From:	Eric Dumazet <eric.dumazet@...il.com>
To:	David Miller <davem@...emloft.net>
Cc:	netdev <netdev@...r.kernel.org>
Subject: [PATCH net-next] sock_diag: add SK_MEMINFO_BACKLOG

From: Eric Dumazet <edumazet@...gle.com>

Adding socket backlog len in INET_DIAG_SKMEMINFO is really useful to
diagnose various TCP problems.

Signed-off-by: Eric Dumazet <edumazet@...gle.com>
---
 include/linux/sock_diag.h |    1 +
 net/core/sock_diag.c      |    1 +
 2 files changed, 2 insertions(+)

diff --git a/include/linux/sock_diag.h b/include/linux/sock_diag.h
index db4bae7..6793fac 100644
--- a/include/linux/sock_diag.h
+++ b/include/linux/sock_diag.h
@@ -18,6 +18,7 @@ enum {
 	SK_MEMINFO_FWD_ALLOC,
 	SK_MEMINFO_WMEM_QUEUED,
 	SK_MEMINFO_OPTMEM,
+	SK_MEMINFO_BACKLOG,
 
 	SK_MEMINFO_VARS,
 };
diff --git a/net/core/sock_diag.c b/net/core/sock_diag.c
index 5fd1467..0d934ce 100644
--- a/net/core/sock_diag.c
+++ b/net/core/sock_diag.c
@@ -46,6 +46,7 @@ int sock_diag_put_meminfo(struct sock *sk, struct sk_buff *skb, int attrtype)
 	mem[SK_MEMINFO_FWD_ALLOC] = sk->sk_forward_alloc;
 	mem[SK_MEMINFO_WMEM_QUEUED] = sk->sk_wmem_queued;
 	mem[SK_MEMINFO_OPTMEM] = atomic_read(&sk->sk_omem_alloc);
+	mem[SK_MEMINFO_BACKLOG] = sk->sk_backlog.len;
 
 	return 0;
 


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