netdev - [PATCH 4/8] Auto-zero the allocated sock object

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Message-ID: <472887CB.9050203@openvz.org>
Date:	Wed, 31 Oct 2007 16:48:59 +0300
From:	Pavel Emelyanov <xemul@...nvz.org>
To:	David Miller <davem@...emloft.net>
CC:	Linux Netdev List <netdev@...r.kernel.org>, devel@...nvz.org
Subject: [PATCH 4/8] Auto-zero the allocated sock object

We have a __GFP_ZERO flag that allocates a zeroed chunk of memory.
Use it in the sk_alloc() and avoid a hand-made memset().

This is a temporary patch that will help us in the nearest future :)

Signed-off-by: Pavel Emelyanov <xemul@...nvz.org>

---

diff --git a/net/core/sock.c b/net/core/sock.c
index 7c2e3db..21fc79b 100644
--- a/net/core/sock.c
+++ b/net/core/sock.c
@@ -908,10 +908,12 @@ struct sock *sk_alloc(struct net *net, int family, gfp_t priority,
 {
 	struct sock *sk;
 
+	if (zero_it)
+		priority |= __GFP_ZERO;
+
 	sk = sk_prot_alloc(prot, priority);
 	if (sk) {
 		if (zero_it) {
-			memset(sk, 0, prot->obj_size);
 			sk->sk_family = family;
 			/*
 			 * See comment in struct sock definition to understand
-- 
1.5.3.4

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