diff options
author | Linus Torvalds <torvalds@linux-foundation.org> | 2012-05-21 10:03:46 -0700 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2012-05-21 10:03:46 -0700 |
commit | cb62ab71fe2b16e8203a0f0a2ef4eda23d761338 (patch) | |
tree | 536ba39658e47d511a489c52f7aac60cd78967e5 /net/socket.c | |
parent | 31ed8e6f93a27304c9e157dab0267772cd94eaad (diff) | |
parent | 74863948f925d9f3bb4e3d3a783e49e9c662d839 (diff) |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next
Pull networking changes from David Miller:
1) Get rid of the error prone NLA_PUT*() macros that used an embedded
goto.
2) Kill off the token-ring and MCA networking drivers, from Paul
Gortmaker.
3) Reduce high-order allocations made by datagram AF_UNIX sockets, from
Eric Dumazet.
4) Add PTP hardware clock support to IGB and IXGBE, from Richard
Cochran and Jacob Keller.
5) Allow users to query timestamping capabilities of a card via
ethtool, from Richard Cochran.
6) Add loadbalance mode to the teaming driver, from Jiri Pirko. Part
of this is that we can now have BPF filters not attached to sockets,
and the loadbalancing function is calculated using one.
7) Francois Romieu went through the network drivers removing gratuitous
uses of netdev->base_addr, perhaps some day we can remove it
completely but it's used for ISA probing still.
8) Add a BPF JIT for sparc. I know, who cares, right? :-)
9) Move networking sysctl registry away from using the compatability
mode interfaces in the sysctl code. From Eric W Biederman.
10) Pavel Emelyanov added a way to save and restore TCP socket state via
TCP_REPAIR, TCP_REPAIR_QUEUE, and TCP_QUEUE_SEQ socket options as
well as a way to forcefully bind a socket to a port via the
sk->sk_reuse value SK_FORCE_REUSE. There is also a
TCP_REPAIR_OPTIONS which allows to reinstante the TCP options
enabled on the connection.
11) Several enhancements from Eric Dumazet that, in particular, can
enhance splice performance on TCP sockets significantly.
a) Reset the offset of the per-socket sendmsg page when we know
we're the only use of the page in linear_to_page().
b) Add facilities such that skb->data can be backed a page rather
than SLAB kmalloc'd memory. In particular devices which were
receiving into linear RX buffers can now end up providing paged
data.
The big result is that code like splice and GRO do not have to copy
any more.
12) Allow a pure sender to more gracefully handle ACK backlogs in TCP.
What can happen at high rates is that the sender hasn't grown his
receive buffer limits at all (he's not receiving data so really
doesn't need to), but the non-data ACKs consume receive buffer
space.
sk_add_backlog() is too aggressive in dropping frames in this case,
so relax it's requirements by using the receive buffer plus the send
buffer limit as the backlog limit instead of just the former.
Also from Eric Dumazet.
13) Add ipv6 support to L2TP, from Benjamin LaHaise, James Chapman, and
Chris Elston.
14) Implement TCP early retransmit (RFC 5827), from Yuchung Cheng.
Basically, we can start fast retransmit before hiting the dupack
threshold under certain conditions.
15) New CODEL active queue management packet scheduler, from Eric
Dumazet based upon initial work by Dave Taht.
Basically, the big feature is that packets are dropped (or ECN bits
are set) based upon how long packets live in the queue, rather than
the queue length (which is what RED uses).
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next: (1341 commits)
drivers/net/stmmac: seq_file fix memory leak
ipv6/exthdrs: strict Pad1 and PadN check
USB: qmi_wwan: Add ZTE (Vodafone) K3520-Z
USB: qmi_wwan: Add ZTE (Vodafone) K3765-Z
USB: qmi_wwan: Make forced int 4 whitelist generic
net/ipv4: replace simple_strtoul with kstrtoul
net/ipv4/ipconfig: neaten __setup placement
net: qmi_wwan: Add Vodafone/Huawei K5005 support
net: cdc_ether: Add ZTE WWAN matches before generic Ethernet
ipv6: use skb coalescing in reassembly
ipv4: use skb coalescing in defragmentation
net: introduce skb_try_coalesce()
net:ipv6:fixed space issues relating to operators.
net:ipv6:fixed a trailing white space issue.
ipv6: disable GSO on sockets hitting dst_allfrag
tg3: use netdev_alloc_frag() API
net: napi_frags_skb() is static
ppp: avoid false drop_monitor false positives
ipv6: bool/const conversions phase2
ipx: Remove spurious NULL checking in ipx_ioctl().
...
Diffstat (limited to 'net/socket.c')
-rw-r--r-- | net/socket.c | 64 |
1 files changed, 32 insertions, 32 deletions
diff --git a/net/socket.c b/net/socket.c index 851edcd6b09..2a2898ce596 100644 --- a/net/socket.c +++ b/net/socket.c @@ -1234,8 +1234,7 @@ int __sock_create(struct net *net, int family, int type, int protocol, */ sock = sock_alloc(); if (!sock) { - if (net_ratelimit()) - printk(KERN_WARNING "socket: no more sockets\n"); + net_warn_ratelimited("socket: no more sockets\n"); return -ENFILE; /* Not exactly a match, but its the closest posix thing */ } @@ -1479,7 +1478,7 @@ SYSCALL_DEFINE2(listen, int, fd, int, backlog) sock = sockfd_lookup_light(fd, &err, &fput_needed); if (sock) { somaxconn = sock_net(sock->sk)->core.sysctl_somaxconn; - if ((unsigned)backlog > somaxconn) + if ((unsigned int)backlog > somaxconn) backlog = somaxconn; err = security_socket_listen(sock, backlog); @@ -1691,7 +1690,7 @@ SYSCALL_DEFINE3(getpeername, int, fd, struct sockaddr __user *, usockaddr, */ SYSCALL_DEFINE6(sendto, int, fd, void __user *, buff, size_t, len, - unsigned, flags, struct sockaddr __user *, addr, + unsigned int, flags, struct sockaddr __user *, addr, int, addr_len) { struct socket *sock; @@ -1738,7 +1737,7 @@ out: */ SYSCALL_DEFINE4(send, int, fd, void __user *, buff, size_t, len, - unsigned, flags) + unsigned int, flags) { return sys_sendto(fd, buff, len, flags, NULL, 0); } @@ -1750,7 +1749,7 @@ SYSCALL_DEFINE4(send, int, fd, void __user *, buff, size_t, len, */ SYSCALL_DEFINE6(recvfrom, int, fd, void __user *, ubuf, size_t, size, - unsigned, flags, struct sockaddr __user *, addr, + unsigned int, flags, struct sockaddr __user *, addr, int __user *, addr_len) { struct socket *sock; @@ -1795,7 +1794,7 @@ out: */ asmlinkage long sys_recv(int fd, void __user *ubuf, size_t size, - unsigned flags) + unsigned int flags) { return sys_recvfrom(fd, ubuf, size, flags, NULL, NULL); } @@ -1897,7 +1896,7 @@ struct used_address { }; static int __sys_sendmsg(struct socket *sock, struct msghdr __user *msg, - struct msghdr *msg_sys, unsigned flags, + struct msghdr *msg_sys, unsigned int flags, struct used_address *used_address) { struct compat_msghdr __user *msg_compat = @@ -1908,7 +1907,7 @@ static int __sys_sendmsg(struct socket *sock, struct msghdr __user *msg, __attribute__ ((aligned(sizeof(__kernel_size_t)))); /* 20 is size of ipv6_pktinfo */ unsigned char *ctl_buf = ctl; - int err, ctl_len, iov_size, total_len; + int err, ctl_len, total_len; err = -EFAULT; if (MSG_CMSG_COMPAT & flags) { @@ -1917,16 +1916,13 @@ static int __sys_sendmsg(struct socket *sock, struct msghdr __user *msg, } else if (copy_from_user(msg_sys, msg, sizeof(struct msghdr))) return -EFAULT; - /* do not move before msg_sys is valid */ - err = -EMSGSIZE; - if (msg_sys->msg_iovlen > UIO_MAXIOV) - goto out; - - /* Check whether to allocate the iovec area */ - err = -ENOMEM; - iov_size = msg_sys->msg_iovlen * sizeof(struct iovec); if (msg_sys->msg_iovlen > UIO_FASTIOV) { - iov = sock_kmalloc(sock->sk, iov_size, GFP_KERNEL); + err = -EMSGSIZE; + if (msg_sys->msg_iovlen > UIO_MAXIOV) + goto out; + err = -ENOMEM; + iov = kmalloc(msg_sys->msg_iovlen * sizeof(struct iovec), + GFP_KERNEL); if (!iov) goto out; } @@ -2005,7 +2001,7 @@ out_freectl: sock_kfree_s(sock->sk, ctl_buf, ctl_len); out_freeiov: if (iov != iovstack) - sock_kfree_s(sock->sk, iov, iov_size); + kfree(iov); out: return err; } @@ -2014,7 +2010,7 @@ out: * BSD sendmsg interface */ -SYSCALL_DEFINE3(sendmsg, int, fd, struct msghdr __user *, msg, unsigned, flags) +SYSCALL_DEFINE3(sendmsg, int, fd, struct msghdr __user *, msg, unsigned int, flags) { int fput_needed, err; struct msghdr msg_sys; @@ -2096,14 +2092,14 @@ SYSCALL_DEFINE4(sendmmsg, int, fd, struct mmsghdr __user *, mmsg, } static int __sys_recvmsg(struct socket *sock, struct msghdr __user *msg, - struct msghdr *msg_sys, unsigned flags, int nosec) + struct msghdr *msg_sys, unsigned int flags, int nosec) { struct compat_msghdr __user *msg_compat = (struct compat_msghdr __user *)msg; struct iovec iovstack[UIO_FASTIOV]; struct iovec *iov = iovstack; unsigned long cmsg_ptr; - int err, iov_size, total_len, len; + int err, total_len, len; /* kernel mode address */ struct sockaddr_storage addr; @@ -2118,15 +2114,13 @@ static int __sys_recvmsg(struct socket *sock, struct msghdr __user *msg, } else if (copy_from_user(msg_sys, msg, sizeof(struct msghdr))) return -EFAULT; - err = -EMSGSIZE; - if (msg_sys->msg_iovlen > UIO_MAXIOV) - goto out; - - /* Check whether to allocate the iovec area */ - err = -ENOMEM; - iov_size = msg_sys->msg_iovlen * sizeof(struct iovec); if (msg_sys->msg_iovlen > UIO_FASTIOV) { - iov = sock_kmalloc(sock->sk, iov_size, GFP_KERNEL); + err = -EMSGSIZE; + if (msg_sys->msg_iovlen > UIO_MAXIOV) + goto out; + err = -ENOMEM; + iov = kmalloc(msg_sys->msg_iovlen * sizeof(struct iovec), + GFP_KERNEL); if (!iov) goto out; } @@ -2180,7 +2174,7 @@ static int __sys_recvmsg(struct socket *sock, struct msghdr __user *msg, out_freeiov: if (iov != iovstack) - sock_kfree_s(sock->sk, iov, iov_size); + kfree(iov); out: return err; } @@ -2524,6 +2518,12 @@ EXPORT_SYMBOL(sock_unregister); static int __init sock_init(void) { int err; + /* + * Initialize the network sysctl infrastructure. + */ + err = net_sysctl_init(); + if (err) + goto out; /* * Initialize sock SLAB cache. @@ -3223,7 +3223,7 @@ static int compat_sock_ioctl_trans(struct file *file, struct socket *sock, return -ENOIOCTLCMD; } -static long compat_sock_ioctl(struct file *file, unsigned cmd, +static long compat_sock_ioctl(struct file *file, unsigned int cmd, unsigned long arg) { struct socket *sock = file->private_data; |