X-Git-Url: http://pilppa.org/gitweb/gitweb.cgi?a=blobdiff_plain;f=include%2Fnet%2Fsock.h;h=6e1542da33a1ae26ddc93b80a2071401c6f73c09;hb=55d1bb9a3b0f7f791ce597086791ebe54ea4c46a;hp=5504fb9fa88a43e9cbce0cf7e4a9db54b188ec3b;hpb=45ff993d2b0b4c07038457cdf07ecf648abd3d78;p=linux-2.6-omap-h63xx.git

diff --git a/include/net/sock.h b/include/net/sock.h
index 5504fb9fa88..6e1542da33a 100644
--- a/include/net/sock.h
+++ b/include/net/sock.h
@@ -944,7 +944,7 @@ static inline int sk_filter(struct sock *sk, struct sk_buff *skb)
 		return err;
 	
 	rcu_read_lock_bh();
-	filter = sk->sk_filter;
+	filter = rcu_dereference(sk->sk_filter);
 	if (filter) {
 		unsigned int pkt_len = sk_run_filter(skb, filter->insns,
 				filter->len);
@@ -1235,14 +1235,19 @@ static inline struct sk_buff *sk_stream_alloc_pskb(struct sock *sk,
 						   gfp_t gfp)
 {
 	struct sk_buff *skb;
-	int hdr_len;
 
-	hdr_len = SKB_DATA_ALIGN(sk->sk_prot->max_header);
-	skb = alloc_skb_fclone(size + hdr_len, gfp);
+	/* The TCP header must be at least 32-bit aligned.  */
+	size = ALIGN(size, 4);
+
+	skb = alloc_skb_fclone(size + sk->sk_prot->max_header, gfp);
 	if (skb) {
 		skb->truesize += mem;
 		if (sk_stream_wmem_schedule(sk, skb->truesize)) {
-			skb_reserve(skb, hdr_len);
+			/*
+			 * Make sure that we have exactly size bytes
+			 * available to the caller, no more, no less.
+			 */
+			skb_reserve(skb, skb_tailroom(skb) - size);
 			return skb;
 		}
 		__kfree_skb(skb);