Merge branch 'osd-devel' into nfs-for-next

1 files changed, 28 insertions, 2 deletions

diff --git a/net/bluetooth/af_bluetooth.c b/net/bluetooth/af_bluetooth.c
index 117e0d161780..062124cd89cf 100644
--- a/net/bluetooth/af_bluetooth.c
+++ b/net/bluetooth/af_bluetooth.c
@@ -349,7 +349,7 @@ int bt_sock_stream_recvmsg(struct kiocb *iocb, struct socket *sock,
 		}
 
 		chunk = min_t(unsigned int, skb->len, size);
-		if (memcpy_toiovec(msg->msg_iov, skb->data, chunk)) {
+		if (skb_copy_datagram_iovec(skb, 0, msg->msg_iov, chunk)) {
 			skb_queue_head(&sk->sk_receive_queue, skb);
 			if (!copied)
 				copied = -EFAULT;
@@ -361,7 +361,33 @@ int bt_sock_stream_recvmsg(struct kiocb *iocb, struct socket *sock,
 		sock_recv_ts_and_drops(msg, sk, skb);
 
 		if (!(flags & MSG_PEEK)) {
-			skb_pull(skb, chunk);
+			int skb_len = skb_headlen(skb);
+
+			if (chunk <= skb_len) {
+				__skb_pull(skb, chunk);
+			} else {
+				struct sk_buff *frag;
+
+				__skb_pull(skb, skb_len);
+				chunk -= skb_len;
+
+				skb_walk_frags(skb, frag) {
+					if (chunk <= frag->len) {
+						/* Pulling partial data */
+						skb->len -= chunk;
+						skb->data_len -= chunk;
+						__skb_pull(frag, chunk);
+						break;
+					} else if (frag->len) {
+						/* Pulling all frag data */
+						chunk -= frag->len;
+						skb->len -= frag->len;
+						skb->data_len -= frag->len;
+						__skb_pull(frag, frag->len);
+					}
+				}
+			}
+
 			if (skb->len) {
 				skb_queue_head(&sk->sk_receive_queue, skb);
 				break;