diff options
| author | Clark Williams <williams@redhat.com> | 2012-02-03 15:10:42 -0600 |
|---|---|---|
| committer | Clark Williams <williams@redhat.com> | 2012-02-03 15:10:42 -0600 |
| commit | 77f57fb93d132875acead3581bcdc5d2fefbe7a0 (patch) | |
| tree | 5db5ccf5e1754248edc790e2f37f3a2b863f0ddb /net/unix/af_unix.c | |
| parent | d28048db190097536aef2be5ee9a736bd7bb92eb (diff) | |
| parent | 69bade053d0f2ef0c8ee98af9f6699a55a8d8bb9 (diff) | |
Merge commit 'v3.2.3' into rt-3.2.3-rt10
Diffstat (limited to 'net/unix/af_unix.c')
| -rw-r--r-- | net/unix/af_unix.c | 19 |
1 files changed, 4 insertions, 15 deletions
diff --git a/net/unix/af_unix.c b/net/unix/af_unix.c index b595a3d8679f..d99678a0bece 100644 --- a/net/unix/af_unix.c +++ b/net/unix/af_unix.c @@ -1915,7 +1915,7 @@ static int unix_stream_recvmsg(struct kiocb *iocb, struct socket *sock, struct sk_buff *skb; unix_state_lock(sk); - skb = skb_dequeue(&sk->sk_receive_queue); + skb = skb_peek(&sk->sk_receive_queue); if (skb == NULL) { unix_sk(sk)->recursion_level = 0; if (copied >= target) @@ -1955,11 +1955,8 @@ static int unix_stream_recvmsg(struct kiocb *iocb, struct socket *sock, if (check_creds) { /* Never glue messages from different writers */ if ((UNIXCB(skb).pid != siocb->scm->pid) || - (UNIXCB(skb).cred != siocb->scm->cred)) { - skb_queue_head(&sk->sk_receive_queue, skb); - sk->sk_data_ready(sk, skb->len); + (UNIXCB(skb).cred != siocb->scm->cred)) break; - } } else { /* Copy credentials */ scm_set_cred(siocb->scm, UNIXCB(skb).pid, UNIXCB(skb).cred); @@ -1974,8 +1971,6 @@ static int unix_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)) { - skb_queue_head(&sk->sk_receive_queue, skb); - sk->sk_data_ready(sk, skb->len); if (copied == 0) copied = -EFAULT; break; @@ -1990,13 +1985,10 @@ static int unix_stream_recvmsg(struct kiocb *iocb, struct socket *sock, if (UNIXCB(skb).fp) unix_detach_fds(siocb->scm, skb); - /* put the skb back if we didn't use it up.. */ - if (skb->len) { - skb_queue_head(&sk->sk_receive_queue, skb); - sk->sk_data_ready(sk, skb->len); + if (skb->len) break; - } + skb_unlink(skb, &sk->sk_receive_queue); consume_skb(skb); if (siocb->scm->fp) @@ -2007,9 +1999,6 @@ static int unix_stream_recvmsg(struct kiocb *iocb, struct socket *sock, if (UNIXCB(skb).fp) siocb->scm->fp = scm_fp_dup(UNIXCB(skb).fp); - /* put message back and return */ - skb_queue_head(&sk->sk_receive_queue, skb); - sk->sk_data_ready(sk, skb->len); break; } } while (size); |