diff options
author | Linus Torvalds <torvalds@linux-foundation.org> | 2010-10-23 11:47:02 -0700 |
---|---|---|
committer | Linus Torvalds <torvalds@linux-foundation.org> | 2010-10-23 11:47:02 -0700 |
commit | 5f05647dd81c11a6a165ccc8f0c1370b16f3bcb0 (patch) | |
tree | 7851ef1c93aa1aba7ef327ca4b75fd35e6d10f29 /net/bluetooth/rfcomm/sock.c | |
parent | 02f36038c568111ad4fc433f6fa760ff5e38fab4 (diff) | |
parent | ec37a48d1d16c30b655ac5280209edf52a6775d4 (diff) |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next-2.6: (1699 commits)
bnx2/bnx2x: Unsupported Ethtool operations should return -EINVAL.
vlan: Calling vlan_hwaccel_do_receive() is always valid.
tproxy: use the interface primary IP address as a default value for --on-ip
tproxy: added IPv6 support to the socket match
cxgb3: function namespace cleanup
tproxy: added IPv6 support to the TPROXY target
tproxy: added IPv6 socket lookup function to nf_tproxy_core
be2net: Changes to use only priority codes allowed by f/w
tproxy: allow non-local binds of IPv6 sockets if IP_TRANSPARENT is enabled
tproxy: added tproxy sockopt interface in the IPV6 layer
tproxy: added udp6_lib_lookup function
tproxy: added const specifiers to udp lookup functions
tproxy: split off ipv6 defragmentation to a separate module
l2tp: small cleanup
nf_nat: restrict ICMP translation for embedded header
can: mcp251x: fix generation of error frames
can: mcp251x: fix endless loop in interrupt handler if CANINTF_MERRF is set
can-raw: add msg_flags to distinguish local traffic
9p: client code cleanup
rds: make local functions/variables static
...
Fix up conflicts in net/core/dev.c, drivers/net/pcmcia/smc91c92_cs.c and
drivers/net/wireless/ath/ath9k/debug.c as per David
Diffstat (limited to 'net/bluetooth/rfcomm/sock.c')
-rw-r--r-- | net/bluetooth/rfcomm/sock.c | 104 |
1 files changed, 6 insertions, 98 deletions
diff --git a/net/bluetooth/rfcomm/sock.c b/net/bluetooth/rfcomm/sock.c index 194b3a04cfd..aec505f934d 100644 --- a/net/bluetooth/rfcomm/sock.c +++ b/net/bluetooth/rfcomm/sock.c @@ -621,121 +621,29 @@ static int rfcomm_sock_sendmsg(struct kiocb *iocb, struct socket *sock, return sent; } -static long rfcomm_sock_data_wait(struct sock *sk, long timeo) -{ - DECLARE_WAITQUEUE(wait, current); - - add_wait_queue(sk_sleep(sk), &wait); - for (;;) { - set_current_state(TASK_INTERRUPTIBLE); - - if (!skb_queue_empty(&sk->sk_receive_queue) || - sk->sk_err || - (sk->sk_shutdown & RCV_SHUTDOWN) || - signal_pending(current) || - !timeo) - break; - - set_bit(SOCK_ASYNC_WAITDATA, &sk->sk_socket->flags); - release_sock(sk); - timeo = schedule_timeout(timeo); - lock_sock(sk); - clear_bit(SOCK_ASYNC_WAITDATA, &sk->sk_socket->flags); - } - - __set_current_state(TASK_RUNNING); - remove_wait_queue(sk_sleep(sk), &wait); - return timeo; -} - static int rfcomm_sock_recvmsg(struct kiocb *iocb, struct socket *sock, struct msghdr *msg, size_t size, int flags) { struct sock *sk = sock->sk; struct rfcomm_dlc *d = rfcomm_pi(sk)->dlc; - int err = 0; - size_t target, copied = 0; - long timeo; + int len; if (test_and_clear_bit(RFCOMM_DEFER_SETUP, &d->flags)) { rfcomm_dlc_accept(d); return 0; } - if (flags & MSG_OOB) - return -EOPNOTSUPP; - - msg->msg_namelen = 0; - - BT_DBG("sk %p size %zu", sk, size); + len = bt_sock_stream_recvmsg(iocb, sock, msg, size, flags); lock_sock(sk); + if (!(flags & MSG_PEEK) && len > 0) + atomic_sub(len, &sk->sk_rmem_alloc); - target = sock_rcvlowat(sk, flags & MSG_WAITALL, size); - timeo = sock_rcvtimeo(sk, flags & MSG_DONTWAIT); - - do { - struct sk_buff *skb; - int chunk; - - skb = skb_dequeue(&sk->sk_receive_queue); - if (!skb) { - if (copied >= target) - break; - - if ((err = sock_error(sk)) != 0) - break; - if (sk->sk_shutdown & RCV_SHUTDOWN) - break; - - err = -EAGAIN; - if (!timeo) - break; - - timeo = rfcomm_sock_data_wait(sk, timeo); - - if (signal_pending(current)) { - err = sock_intr_errno(timeo); - goto out; - } - continue; - } - - 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); - if (!copied) - copied = -EFAULT; - break; - } - copied += chunk; - size -= chunk; - - sock_recv_ts_and_drops(msg, sk, skb); - - if (!(flags & MSG_PEEK)) { - atomic_sub(chunk, &sk->sk_rmem_alloc); - - skb_pull(skb, chunk); - if (skb->len) { - skb_queue_head(&sk->sk_receive_queue, skb); - break; - } - kfree_skb(skb); - - } else { - /* put message back and return */ - skb_queue_head(&sk->sk_receive_queue, skb); - break; - } - } while (size); - -out: if (atomic_read(&sk->sk_rmem_alloc) <= (sk->sk_rcvbuf >> 2)) rfcomm_dlc_unthrottle(rfcomm_pi(sk)->dlc); - release_sock(sk); - return copied ? : err; + + return len; } static int rfcomm_sock_setsockopt_old(struct socket *sock, int optname, char __user *optval, unsigned int optlen) |