19 Jul, 2010
2 commits
-
This patch adds a new networking option to allow hardware time stamps
from PHY devices. When enabled, likely candidates among incoming and
outgoing network packets are offered to the PHY driver for possible
time stamping. When accepted by the PHY driver, incoming packets are
deferred for later delivery by the driver.The patch also adds phylib driver methods for the SIOCSHWTSTAMP ioctl
and callbacks for transmit and receive time stamping. Drivers may
optionally implement these functions.Signed-off-by: Richard Cochran
Signed-off-by: David S. Miller -
MAX_SOCK_ADDR is no longer used because commit 230b1839 "net: Use standard
structures for generic socket address structures." replaced
"char address[MAX_SOCK_ADDR];" with "struct sockaddr_storage address;".Signed-off-by: Tetsuo Handa
Signed-off-by: David S. Miller
04 Jun, 2010
1 commit
-
From: Eric Dumazet
Date: Thu, 3 Jun 2010 04:29:41 +0000
Subject: [PATCH 2/3] net: net/socket.c and net/compat.c cleanupscleanup patch, to match modern coding style.
Signed-off-by: Eric Dumazet
Signed-off-by: David S. Miller
---
net/compat.c | 47 ++++++++---------
net/socket.c | 165 ++++++++++++++++++++++++++++------------------------------
2 files changed, 102 insertions(+), 110 deletions(-)diff --git a/net/compat.c b/net/compat.c
index 1cf7590..63d260e 100644
--- a/net/compat.c
+++ b/net/compat.c
@@ -81,7 +81,7 @@ int verify_compat_iovec(struct msghdr *kern_msg, struct iovec *kern_iov,
int tot_len;if (kern_msg->msg_namelen) {
- if (mode==VERIFY_READ) {
+ if (mode == VERIFY_READ) {
int err = move_addr_to_kernel(kern_msg->msg_name,
kern_msg->msg_namelen,
kern_address);
@@ -354,7 +354,7 @@ static int do_set_attach_filter(struct socket *sock, int level, int optname,
static int do_set_sock_timeout(struct socket *sock, int level,
int optname, char __user *optval, unsigned int optlen)
{
- struct compat_timeval __user *up = (struct compat_timeval __user *) optval;
+ struct compat_timeval __user *up = (struct compat_timeval __user *)optval;
struct timeval ktime;
mm_segment_t old_fs;
int err;
@@ -367,7 +367,7 @@ static int do_set_sock_timeout(struct socket *sock, int level,
return -EFAULT;
old_fs = get_fs();
set_fs(KERNEL_DS);
- err = sock_setsockopt(sock, level, optname, (char *) &ktime, sizeof(ktime));
+ err = sock_setsockopt(sock, level, optname, (char *)&ktime, sizeof(ktime));
set_fs(old_fs);return err;
@@ -389,11 +389,10 @@ asmlinkage long compat_sys_setsockopt(int fd, int level, int optname,
char __user *optval, unsigned int optlen)
{
int err;
- struct socket *sock;
+ struct socket *sock = sockfd_lookup(fd, &err);- if ((sock = sockfd_lookup(fd, &err))!=NULL)
- {
- err = security_socket_setsockopt(sock,level,optname);
+ if (sock) {
+ err = security_socket_setsockopt(sock, level, optname);
if (err) {
sockfd_put(sock);
return err;
@@ -453,7 +452,7 @@ static int compat_sock_getsockopt(struct socket *sock, int level, int optname,
int compat_sock_get_timestamp(struct sock *sk, struct timeval __user *userstamp)
{
struct compat_timeval __user *ctv =
- (struct compat_timeval __user*) userstamp;
+ (struct compat_timeval __user *) userstamp;
int err = -ENOENT;
struct timeval tv;@@ -477,7 +476,7 @@ EXPORT_SYMBOL(compat_sock_get_timestamp);
int compat_sock_get_timestampns(struct sock *sk, struct timespec __user *userstamp)
{
struct compat_timespec __user *ctv =
- (struct compat_timespec __user*) userstamp;
+ (struct compat_timespec __user *) userstamp;
int err = -ENOENT;
struct timespec ts;@@ -502,12 +501,10 @@ asmlinkage long compat_sys_getsockopt(int fd, int level, int optname,
char __user *optval, int __user *optlen)
{
int err;
- struct socket *sock;
+ struct socket *sock = sockfd_lookup(fd, &err);- if ((sock = sockfd_lookup(fd, &err))!=NULL)
- {
- err = security_socket_getsockopt(sock, level,
- optname);
+ if (sock) {
+ err = security_socket_getsockopt(sock, level, optname);
if (err) {
sockfd_put(sock);
return err;
@@ -557,7 +554,7 @@ struct compat_group_filter {int compat_mc_setsockopt(struct sock *sock, int level, int optname,
char __user *optval, unsigned int optlen,
- int (*setsockopt)(struct sock *,int,int,char __user *,unsigned int))
+ int (*setsockopt)(struct sock *, int, int, char __user *, unsigned int))
{
char __user *koptval = optval;
int koptlen = optlen;
@@ -640,12 +637,11 @@ int compat_mc_setsockopt(struct sock *sock, int level, int optname,
}
return setsockopt(sock, level, optname, koptval, koptlen);
}
-
EXPORT_SYMBOL(compat_mc_setsockopt);int compat_mc_getsockopt(struct sock *sock, int level, int optname,
char __user *optval, int __user *optlen,
- int (*getsockopt)(struct sock *,int,int,char __user *,int __user *))
+ int (*getsockopt)(struct sock *, int, int, char __user *, int __user *))
{
struct compat_group_filter __user *gf32 = (void *)optval;
struct group_filter __user *kgf;
@@ -681,7 +677,7 @@ int compat_mc_getsockopt(struct sock *sock, int level, int optname,
__put_user(interface, &kgf->gf_interface) ||
__put_user(fmode, &kgf->gf_fmode) ||
__put_user(numsrc, &kgf->gf_numsrc) ||
- copy_in_user(&kgf->gf_group,&gf32->gf_group,sizeof(kgf->gf_group)))
+ copy_in_user(&kgf->gf_group, &gf32->gf_group, sizeof(kgf->gf_group)))
return -EFAULT;err = getsockopt(sock, level, optname, (char __user *)kgf, koptlen);
@@ -714,21 +710,22 @@ int compat_mc_getsockopt(struct sock *sock, int level, int optname,
copylen = numsrc * sizeof(gf32->gf_slist[0]);
if (copylen > klen)
copylen = klen;
- if (copy_in_user(gf32->gf_slist, kgf->gf_slist, copylen))
+ if (copy_in_user(gf32->gf_slist, kgf->gf_slist, copylen))
return -EFAULT;
}
return err;
}
-
EXPORT_SYMBOL(compat_mc_getsockopt);/* Argument list sizes for compat_sys_socketcall */
#define AL(x) ((x) * sizeof(u32))
-static unsigned char nas[20]={AL(0),AL(3),AL(3),AL(3),AL(2),AL(3),
- AL(3),AL(3),AL(4),AL(4),AL(4),AL(6),
- AL(6),AL(2),AL(5),AL(5),AL(3),AL(3),
- AL(4),AL(5)};
+static unsigned char nas[20] = {
+ AL(0), AL(3), AL(3), AL(3), AL(2), AL(3),
+ AL(3), AL(3), AL(4), AL(4), AL(4), AL(6),
+ AL(6), AL(2), AL(5), AL(5), AL(3), AL(3),
+ AL(4), AL(5)
+};
#undef ALasmlinkage long compat_sys_sendmsg(int fd, struct compat_msghdr __user *msg, unsigned flags)
@@ -827,7 +824,7 @@ asmlinkage long compat_sys_socketcall(int call, u32 __user *args)
compat_ptr(a[4]), compat_ptr(a[5]));
break;
case SYS_SHUTDOWN:
- ret = sys_shutdown(a0,a1);
+ ret = sys_shutdown(a0, a1);
break;
case SYS_SETSOCKOPT:
ret = compat_sys_setsockopt(a0, a1, a[2],
diff --git a/net/socket.c b/net/socket.c
index 367d547..b63c051 100644
--- a/net/socket.c
+++ b/net/socket.c
@@ -124,7 +124,7 @@ static int sock_fasync(int fd, struct file *filp, int on);
static ssize_t sock_sendpage(struct file *file, struct page *page,
int offset, size_t size, loff_t *ppos, int more);
static ssize_t sock_splice_read(struct file *file, loff_t *ppos,
- struct pipe_inode_info *pipe, size_t len,
+ struct pipe_inode_info *pipe, size_t len,
unsigned int flags);/*
@@ -162,7 +162,7 @@ static const struct net_proto_family *net_families[NPROTO] __read_mostly;
* Statistics counters of the socket lists
*/-static DEFINE_PER_CPU(int, sockets_in_use) = 0;
+static DEFINE_PER_CPU(int, sockets_in_use);/*
* Support routines.
@@ -309,9 +309,9 @@ static int init_inodecache(void)
}static const struct super_operations sockfs_ops = {
- .alloc_inode = sock_alloc_inode,
- .destroy_inode =sock_destroy_inode,
- .statfs = simple_statfs,
+ .alloc_inode = sock_alloc_inode,
+ .destroy_inode = sock_destroy_inode,
+ .statfs = simple_statfs,
};static int sockfs_get_sb(struct file_system_type *fs_type,
@@ -411,6 +411,7 @@ int sock_map_fd(struct socket *sock, int flags)return fd;
}
+EXPORT_SYMBOL(sock_map_fd);static struct socket *sock_from_file(struct file *file, int *err)
{
@@ -422,7 +423,7 @@ static struct socket *sock_from_file(struct file *file, int *err)
}/**
- * sockfd_lookup - Go from a file number to its socket slot
+ * sockfd_lookup - Go from a file number to its socket slot
* @fd: file handle
* @err: pointer to an error code return
*
@@ -450,6 +451,7 @@ struct socket *sockfd_lookup(int fd, int *err)
fput(file);
return sock;
}
+EXPORT_SYMBOL(sockfd_lookup);static struct socket *sockfd_lookup_light(int fd, int *err, int *fput_needed)
{
@@ -540,6 +542,7 @@ void sock_release(struct socket *sock)
}
sock->file = NULL;
}
+EXPORT_SYMBOL(sock_release);int sock_tx_timestamp(struct msghdr *msg, struct sock *sk,
union skb_shared_tx *shtx)
@@ -586,6 +589,7 @@ int sock_sendmsg(struct socket *sock, struct msghdr *msg, size_t size)
ret = wait_on_sync_kiocb(&iocb);
return ret;
}
+EXPORT_SYMBOL(sock_sendmsg);int kernel_sendmsg(struct socket *sock, struct msghdr *msg,
struct kvec *vec, size_t num, size_t size)
@@ -604,6 +608,7 @@ int kernel_sendmsg(struct socket *sock, struct msghdr *msg,
set_fs(oldfs);
return result;
}
+EXPORT_SYMBOL(kernel_sendmsg);static int ktime2ts(ktime_t kt, struct timespec *ts)
{
@@ -664,7 +669,6 @@ void __sock_recv_timestamp(struct msghdr *msg, struct sock *sk,
put_cmsg(msg, SOL_SOCKET,
SCM_TIMESTAMPING, sizeof(ts), &ts);
}
-
EXPORT_SYMBOL_GPL(__sock_recv_timestamp);inline void sock_recv_drops(struct msghdr *msg, struct sock *sk, struct sk_buff *skb)
@@ -720,6 +724,7 @@ int sock_recvmsg(struct socket *sock, struct msghdr *msg,
ret = wait_on_sync_kiocb(&iocb);
return ret;
}
+EXPORT_SYMBOL(sock_recvmsg);static int sock_recvmsg_nosec(struct socket *sock, struct msghdr *msg,
size_t size, int flags)
@@ -752,6 +757,7 @@ int kernel_recvmsg(struct socket *sock, struct msghdr *msg,
set_fs(oldfs);
return result;
}
+EXPORT_SYMBOL(kernel_recvmsg);static void sock_aio_dtor(struct kiocb *iocb)
{
@@ -774,7 +780,7 @@ static ssize_t sock_sendpage(struct file *file, struct page *page,
}static ssize_t sock_splice_read(struct file *file, loff_t *ppos,
- struct pipe_inode_info *pipe, size_t len,
+ struct pipe_inode_info *pipe, size_t len,
unsigned int flags)
{
struct socket *sock = file->private_data;
@@ -887,7 +893,7 @@ static ssize_t sock_aio_write(struct kiocb *iocb, const struct iovec *iov,
*/static DEFINE_MUTEX(br_ioctl_mutex);
-static int (*br_ioctl_hook) (struct net *, unsigned int cmd, void __user *arg) = NULL;
+static int (*br_ioctl_hook) (struct net *, unsigned int cmd, void __user *arg);void brioctl_set(int (*hook) (struct net *, unsigned int, void __user *))
{
@@ -895,7 +901,6 @@ void brioctl_set(int (*hook) (struct net *, unsigned int, void __user *))
br_ioctl_hook = hook;
mutex_unlock(&br_ioctl_mutex);
}
-
EXPORT_SYMBOL(brioctl_set);static DEFINE_MUTEX(vlan_ioctl_mutex);
@@ -907,7 +912,6 @@ void vlan_ioctl_set(int (*hook) (struct net *, void __user *))
vlan_ioctl_hook = hook;
mutex_unlock(&vlan_ioctl_mutex);
}
-
EXPORT_SYMBOL(vlan_ioctl_set);static DEFINE_MUTEX(dlci_ioctl_mutex);
@@ -919,7 +923,6 @@ void dlci_ioctl_set(int (*hook) (unsigned int, void __user *))
dlci_ioctl_hook = hook;
mutex_unlock(&dlci_ioctl_mutex);
}
-
EXPORT_SYMBOL(dlci_ioctl_set);static long sock_do_ioctl(struct net *net, struct socket *sock,
@@ -1047,6 +1050,7 @@ out_release:
sock = NULL;
goto out;
}
+EXPORT_SYMBOL(sock_create_lite);/* No kernel lock held - perfect */
static unsigned int sock_poll(struct file *file, poll_table *wait)
@@ -1147,6 +1151,7 @@ call_kill:
rcu_read_unlock();
return 0;
}
+EXPORT_SYMBOL(sock_wake_async);static int __sock_create(struct net *net, int family, int type, int protocol,
struct socket **res, int kern)
@@ -1265,11 +1270,13 @@ int sock_create(int family, int type, int protocol, struct socket **res)
{
return __sock_create(current->nsproxy->net_ns, family, type, protocol, res, 0);
}
+EXPORT_SYMBOL(sock_create);int sock_create_kern(int family, int type, int protocol, struct socket **res)
{
return __sock_create(&init_net, family, type, protocol, res, 1);
}
+EXPORT_SYMBOL(sock_create_kern);SYSCALL_DEFINE3(socket, int, family, int, type, int, protocol)
{
@@ -1474,7 +1481,8 @@ SYSCALL_DEFINE4(accept4, int, fd, struct sockaddr __user *, upeer_sockaddr,
goto out;err = -ENFILE;
- if (!(newsock = sock_alloc()))
+ newsock = sock_alloc();
+ if (!newsock)
goto out_put;newsock->type = sock->type;
@@ -1861,8 +1869,7 @@ SYSCALL_DEFINE3(sendmsg, int, fd, struct msghdr __user *, msg, unsigned, flags)
if (MSG_CMSG_COMPAT & flags) {
if (get_compat_msghdr(&msg_sys, msg_compat))
return -EFAULT;
- }
- else if (copy_from_user(&msg_sys, msg, sizeof(struct msghdr)))
+ } else if (copy_from_user(&msg_sys, msg, sizeof(struct msghdr)))
return -EFAULT;sock = sockfd_lookup_light(fd, &err, &fput_needed);
@@ -1964,8 +1971,7 @@ static int __sys_recvmsg(struct socket *sock, struct msghdr __user *msg,
if (MSG_CMSG_COMPAT & flags) {
if (get_compat_msghdr(msg_sys, msg_compat))
return -EFAULT;
- }
- else if (copy_from_user(msg_sys, msg, sizeof(struct msghdr)))
+ } else if (copy_from_user(msg_sys, msg, sizeof(struct msghdr)))
return -EFAULT;err = -EMSGSIZE;
@@ -2191,10 +2197,10 @@ SYSCALL_DEFINE5(recvmmsg, int, fd, struct mmsghdr __user *, mmsg,
/* Argument list sizes for sys_socketcall */
#define AL(x) ((x) * sizeof(unsigned long))
static const unsigned char nargs[20] = {
- AL(0),AL(3),AL(3),AL(3),AL(2),AL(3),
- AL(3),AL(3),AL(4),AL(4),AL(4),AL(6),
- AL(6),AL(2),AL(5),AL(5),AL(3),AL(3),
- AL(4),AL(5)
+ AL(0), AL(3), AL(3), AL(3), AL(2), AL(3),
+ AL(3), AL(3), AL(4), AL(4), AL(4), AL(6),
+ AL(6), AL(2), AL(5), AL(5), AL(3), AL(3),
+ AL(4), AL(5)
};#undef AL
@@ -2340,6 +2346,7 @@ int sock_register(const struct net_proto_family *ops)
printk(KERN_INFO "NET: Registered protocol family %d\n", ops->family);
return err;
}
+EXPORT_SYMBOL(sock_register);/**
* sock_unregister - remove a protocol handler
@@ -2366,6 +2373,7 @@ void sock_unregister(int family)printk(KERN_INFO "NET: Unregistered protocol family %d\n", family);
}
+EXPORT_SYMBOL(sock_unregister);static int __init sock_init(void)
{
@@ -2490,13 +2498,13 @@ static int dev_ifconf(struct net *net, struct compat_ifconf __user *uifc32)
ifc.ifc_req = NULL;
uifc = compat_alloc_user_space(sizeof(struct ifconf));
} else {
- size_t len =((ifc32.ifc_len / sizeof (struct compat_ifreq)) + 1) *
- sizeof (struct ifreq);
+ size_t len = ((ifc32.ifc_len / sizeof(struct compat_ifreq)) + 1) *
+ sizeof(struct ifreq);
uifc = compat_alloc_user_space(sizeof(struct ifconf) + len);
ifc.ifc_len = len;
ifr = ifc.ifc_req = (void __user *)(uifc + 1);
ifr32 = compat_ptr(ifc32.ifcbuf);
- for (i = 0; i < ifc32.ifc_len; i += sizeof (struct compat_ifreq)) {
+ for (i = 0; i < ifc32.ifc_len; i += sizeof(struct compat_ifreq)) {
if (copy_in_user(ifr, ifr32, sizeof(struct compat_ifreq)))
return -EFAULT;
ifr++;
@@ -2516,9 +2524,9 @@ static int dev_ifconf(struct net *net, struct compat_ifconf __user *uifc32)
ifr = ifc.ifc_req;
ifr32 = compat_ptr(ifc32.ifcbuf);
for (i = 0, j = 0;
- i + sizeof (struct compat_ifreq) < ifc.ifc_len;
- i += sizeof (struct compat_ifreq), j += sizeof (struct ifreq)) {
- if (copy_in_user(ifr32, ifr, sizeof (struct compat_ifreq)))
+ i + sizeof(struct compat_ifreq) < ifc.ifc_len;
+ i += sizeof(struct compat_ifreq), j += sizeof(struct ifreq)) {
+ if (copy_in_user(ifr32, ifr, sizeof(struct compat_ifreq)))
return -EFAULT;
ifr32++;
ifr++;
@@ -2567,7 +2575,7 @@ static int compat_siocwandev(struct net *net, struct compat_ifreq __user *uifr32
compat_uptr_t uptr32;
struct ifreq __user *uifr;- uifr = compat_alloc_user_space(sizeof (*uifr));
+ uifr = compat_alloc_user_space(sizeof(*uifr));
if (copy_in_user(uifr, uifr32, sizeof(struct compat_ifreq)))
return -EFAULT;@@ -2601,9 +2609,9 @@ static int bond_ioctl(struct net *net, unsigned int cmd,
return -EFAULT;old_fs = get_fs();
- set_fs (KERNEL_DS);
+ set_fs(KERNEL_DS);
err = dev_ioctl(net, cmd, &kifr);
- set_fs (old_fs);
+ set_fs(old_fs);return err;
case SIOCBONDSLAVEINFOQUERY:
@@ -2710,9 +2718,9 @@ static int compat_sioc_ifmap(struct net *net, unsigned int cmd,
return -EFAULT;old_fs = get_fs();
- set_fs (KERNEL_DS);
+ set_fs(KERNEL_DS);
err = dev_ioctl(net, cmd, (void __user *)&ifr);
- set_fs (old_fs);
+ set_fs(old_fs);if (cmd == SIOCGIFMAP && !err) {
err = copy_to_user(uifr32, &ifr, sizeof(ifr.ifr_name));
@@ -2734,7 +2742,7 @@ static int compat_siocshwtstamp(struct net *net, struct compat_ifreq __user *uif
compat_uptr_t uptr32;
struct ifreq __user *uifr;- uifr = compat_alloc_user_space(sizeof (*uifr));
+ uifr = compat_alloc_user_space(sizeof(*uifr));
if (copy_in_user(uifr, uifr32, sizeof(struct compat_ifreq)))
return -EFAULT;@@ -2750,20 +2758,20 @@ static int compat_siocshwtstamp(struct net *net, struct compat_ifreq __user *uif
}struct rtentry32 {
- u32 rt_pad1;
+ u32 rt_pad1;
struct sockaddr rt_dst; /* target address */
struct sockaddr rt_gateway; /* gateway addr (RTF_GATEWAY) */
struct sockaddr rt_genmask; /* target network mask (IP) */
- unsigned short rt_flags;
- short rt_pad2;
- u32 rt_pad3;
- unsigned char rt_tos;
- unsigned char rt_class;
- short rt_pad4;
- short rt_metric; /* +1 for binary compatibility! */
+ unsigned short rt_flags;
+ short rt_pad2;
+ u32 rt_pad3;
+ unsigned char rt_tos;
+ unsigned char rt_class;
+ short rt_pad4;
+ short rt_metric; /* +1 for binary compatibility! */
/* char * */ u32 rt_dev; /* forcing the device at add */
- u32 rt_mtu; /* per route MTU/Window */
- u32 rt_window; /* Window clamping */
+ u32 rt_mtu; /* per route MTU/Window */
+ u32 rt_window; /* Window clamping */
unsigned short rt_irtt; /* Initial RTT */
};@@ -2793,29 +2801,29 @@ static int routing_ioctl(struct net *net, struct socket *sock,
if (sock && sock->sk && sock->sk->sk_family == AF_INET6) { /* ipv6 */
struct in6_rtmsg32 __user *ur6 = argp;
- ret = copy_from_user (&r6.rtmsg_dst, &(ur6->rtmsg_dst),
+ ret = copy_from_user(&r6.rtmsg_dst, &(ur6->rtmsg_dst),
3 * sizeof(struct in6_addr));
- ret |= __get_user (r6.rtmsg_type, &(ur6->rtmsg_type));
- ret |= __get_user (r6.rtmsg_dst_len, &(ur6->rtmsg_dst_len));
- ret |= __get_user (r6.rtmsg_src_len, &(ur6->rtmsg_src_len));
- ret |= __get_user (r6.rtmsg_metric, &(ur6->rtmsg_metric));
- ret |= __get_user (r6.rtmsg_info, &(ur6->rtmsg_info));
- ret |= __get_user (r6.rtmsg_flags, &(ur6->rtmsg_flags));
- ret |= __get_user (r6.rtmsg_ifindex, &(ur6->rtmsg_ifindex));
+ ret |= __get_user(r6.rtmsg_type, &(ur6->rtmsg_type));
+ ret |= __get_user(r6.rtmsg_dst_len, &(ur6->rtmsg_dst_len));
+ ret |= __get_user(r6.rtmsg_src_len, &(ur6->rtmsg_src_len));
+ ret |= __get_user(r6.rtmsg_metric, &(ur6->rtmsg_metric));
+ ret |= __get_user(r6.rtmsg_info, &(ur6->rtmsg_info));
+ ret |= __get_user(r6.rtmsg_flags, &(ur6->rtmsg_flags));
+ ret |= __get_user(r6.rtmsg_ifindex, &(ur6->rtmsg_ifindex));r = (void *) &r6;
} else { /* ipv4 */
struct rtentry32 __user *ur4 = argp;
- ret = copy_from_user (&r4.rt_dst, &(ur4->rt_dst),
+ ret = copy_from_user(&r4.rt_dst, &(ur4->rt_dst),
3 * sizeof(struct sockaddr));
- ret |= __get_user (r4.rt_flags, &(ur4->rt_flags));
- ret |= __get_user (r4.rt_metric, &(ur4->rt_metric));
- ret |= __get_user (r4.rt_mtu, &(ur4->rt_mtu));
- ret |= __get_user (r4.rt_window, &(ur4->rt_window));
- ret |= __get_user (r4.rt_irtt, &(ur4->rt_irtt));
- ret |= __get_user (rtdev, &(ur4->rt_dev));
+ ret |= __get_user(r4.rt_flags, &(ur4->rt_flags));
+ ret |= __get_user(r4.rt_metric, &(ur4->rt_metric));
+ ret |= __get_user(r4.rt_mtu, &(ur4->rt_mtu));
+ ret |= __get_user(r4.rt_window, &(ur4->rt_window));
+ ret |= __get_user(r4.rt_irtt, &(ur4->rt_irtt));
+ ret |= __get_user(rtdev, &(ur4->rt_dev));
if (rtdev) {
- ret |= copy_from_user (devname, compat_ptr(rtdev), 15);
+ ret |= copy_from_user(devname, compat_ptr(rtdev), 15);
r4.rt_dev = devname; devname[15] = 0;
} else
r4.rt_dev = NULL;
@@ -2828,9 +2836,9 @@ static int routing_ioctl(struct net *net, struct socket *sock,
goto out;
}- set_fs (KERNEL_DS);
+ set_fs(KERNEL_DS);
ret = sock_do_ioctl(net, sock, cmd, (unsigned long) r);
- set_fs (old_fs);
+ set_fs(old_fs);out:
return ret;
@@ -2993,11 +3001,13 @@ int kernel_bind(struct socket *sock, struct sockaddr *addr, int addrlen)
{
return sock->ops->bind(sock, addr, addrlen);
}
+EXPORT_SYMBOL(kernel_bind);int kernel_listen(struct socket *sock, int backlog)
{
return sock->ops->listen(sock, backlog);
}
+EXPORT_SYMBOL(kernel_listen);int kernel_accept(struct socket *sock, struct socket **newsock, int flags)
{
@@ -3022,24 +3032,28 @@ int kernel_accept(struct socket *sock, struct socket **newsock, int flags)
done:
return err;
}
+EXPORT_SYMBOL(kernel_accept);int kernel_connect(struct socket *sock, struct sockaddr *addr, int addrlen,
int flags)
{
return sock->ops->connect(sock, addr, addrlen, flags);
}
+EXPORT_SYMBOL(kernel_connect);int kernel_getsockname(struct socket *sock, struct sockaddr *addr,
int *addrlen)
{
return sock->ops->getname(sock, addr, addrlen, 0);
}
+EXPORT_SYMBOL(kernel_getsockname);int kernel_getpeername(struct socket *sock, struct sockaddr *addr,
int *addrlen)
{
return sock->ops->getname(sock, addr, addrlen, 1);
}
+EXPORT_SYMBOL(kernel_getpeername);int kernel_getsockopt(struct socket *sock, int level, int optname,
char *optval, int *optlen)
@@ -3056,6 +3070,7 @@ int kernel_getsockopt(struct socket *sock, int level, int optname,
set_fs(oldfs);
return err;
}
+EXPORT_SYMBOL(kernel_getsockopt);int kernel_setsockopt(struct socket *sock, int level, int optname,
char *optval, unsigned int optlen)
@@ -3072,6 +3087,7 @@ int kernel_setsockopt(struct socket *sock, int level, int optname,
set_fs(oldfs);
return err;
}
+EXPORT_SYMBOL(kernel_setsockopt);int kernel_sendpage(struct socket *sock, struct page *page, int offset,
size_t size, int flags)
@@ -3083,6 +3099,7 @@ int kernel_sendpage(struct socket *sock, struct page *page, int offset,return sock_no_sendpage(sock, page, offset, size, flags);
}
+EXPORT_SYMBOL(kernel_sendpage);int kernel_sock_ioctl(struct socket *sock, int cmd, unsigned long arg)
{
@@ -3095,33 +3112,11 @@ int kernel_sock_ioctl(struct socket *sock, int cmd, unsigned long arg)return err;
}
+EXPORT_SYMBOL(kernel_sock_ioctl);int kernel_sock_shutdown(struct socket *sock, enum sock_shutdown_cmd how)
{
return sock->ops->shutdown(sock, how);
}
-
-EXPORT_SYMBOL(sock_create);
-EXPORT_SYMBOL(sock_create_kern);
-EXPORT_SYMBOL(sock_create_lite);
-EXPORT_SYMBOL(sock_map_fd);
-EXPORT_SYMBOL(sock_recvmsg);
-EXPORT_SYMBOL(sock_register);
-EXPORT_SYMBOL(sock_release);
-EXPORT_SYMBOL(sock_sendmsg);
-EXPORT_SYMBOL(sock_unregister);
-EXPORT_SYMBOL(sock_wake_async);
-EXPORT_SYMBOL(sockfd_lookup);
-EXPORT_SYMBOL(kernel_sendmsg);
-EXPORT_SYMBOL(kernel_recvmsg);
-EXPORT_SYMBOL(kernel_bind);
-EXPORT_SYMBOL(kernel_listen);
-EXPORT_SYMBOL(kernel_accept);
-EXPORT_SYMBOL(kernel_connect);
-EXPORT_SYMBOL(kernel_getsockname);
-EXPORT_SYMBOL(kernel_getpeername);
-EXPORT_SYMBOL(kernel_getsockopt);
-EXPORT_SYMBOL(kernel_setsockopt);
-EXPORT_SYMBOL(kernel_sendpage);
-EXPORT_SYMBOL(kernel_sock_ioctl);
EXPORT_SYMBOL(kernel_sock_shutdown);
+
--
1.7.0.4
24 May, 2010
1 commit
-
Up until now cls_cgroup has relied on fetching the classid out of
the current executing thread. This runs into trouble when a packet
processing is delayed in which case it may execute out of another
thread's context.Furthermore, even when a packet is not delayed we may fail to
classify it if soft IRQs have been disabled, because this scenario
is indistinguishable from one where a packet unrelated to the
current thread is processed by a real soft IRQ.In fact, the current semantics is inherently broken, as a single
skb may be constructed out of the writes of two different tasks.
A different manifestation of this problem is when the TCP stack
transmits in response of an incoming ACK. This is currently
unclassified.As we already have a concept of packet ownership for accounting
purposes in the skb->sk pointer, this is a natural place to store
the classid in a persistent manner.This patch adds the cls_cgroup classid in struct sock, filling up
an existing hole on 64-bit :)The value is set at socket creation time. So all sockets created
via socket(2) automatically gains the ID of the thread creating it.
Whenever another process touches the socket by either reading or
writing to it, we will change the socket classid to that of the
process if it has a valid (non-zero) classid.For sockets created on inbound connections through accept(2), we
inherit the classid of the original listening socket through
sk_clone, possibly preceding the actual accept(2) call.In order to minimise risks, I have not made this the authoritative
classid. For now it is only used as a backup when we execute
with soft IRQs disabled. Once we're completely happy with its
semantics we can use it as the sole classid.Footnote: I have rearranged the error path on cls_group module
creation. If we didn't do this, then there is a window where
someone could create a tc rule using cls_group before the cgroup
subsystem has been registered.Signed-off-by: Herbert Xu
Signed-off-by: David S. Miller
18 May, 2010
1 commit
-
Also added an explicit break; to avoid
a fallthrough in net/ipv4/tcp_input.cSigned-off-by: Joe Perches
Signed-off-by: David S. Miller
02 May, 2010
1 commit
-
sk_callback_lock rwlock actually protects sk->sk_sleep pointer, so we
need two atomic operations (and associated dirtying) per incoming
packet.RCU conversion is pretty much needed :
1) Add a new structure, called "struct socket_wq" to hold all fields
that will need rcu_read_lock() protection (currently: a
wait_queue_head_t and a struct fasync_struct pointer).[Future patch will add a list anchor for wakeup coalescing]
2) Attach one of such structure to each "struct socket" created in
sock_alloc_inode().3) Respect RCU grace period when freeing a "struct socket_wq"
4) Change sk_sleep pointer in "struct sock" by sk_wq, pointer to "struct
socket_wq"5) Change sk_sleep() function to use new sk->sk_wq instead of
sk->sk_sleep6) Change sk_has_sleeper() to wq_has_sleeper() that must be used inside
a rcu_read_lock() section.7) Change all sk_has_sleeper() callers to :
- Use rcu_read_lock() instead of read_lock(&sk->sk_callback_lock)
- Use wq_has_sleeper() to eventually wakeup tasks.
- Use rcu_read_unlock() instead of read_unlock(&sk->sk_callback_lock)8) sock_wake_async() is modified to use rcu protection as well.
9) Exceptions :
macvtap, drivers/net/tun.c, af_unix use integrated "struct socket_wq"
instead of dynamically allocated ones. They dont need rcu freeing.Some cleanups or followups are probably needed, (possible
sk_callback_lock conversion to a spinlock for example...).Signed-off-by: Eric Dumazet
Signed-off-by: David S. Miller
01 May, 2010
1 commit
-
sock_recv_ts_and_drops() is fat and slow (~ 4% of cpu time on some
profiles)We can test all socket flags at once to make fast path fast again.
Signed-off-by: Eric Dumazet
Signed-off-by: David S. Miller
22 Apr, 2010
1 commit
-
kill_fasync() uses a central rwlock, candidate for RCU conversion, to
avoid cache line ping pongs on SMP.fasync_remove_entry() and fasync_add_entry() can disable IRQS on a short
section instead during whole list scan.Use a spinlock per fasync_struct to synchronize kill_fasync_rcu() and
fasync_{remove|add}_entry(). This spinlock is IRQ safe, so sock_fasync()
doesnt need its own implementation and can use fasync_helper(), to
reduce code size and complexity.We can remove __kill_fasync() direct use in net/socket.c, and rename it
to kill_fasync_rcu().Signed-off-by: Eric Dumazet
Cc: Paul E. McKenney
Cc: Lai Jiangshan
Signed-off-by: David S. Miller
12 Apr, 2010
1 commit
-
Conflicts:
drivers/net/stmmac/stmmac_main.c
drivers/net/wireless/wl12xx/wl1271_cmd.c
drivers/net/wireless/wl12xx/wl1271_main.c
drivers/net/wireless/wl12xx/wl1271_spi.c
net/core/ethtool.c
net/mac80211/scan.c
07 Apr, 2010
2 commits
-
Conflicts:
drivers/net/bonding/bond_main.c
drivers/net/via-velocity.c
drivers/net/wireless/iwlwifi/iwl-agn.c -
struct timespec ts was alreay defined. Reuse the previously
defined one and reduce the memory footprint on the stack by
16 bytes.Signed-off-by: Hagen Paul Pfeifer
Signed-off-by: David S. Miller
30 Mar, 2010
1 commit
-
…it slab.h inclusion from percpu.h
percpu.h is included by sched.h and module.h and thus ends up being
included when building most .c files. percpu.h includes slab.h which
in turn includes gfp.h making everything defined by the two files
universally available and complicating inclusion dependencies.percpu.h -> slab.h dependency is about to be removed. Prepare for
this change by updating users of gfp and slab facilities include those
headers directly instead of assuming availability. As this conversion
needs to touch large number of source files, the following script is
used as the basis of conversion.http://userweb.kernel.org/~tj/misc/slabh-sweep.py
The script does the followings.
* Scan files for gfp and slab usages and update includes such that
only the necessary includes are there. ie. if only gfp is used,
gfp.h, if slab is used, slab.h.* When the script inserts a new include, it looks at the include
blocks and try to put the new include such that its order conforms
to its surrounding. It's put in the include block which contains
core kernel includes, in the same order that the rest are ordered -
alphabetical, Christmas tree, rev-Xmas-tree or at the end if there
doesn't seem to be any matching order.* If the script can't find a place to put a new include (mostly
because the file doesn't have fitting include block), it prints out
an error message indicating which .h file needs to be added to the
file.The conversion was done in the following steps.
1. The initial automatic conversion of all .c files updated slightly
over 4000 files, deleting around 700 includes and adding ~480 gfp.h
and ~3000 slab.h inclusions. The script emitted errors for ~400
files.2. Each error was manually checked. Some didn't need the inclusion,
some needed manual addition while adding it to implementation .h or
embedding .c file was more appropriate for others. This step added
inclusions to around 150 files.3. The script was run again and the output was compared to the edits
from #2 to make sure no file was left behind.4. Several build tests were done and a couple of problems were fixed.
e.g. lib/decompress_*.c used malloc/free() wrappers around slab
APIs requiring slab.h to be added manually.5. The script was run on all .h files but without automatically
editing them as sprinkling gfp.h and slab.h inclusions around .h
files could easily lead to inclusion dependency hell. Most gfp.h
inclusion directives were ignored as stuff from gfp.h was usually
wildly available and often used in preprocessor macros. Each
slab.h inclusion directive was examined and added manually as
necessary.6. percpu.h was updated not to include slab.h.
7. Build test were done on the following configurations and failures
were fixed. CONFIG_GCOV_KERNEL was turned off for all tests (as my
distributed build env didn't work with gcov compiles) and a few
more options had to be turned off depending on archs to make things
build (like ipr on powerpc/64 which failed due to missing writeq).* x86 and x86_64 UP and SMP allmodconfig and a custom test config.
* powerpc and powerpc64 SMP allmodconfig
* sparc and sparc64 SMP allmodconfig
* ia64 SMP allmodconfig
* s390 SMP allmodconfig
* alpha SMP allmodconfig
* um on x86_64 SMP allmodconfig8. percpu.h modifications were reverted so that it could be applied as
a separate patch and serve as bisection point.Given the fact that I had only a couple of failures from tests on step
6, I'm fairly confident about the coverage of this conversion patch.
If there is a breakage, it's likely to be something in one of the arch
headers which should be easily discoverable easily on most builds of
the specific arch.Signed-off-by: Tejun Heo <tj@kernel.org>
Guess-its-ok-by: Christoph Lameter <cl@linux-foundation.org>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Lee Schermerhorn <Lee.Schermerhorn@hp.com>
27 Mar, 2010
1 commit
-
Add new flag MSG_WAITFORONE for the recvmmsg() syscall.
When this flag is specified for a blocking socket, recvmmsg()
will only block until at least 1 packet is available. The
default behavior is to block until all vlen packets are
available. This flag has no effect on non-blocking sockets
or when used in combination with MSG_DONTWAIT.Signed-off-by: Brandon L Black
Acked-by: Ulrich Drepper
Acked-by: Eric Dumazet
Acked-by: Arnaldo Carvalho de Melo
Signed-off-by: David S. Miller
17 Dec, 2009
5 commits
-
Filesystems outside the regular namespace do not have to clear DCACHE_UNHASHED
in order to have a working /proc/$pid/fd/XXX. Nothing in proc prevents the
fd link from being used if its dentry is not in the hash.Also, it does not get put into the dcache hash if DCACHE_UNHASHED is clear;
that depends on the filesystem calling d_add or d_rehash.So delete the misleading comments and needless code.
Acked-by: Miklos Szeredi
Signed-off-by: Nick Piggin
Signed-off-by: Al Viro -
... and have the caller grab both mnt and dentry; kill
leak in infiniband, while we are at it.Signed-off-by: Al Viro
-
Signed-off-by: Al Viro
-
Signed-off-by: Al Viro
-
Signed-off-by: Al Viro
02 Dec, 2009
1 commit
-
Both to traverse the entries and to set the msg_len field.
Commiter note: folded two patches and avoided one branch repeating the
compat test.Signed-off-by: Jean-Mickael Guerin
Signed-off-by: Arnaldo Carvalho de Melo
Signed-off-by: David S. Miller
12 Nov, 2009
2 commits
-
We have two implementations of the compat_ioctl handling for ATM, the
one that we have had for ages in fs/compat_ioctl.c and the one added to
net/atm/ioctl.c by David Woodhouse. Unfortunately, both versions are
incomplete, and in practice we use a very confusing combination of the
two.For ioctl numbers that have the same identifier on 32 and 64 bit systems,
we go directly through the compat_ioctl socket operation, for those thatdiffer, we do a conversion in fs/compat_ioctl.c.
This patch moves both variants into the vcc_compat_ioctl() function,
while preserving the current behaviour. It also kills off the COMPATIBLE_IOCTL
definitions that we never use here.
Doing it this way is clearly not a good solution, but I hope it is a
step into the right direction, so that someone is able to clean up this
mess for real.Signed-off-by: Arnd Bergmann
Cc: Eric Dumazet
Cc: David Woodhouse
Signed-off-by: David S. Miller -
Handling for SIOCSHWTSTAMP is broken on architectures
with a split user/kernel address space like s390,
because it passes a real user pointer while using
set_fs(KERNEL_DS).
A similar problem might arise the next time somebody
adds code to dev_ifsioc.Split up dev_ifsioc into three separate functions for
SIOCSHWTSTAMP, SIOC*IFMAP and all other numbers so
we can get rid of set_fs in all potentially affected
cases.Signed-off-by: Arnd Bergmann
Cc: Patrick Ohly
Cc: David S. Miller
Signed-off-by: David S. Miller
09 Nov, 2009
2 commits
-
This adds compat_ioctl support for SIOCWANDEV, which has
always been missing.The definition of struct compat_ifreq was missing an
ifru_settings fields that is needed to support SIOCWANDEV,
so add that and clean up the whitespace damage in the
struct definition.Signed-off-by: Arnd Bergmann
Signed-off-by: David S. Miller -
SIOCGMIIPHY and SIOCGMIIREG return data through ifreq,
so it needs to be converted on the way out as well.SIOCGIFPFLAGS is unused, but has the same problem in theory.
Signed-off-by: Arnd Bergmann
Signed-off-by: David S. Miller
07 Nov, 2009
3 commits
-
The MII ioctls and SIOCSIFNAME need to go through ifsioc conversion,
which they never did so far. Some others are not implemented in the
native path, so we can just return -EINVAL directly.Add IFSLAVE ioctls to the EINVAL list and move it to the end to
optimize the code path for the common case.Signed-off-by: Arnd Bergmann
Signed-off-by: David S. Miller -
This removes the original socket compat_ioctl code
from fs/compat_ioctl.c and converts the code from the copy
in net/socket.c into a single function. We add a few cycles
of runtime to compat_sock_ioctl() with the long switch()
statement, but gain some cycles in return by simplifying
the call chain to get there.Due to better inlining, save 1.5kb of object size in the
process, and enable further savings:before:
text data bss dec hex filename
13540 18008 2080 33628 835c obj/fs/compat_ioctl.o
14565 636 40 15241 3b89 obj/net/socket.oafter:
text data bss dec hex filename
8916 15176 2080 26172 663c obj/fs/compat_ioctl.o
20725 636 40 21401 5399 obj/net/socket.oSigned-off-by: Arnd Bergmann
Signed-off-by: David S. Miller -
This makes an identical copy of the socket compat_ioctl code
from fs/compat_ioctl.c to net/socket.c, as a preparation
for moving the functionality in a way that can be easily
reviewed.The code is hidden inside of #if 0 and gets activated in the
patch that will make it work.Signed-off-by: Arnd Bergmann
Signed-off-by: David S. Miller
06 Nov, 2009
1 commit
-
The generic __sock_create function has a kern argument which allows the
security system to make decisions based on if a socket is being created by
the kernel or by userspace. This patch passes that flag to the
net_proto_family specific create function, so it can do the same thing.Signed-off-by: Eric Paris
Acked-by: Arnaldo Carvalho de Melo
Signed-off-by: David S. Miller
13 Oct, 2009
2 commits
-
Meaning receive multiple messages, reducing the number of syscalls and
net stack entry/exit operations.Next patches will introduce mechanisms where protocols that want to
optimize this operation will provide an unlocked_recvmsg operation.This takes into account comments made by:
. Paul Moore: sock_recvmsg is called only for the first datagram,
sock_recvmsg_nosec is used for the rest.. Caitlin Bestler: recvmmsg now has a struct timespec timeout, that
works in the same fashion as the ppoll one.If the underlying protocol returns a datagram with MSG_OOB set, this
will make recvmmsg return right away with as many datagrams (+ the OOB
one) it has received so far.. Rémi Denis-Courmont & Steven Whitehouse: If we receive N < vlen
datagrams and then recvmsg returns an error, recvmmsg will return
the successfully received datagrams, store the error and return it
in the next call.This paves the way for a subsequent optimization, sk_prot->unlocked_recvmsg,
where we will be able to acquire the lock only at batch start and end, not at
every underlying recvmsg call.Signed-off-by: Arnaldo Carvalho de Melo
Signed-off-by: David S. Miller -
Create a new socket level option to report number of queue overflows
Recently I augmented the AF_PACKET protocol to report the number of frames lost
on the socket receive queue between any two enqueued frames. This value was
exported via a SOL_PACKET level cmsg. AFter I completed that work it was
requested that this feature be generalized so that any datagram oriented socket
could make use of this option. As such I've created this patch, It creates a
new SOL_SOCKET level option called SO_RXQ_OVFL, which when enabled exports a
SOL_SOCKET level cmsg that reports the nubmer of times the sk_receive_queue
overflowed between any two given frames. It also augments the AF_PACKET
protocol to take advantage of this new feature (as it previously did not touch
sk->sk_drops, which this patch uses to record the overflow count). Tested
successfully by me.Notes:
1) Unlike my previous patch, this patch simply records the sk_drops value, which
is not a number of drops between packets, but rather a total number of drops.
Deltas must be computed in user space.2) While this patch currently works with datagram oriented protocols, it will
also be accepted by non-datagram oriented protocols. I'm not sure if thats
agreeable to everyone, but my argument in favor of doing so is that, for those
protocols which aren't applicable to this option, sk_drops will always be zero,
and reporting no drops on a receive queue that isn't used for those
non-participating protocols seems reasonable to me. This also saves us having
to code in a per-protocol opt in mechanism.3) This applies cleanly to net-next assuming that commit
977750076d98c7ff6cbda51858bb5a5894a9d9ab (my af packet cmsg patch) is revertedSigned-off-by: Neil Horman
Signed-off-by: Eric Dumazet
Signed-off-by: David S. Miller
10 Oct, 2009
1 commit
08 Oct, 2009
1 commit
-
Refactor wext to
* split out iwpriv handling
* split out iwspy handling
* split out procfs support
* allow cfg80211 to have wireless extensions compat code
w/o CONFIG_WIRELESS_EXTAfter this, drivers need to
- select WIRELESS_EXT - for wext support
- select WEXT_PRIV - for iwpriv support
- select WEXT_SPY - for iwspy supportexcept cfg80211 -- which gets new hooks in wext-core.c
and can then get wext handlers without CONFIG_WIRELESS_EXT.Wireless extensions procfs support is auto-selected
based on PROC_FS and anything that requires the wext core
(i.e. WIRELESS_EXT or CFG80211_WEXT).Signed-off-by: Johannes Berg
Signed-off-by: John W. Linville
07 Oct, 2009
1 commit
-
An incoming datagram must bring into cpu cache *lot* of cache lines,
in particular : (other parts omitted (hash chains, ip route cache...))On 32bit arches :
offsetof(struct sock, sk_rcvbuf) =0x30 (read)
offsetof(struct sock, sk_lock) =0x34 (rw)offsetof(struct sock, sk_sleep) =0x50 (read)
offsetof(struct sock, sk_rmem_alloc) =0x64 (rw)
offsetof(struct sock, sk_receive_queue)=0x74 (rw)offsetof(struct sock, sk_forward_alloc)=0x98 (rw)
offsetof(struct sock, sk_callback_lock)=0xcc (rw)
offsetof(struct sock, sk_drops) =0xd8 (read if we add dropcount support, rw if frame dropped)
offsetof(struct sock, sk_filter) =0xf8 (read)offsetof(struct sock, sk_socket) =0x138 (read)
offsetof(struct sock, sk_data_ready) =0x15c (read)
We can avoid sk->sk_socket and socket->fasync_list referencing on sockets
with no fasync() structures. (socket->fasync_list ptr is probably already in cache
because it shares a cache line with socket->wait, ie location pointed by sk->sk_sleep)This avoids one cache line load per incoming packet for common cases (no fasync())
We can leave (or even move in a future patch) sk->sk_socket in a cold location
Signed-off-by: Eric Dumazet
Signed-off-by: David S. Miller
01 Oct, 2009
1 commit
-
This provides safety against negative optlen at the type
level instead of depending upon (sometimes non-trivial)
checks against this sprinkled all over the the place, in
each and every implementation.Based upon work done by Arjan van de Ven and feedback
from Linus Torvalds.Signed-off-by: David S. Miller
29 Sep, 2009
1 commit
-
The sys_socketcall() function has a very clever system for the copy
size of its arguments. Unfortunately, gcc cannot deal with this in
terms of proving that the copy_from_user() is then always in bounds.
This is the last (well 9th of this series, but last in the kernel) such
case around.With this patch, we can turn on code to make having the boundary provably
right for the whole kernel, and detect introduction of new security
accidents of this type early on.Signed-off-by: Arjan van de Ven
Signed-off-by: David S. Miller
23 Sep, 2009
1 commit
-
Move various magic-number definitions into magic.h.
Signed-off-by: Nick Black
Acked-by: Pekka Enberg
Cc: Al Viro
Cc: "David S. Miller"
Cc: Casey Schaufler
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
22 Sep, 2009
1 commit
-
Signed-off-by: Alexey Dobriyan
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
15 Sep, 2009
1 commit
-
struct socket has a 16 bit hole that triggers kmemcheck warnings.
As suggested by Ingo, use kmemcheck annotations
Signed-off-by: Eric Dumazet
Acked-by: Ingo Molnar
Signed-off-by: David S. Miller
14 Aug, 2009
1 commit
-
kernel_sendpage() does the proper default case handling for when the
socket doesn't have a native sendpage implementation.Now, arguably this might be something that we could instead solve by
just specifying that all protocols should do it themselves at the
protocol level, but we really only care about the common protocols.
Does anybody really care about sendpage on something like Appletalk? Not
likely.Acked-by: David S. Miller
Acked-by: Julien TINNES
Acked-by: Tavis Ormandy
Cc: stable@kernel.org
Signed-off-by: Linus Torvalds
07 Apr, 2009
1 commit
-
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6:
b44: Use kernel DMA addresses for the kernel DMA API
forcedeth: Fix resume from hibernation regression.
xfrm: fix fragmentation on inter family tunnels
ibm_newemac: Fix dangerous struct assumption
gigaset: documentation update
gigaset: in file ops, check for device disconnect before anything else
bas_gigaset: use tasklet_hi_schedule for timing critical tasklets
net/802/fddi.c: add MODULE_LICENSE
smsc911x: remove unused #include
axnet_cs: fix phy_id detection for bogus Asix chip.
bnx2: Use request_firmware()
b44: Fix sizes passed to b44_sync_dma_desc_for_{device,cpu}()
socket: use percpu_add() while updating sockets_in_use
virtio_net: Set the mac config only when VIRITO_NET_F_MAC
myri_sbus: use request_firmware
e1000: fix loss of multicast packets
vxge: should include tcp.hConflict in firmware/WHENCE (SCSI vs net firmware)
05 Apr, 2009
1 commit
-
sock_alloc() currently uses following code to update sockets_in_use
get_cpu_var(sockets_in_use)++;
put_cpu_var(sockets_in_use);This translates to :
c0436274: b8 01 00 00 00 mov $0x1,%eax
c0436279: e8 42 40 df ff call c022a2c0
c043627e: bb 20 4f 6a c0 mov $0xc06a4f20,%ebx
c0436283: e8 18 ca f0 ff call c0342ca0
c0436288: 03 1c 85 60 4a 65 c0 add -0x3f9ab5a0(,%eax,4),%ebx
c043628f: ff 03 incl (%ebx)
c0436291: b8 01 00 00 00 mov $0x1,%eax
c0436296: e8 75 3f df ff call c022a210
c043629b: 89 e0 mov %esp,%eax
c043629d: 25 00 e0 ff ff and $0xffffe000,%eax
c04362a2: f6 40 08 08 testb $0x8,0x8(%eax)
c04362a6: 75 07 jne c04362af
c04362a8: 8d 46 d8 lea -0x28(%esi),%eax
c04362ab: 5b pop %ebx
c04362ac: 5e pop %esi
c04362ad: c9 leave
c04362ae: c3 ret
c04362af: e8 cc 5d 09 00 call c04cc080
c04362b4: 8d 74 26 00 lea 0x0(%esi,%eiz,1),%esi
c04362b8: eb ee jmp c04362a8While percpu_add(sockets_in_use, 1) translates to a single instruction :
c0436275: 64 83 05 20 5f 6a c0 addl $0x1,%fs:0xc06a5f20
Signed-off-by: Eric Dumazet
Signed-off-by: David S. Miller
