[NET]: 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@openvz.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 3 insertions, 1 deletions

diff --git a/net/core/sock.c b/net/core/sock.c
index 6ee2ed104a83..b66f607fcb96 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