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Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6

Browse source 
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6:
  net: Kill ratelimit.h dependency in linux/net.h
  net: Add linux/sysctl.h includes where needed.
  net: Kill ether_table[] declaration.
  inetpeer: fix race in unused_list manipulations
  atm: expose ATM device index in sysfs
  IPVS: bug in ip_vs_ftp, same list heaad used in all netns.
  bug.h: Move ratelimit warn interfaces to ratelimit.h
  bonding: cleanup module option descriptions
  net:8021q:vlan.c Fix pr_info to just give the vlan fullname and version.
  net: davinci_emac: fix dev_err use at probe
  can: convert to %pK for kptr_restrict support
  net: fix ETHTOOL_SFEATURES compatibility with old ethtool_ops.set_flags
  netfilter: Fix several warnings in compat_mtw_from_user().
  netfilter: ipset: fix ip_set_flush return code
  netfilter: ipset: remove unused variable from type_pf_tdel()
  netfilter: ipset: Use proper timeout value to jiffies conversion
This commit is contained in:
Linus Torvalds 2011-05-27 11:16:27 -07:00
commit 10799db60c
23 changed files with 189 additions and 119 deletions
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34
drivers/net/bonding/bond_main.c
View file

@ -113,9 +113,11 @@ MODULE_PARM_DESC(max_bonds, "Max number of bonded devices");
module_param(tx_queues, int, 0);
MODULE_PARM_DESC(tx_queues, "Max number of transmit queues (default = 16)");
module_param_named(num_grat_arp, num_peer_notif, int, 0644);
MODULE_PARM_DESC(num_grat_arp, "Number of peer notifications to send on failover event (alias of num_unsol_na)");
MODULE_PARM_DESC(num_grat_arp, "Number of peer notifications to send on "
"failover event (alias of num_unsol_na)");
module_param_named(num_unsol_na, num_peer_notif, int, 0644);
MODULE_PARM_DESC(num_unsol_na, "Number of peer notifications to send on failover event (alias of num_grat_arp)");
MODULE_PARM_DESC(num_unsol_na, "Number of peer notifications to send on "
"failover event (alias of num_grat_arp)");
module_param(miimon, int, 0);
MODULE_PARM_DESC(miimon, "Link check interval in milliseconds");
module_param(updelay, int, 0);
@ -127,7 +129,7 @@ module_param(use_carrier, int, 0);
MODULE_PARM_DESC(use_carrier, "Use netif_carrier_ok (vs MII ioctls) in miimon; "
"0 for off, 1 for on (default)");
module_param(mode, charp, 0);
MODULE_PARM_DESC(mode, "Mode of operation : 0 for balance-rr, "
MODULE_PARM_DESC(mode, "Mode of operation; 0 for balance-rr, "
"1 for active-backup, 2 for balance-xor, "
"3 for broadcast, 4 for 802.3ad, 5 for balance-tlb, "
"6 for balance-alb");
@ -142,27 +144,35 @@ MODULE_PARM_DESC(primary_reselect, "Reselect primary slave "
"2 for only on active slave "
"failure");
module_param(lacp_rate, charp, 0);
MODULE_PARM_DESC(lacp_rate, "LACPDU tx rate to request from 802.3ad partner "
"(slow/fast)");
MODULE_PARM_DESC(lacp_rate, "LACPDU tx rate to request from 802.3ad partner; "
"0 for slow, 1 for fast");
module_param(ad_select, charp, 0);
MODULE_PARM_DESC(ad_select, "803.ad aggregation selection logic: stable (0, default), bandwidth (1), count (2)");
MODULE_PARM_DESC(ad_select, "803.ad aggregation selection logic; "
"0 for stable (default), 1 for bandwidth, "
"2 for count");
module_param(xmit_hash_policy, charp, 0);
MODULE_PARM_DESC(xmit_hash_policy, "XOR hashing method: 0 for layer 2 (default)"
", 1 for layer 3+4");
MODULE_PARM_DESC(xmit_hash_policy, "balance-xor and 802.3ad hashing method; "
"0 for layer 2 (default), 1 for layer 3+4, "
"2 for layer 2+3");
module_param(arp_interval, int, 0);
MODULE_PARM_DESC(arp_interval, "arp interval in milliseconds");
module_param_array(arp_ip_target, charp, NULL, 0);
MODULE_PARM_DESC(arp_ip_target, "arp targets in n.n.n.n form");
module_param(arp_validate, charp, 0);
MODULE_PARM_DESC(arp_validate, "validate src/dst of ARP probes: none (default), active, backup or all");
MODULE_PARM_DESC(arp_validate, "validate src/dst of ARP probes; "
"0 for none (default), 1 for active, "
"2 for backup, 3 for all");
module_param(fail_over_mac, charp, 0);
MODULE_PARM_DESC(fail_over_mac, "For active-backup, do not set all slaves to the same MAC. none (default), active or follow");
MODULE_PARM_DESC(fail_over_mac, "For active-backup, do not set all slaves to "
"the same MAC; 0 for none (default), "
"1 for active, 2 for follow");
module_param(all_slaves_active, int, 0);
MODULE_PARM_DESC(all_slaves_active, "Keep all frames received on an interface"
"by setting active flag for all slaves. "
"by setting active flag for all slaves; "
"0 for never (default), 1 for always.");
module_param(resend_igmp, int, 0);
MODULE_PARM_DESC(resend_igmp, "Number of IGMP membership reports to send on link failure");
MODULE_PARM_DESC(resend_igmp, "Number of IGMP membership reports to send on "
"link failure");
/*----------------------------- Global variables ----------------------------*/

22
drivers/net/davinci_emac.c
View file

@ -1772,7 +1772,7 @@ static int __devinit davinci_emac_probe(struct platform_device *pdev)
/* obtain emac clock from kernel */
emac_clk = clk_get(&pdev->dev, NULL);
if (IS_ERR(emac_clk)) {
printk(KERN_ERR "DaVinci EMAC: Failed to get EMAC clock\n");
dev_err(&pdev->dev, "failed to get EMAC clock\n");
return -EBUSY;
}
emac_bus_frequency = clk_get_rate(emac_clk);
@ -1780,7 +1780,7 @@ static int __devinit davinci_emac_probe(struct platform_device *pdev)
ndev = alloc_etherdev(sizeof(struct emac_priv));
if (!ndev) {
printk(KERN_ERR "DaVinci EMAC: Error allocating net_device\n");
dev_err(&pdev->dev, "error allocating net_device\n");
clk_put(emac_clk);
return -ENOMEM;
}
@ -1795,7 +1795,7 @@ static int __devinit davinci_emac_probe(struct platform_device *pdev)
pdata = pdev->dev.platform_data;
if (!pdata) {
printk(KERN_ERR "DaVinci EMAC: No platform data\n");
dev_err(&pdev->dev, "no platform data\n");
return -ENODEV;
}
@ -1814,7 +1814,7 @@ static int __devinit davinci_emac_probe(struct platform_device *pdev)
/* Get EMAC platform data */
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
if (!res) {
dev_err(emac_dev, "DaVinci EMAC: Error getting res\n");
dev_err(&pdev->dev,"error getting res\n");
rc = -ENOENT;
goto probe_quit;
}
@ -1822,14 +1822,14 @@ static int __devinit davinci_emac_probe(struct platform_device *pdev)
priv->emac_base_phys = res->start + pdata->ctrl_reg_offset;
size = res->end - res->start + 1;
if (!request_mem_region(res->start, size, ndev->name)) {
dev_err(emac_dev, "DaVinci EMAC: failed request_mem_region() for regs\n");
dev_err(&pdev->dev, "failed request_mem_region() for regs\n");
rc = -ENXIO;
goto probe_quit;
}
priv->remap_addr = ioremap(res->start, size);
if (!priv->remap_addr) {
dev_err(emac_dev, "Unable to map IO\n");
dev_err(&pdev->dev, "unable to map IO\n");
rc = -ENOMEM;
release_mem_region(res->start, size);
goto probe_quit;
@ -1863,7 +1863,7 @@ static int __devinit davinci_emac_probe(struct platform_device *pdev)
priv->dma = cpdma_ctlr_create(&dma_params);
if (!priv->dma) {
dev_err(emac_dev, "DaVinci EMAC: Error initializing DMA\n");
dev_err(&pdev->dev, "error initializing DMA\n");
rc = -ENOMEM;
goto no_dma;
}
@ -1879,7 +1879,7 @@ static int __devinit davinci_emac_probe(struct platform_device *pdev)
res = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
if (!res) {
dev_err(emac_dev, "DaVinci EMAC: Error getting irq res\n");
dev_err(&pdev->dev, "error getting irq res\n");
rc = -ENOENT;
goto no_irq_res;
}
@ -1888,8 +1888,8 @@ static int __devinit davinci_emac_probe(struct platform_device *pdev)
if (!is_valid_ether_addr(priv->mac_addr)) {
/* Use random MAC if none passed */
random_ether_addr(priv->mac_addr);
printk(KERN_WARNING "%s: using random MAC addr: %pM\n",
__func__, priv->mac_addr);
dev_warn(&pdev->dev, "using random MAC addr: %pM\n",
priv->mac_addr);
}
ndev->netdev_ops = &emac_netdev_ops;
@ -1902,7 +1902,7 @@ static int __devinit davinci_emac_probe(struct platform_device *pdev)
SET_NETDEV_DEV(ndev, &pdev->dev);
rc = register_netdev(ndev);
if (rc) {
dev_err(emac_dev, "DaVinci EMAC: Error in register_netdev\n");
dev_err(&pdev->dev, "error in register_netdev\n");
rc = -ENODEV;
goto netdev_reg_err;
}

40
include/asm-generic/bug.h
View file

@ -162,46 +162,6 @@ extern void warn_slowpath_null(const char *file, const int line);
unlikely(__ret_warn_once); \
})
#ifdef CONFIG_PRINTK
#define WARN_ON_RATELIMIT(condition, state) \
WARN_ON((condition) && __ratelimit(state))
#define __WARN_RATELIMIT(condition, state, format...) \
({ \
int rtn = 0; \
if (unlikely(__ratelimit(state))) \
rtn = WARN(condition, format); \
rtn; \
})
#define WARN_RATELIMIT(condition, format...) \
({ \
static DEFINE_RATELIMIT_STATE(_rs, \
DEFAULT_RATELIMIT_INTERVAL, \
DEFAULT_RATELIMIT_BURST); \
__WARN_RATELIMIT(condition, &_rs, format); \
})
#else
#define WARN_ON_RATELIMIT(condition, state) \
WARN_ON(condition)
#define __WARN_RATELIMIT(condition, state, format...) \
({ \
int rtn = WARN(condition, format); \
rtn; \
})
#define WARN_RATELIMIT(condition, format...) \
({ \
int rtn = WARN(condition, format); \
rtn; \
})
#endif
/*
* WARN_ON_SMP() is for cases that the warning is either
* meaningless for !SMP or may even cause failures.

4
include/linux/if_ether.h
View file

@ -132,10 +132,6 @@ static inline struct ethhdr *eth_hdr(const struct sk_buff *skb)
int eth_header_parse(const struct sk_buff *skb, unsigned char *haddr);
#ifdef CONFIG_SYSCTL
extern struct ctl_table ether_table[];
#endif
int mac_pton(const char *s, u8 *mac);
extern ssize_t sysfs_format_mac(char *buf, const unsigned char *addr, int len);

6
include/linux/net.h
View file

@ -289,11 +289,5 @@ extern int kernel_sock_shutdown(struct socket *sock,
MODULE_ALIAS("net-pf-" __stringify(pf) "-proto-" __stringify(proto) \
"-type-" __stringify(type))
#ifdef CONFIG_SYSCTL
#include <linux/sysctl.h>
#include <linux/ratelimit.h>
extern struct ratelimit_state net_ratelimit_state;
#endif
#endif /* __KERNEL__ */
#endif /* _LINUX_NET_H */

1
include/linux/netfilter.h
View file

@ -13,6 +13,7 @@
#endif
#include <linux/types.h>
#include <linux/compiler.h>
#include <linux/sysctl.h>
/* Responses from hook functions. */
#define NF_DROP 0

4
include/linux/netfilter/ipset/ip_set_ahash.h
View file

@ -839,7 +839,7 @@ type_pf_tdel(struct ip_set *set, void *value, u32 timeout)
struct htable *t = h->table;
const struct type_pf_elem *d = value;
struct hbucket *n;
int i, ret = 0;
int i;
struct type_pf_elem *data;
u32 key;
@ -850,7 +850,7 @@ type_pf_tdel(struct ip_set *set, void *value, u32 timeout)
if (!type_pf_data_equal(data, d))
continue;
if (type_pf_data_expired(data))
ret = -IPSET_ERR_EXIST;
return -IPSET_ERR_EXIST;
if (i != n->pos - 1)
/* Not last one */
type_pf_data_copy(data, ahash_tdata(n, n->pos - 1));

18
include/linux/netfilter/ipset/ip_set_timeout.h
View file

@ -45,7 +45,7 @@ ip_set_timeout_test(unsigned long timeout)
{
return timeout != IPSET_ELEM_UNSET &&
(timeout == IPSET_ELEM_PERMANENT ||
time_after(timeout, jiffies));
time_is_after_jiffies(timeout));
}
static inline bool
@ -53,7 +53,7 @@ ip_set_timeout_expired(unsigned long timeout)
{
return timeout != IPSET_ELEM_UNSET &&
timeout != IPSET_ELEM_PERMANENT &&
time_before(timeout, jiffies);
time_is_before_jiffies(timeout);
}
static inline unsigned long
@ -64,7 +64,7 @@ ip_set_timeout_set(u32 timeout)
if (!timeout)
return IPSET_ELEM_PERMANENT;
t = timeout * HZ + jiffies;
t = msecs_to_jiffies(timeout * 1000) + jiffies;
if (t == IPSET_ELEM_UNSET || t == IPSET_ELEM_PERMANENT)
/* Bingo! */
t++;
@ -75,7 +75,8 @@ ip_set_timeout_set(u32 timeout)
static inline u32
ip_set_timeout_get(unsigned long timeout)
{
return timeout == IPSET_ELEM_PERMANENT ? 0 : (timeout - jiffies)/HZ;
return timeout == IPSET_ELEM_PERMANENT ? 0 :
jiffies_to_msecs(timeout - jiffies)/1000;
}
#else
@ -89,14 +90,14 @@ static inline bool
ip_set_timeout_test(unsigned long timeout)
{
return timeout == IPSET_ELEM_PERMANENT ||
time_after(timeout, jiffies);
time_is_after_jiffies(timeout);
}
static inline bool
ip_set_timeout_expired(unsigned long timeout)
{
return timeout != IPSET_ELEM_PERMANENT &&
time_before(timeout, jiffies);
time_is_before_jiffies(timeout);
}
static inline unsigned long
@ -107,7 +108,7 @@ ip_set_timeout_set(u32 timeout)
if (!timeout)
return IPSET_ELEM_PERMANENT;
t = timeout * HZ + jiffies;
t = msecs_to_jiffies(timeout * 1000) + jiffies;
if (t == IPSET_ELEM_PERMANENT)
/* Bingo! :-) */
t++;
@ -118,7 +119,8 @@ ip_set_timeout_set(u32 timeout)
static inline u32
ip_set_timeout_get(unsigned long timeout)
{
return timeout == IPSET_ELEM_PERMANENT ? 0 : (timeout - jiffies)/HZ;
return timeout == IPSET_ELEM_PERMANENT ? 0 :
jiffies_to_msecs(timeout - jiffies)/1000;
}
#endif /* ! IP_SET_BITMAP_TIMEOUT */

40
include/linux/ratelimit.h
View file

@ -41,4 +41,44 @@ extern struct ratelimit_state printk_ratelimit_state;
extern int ___ratelimit(struct ratelimit_state *rs, const char *func);
#define __ratelimit(state) ___ratelimit(state, __func__)
#ifdef CONFIG_PRINTK
#define WARN_ON_RATELIMIT(condition, state) \
WARN_ON((condition) && __ratelimit(state))
#define __WARN_RATELIMIT(condition, state, format...) \
({ \
int rtn = 0; \
if (unlikely(__ratelimit(state))) \
rtn = WARN(condition, format); \
rtn; \
})
#define WARN_RATELIMIT(condition, format...) \
({ \
static DEFINE_RATELIMIT_STATE(_rs, \
DEFAULT_RATELIMIT_INTERVAL, \
DEFAULT_RATELIMIT_BURST); \
__WARN_RATELIMIT(condition, &_rs, format); \
})
#else
#define WARN_ON_RATELIMIT(condition, state) \
WARN_ON(condition)
#define __WARN_RATELIMIT(condition, state, format...) \
({ \
int rtn = WARN(condition, format); \
rtn; \
})
#define WARN_RATELIMIT(condition, format...) \
({ \
int rtn = WARN(condition, format); \
rtn; \
})
#endif
#endif /* _LINUX_RATELIMIT_H */

3
include/net/ip_vs.h
View file

@ -797,7 +797,8 @@ struct netns_ipvs {
struct list_head rs_table[IP_VS_RTAB_SIZE];
/* ip_vs_app */
struct list_head app_list;
/* ip_vs_ftp */
struct ip_vs_app *ftp_app;
/* ip_vs_proto */
#define IP_VS_PROTO_TAB_SIZE 32 /* must be power of 2 */
struct ip_vs_proto_data *proto_data_table[IP_VS_PROTO_TAB_SIZE];

1
include/net/net_namespace.h
View file

@ -7,6 +7,7 @@
#include <asm/atomic.h>
#include <linux/workqueue.h>
#include <linux/list.h>
#include <linux/sysctl.h>
#include <net/netns/core.h>
#include <net/netns/mib.h>

8
include/net/net_ratelimit.h Normal file
View file

@ -0,0 +1,8 @@
#ifndef _LINUX_NET_RATELIMIT_H
#define _LINUX_NET_RATELIMIT_H
#include <linux/ratelimit.h>
extern struct ratelimit_state net_ratelimit_state;
#endif /* _LINUX_NET_RATELIMIT_H */

5
net/8021q/vlan.c
View file

@ -46,8 +46,6 @@ int vlan_net_id __read_mostly;
const char vlan_fullname[] = "802.1Q VLAN Support";
const char vlan_version[] = DRV_VERSION;
static const char vlan_copyright[] = "Ben Greear <greearb@candelatech.com>";
static const char vlan_buggyright[] = "David S. Miller <davem@redhat.com>";
/* End of global variables definitions. */
@ -673,8 +671,7 @@ static int __init vlan_proto_init(void)
{
int err;
pr_info("%s v%s %s\n", vlan_fullname, vlan_version, vlan_copyright);
pr_info("All bugs added by %s\n", vlan_buggyright);
pr_info("%s v%s\n", vlan_fullname, vlan_version);
err = register_pernet_subsys(&vlan_net_ops);
if (err < 0)

10
net/atm/atm_sysfs.c
View file

@ -59,6 +59,14 @@ static ssize_t show_atmaddress(struct device *cdev,
return pos - buf;
}
static ssize_t show_atmindex(struct device *cdev,
struct device_attribute *attr, char *buf)
{
struct atm_dev *adev = to_atm_dev(cdev);
return sprintf(buf, "%d\n", adev->number);
}
static ssize_t show_carrier(struct device *cdev,
struct device_attribute *attr, char *buf)
{
@ -99,6 +107,7 @@ static ssize_t show_link_rate(struct device *cdev,
static DEVICE_ATTR(address, S_IRUGO, show_address, NULL);
static DEVICE_ATTR(atmaddress, S_IRUGO, show_atmaddress, NULL);
static DEVICE_ATTR(atmindex, S_IRUGO, show_atmindex, NULL);
static DEVICE_ATTR(carrier, S_IRUGO, show_carrier, NULL);
static DEVICE_ATTR(type, S_IRUGO, show_type, NULL);
static DEVICE_ATTR(link_rate, S_IRUGO, show_link_rate, NULL);
@ -106,6 +115,7 @@ static DEVICE_ATTR(link_rate, S_IRUGO, show_link_rate, NULL);
static struct device_attribute *atm_attrs[] = {
&dev_attr_atmaddress,
&dev_attr_address,
&dev_attr_atmindex,
&dev_attr_carrier,
&dev_attr_type,
&dev_attr_link_rate,

6
net/bridge/netfilter/ebtables.c
View file

@ -1883,14 +1883,13 @@ static int compat_mtw_from_user(struct compat_ebt_entry_mwt *mwt,
struct xt_target *wt;
void *dst = NULL;
int off, pad = 0;
unsigned int size_kern, entry_offset, match_size = mwt->match_size;
unsigned int size_kern, match_size = mwt->match_size;
strlcpy(name, mwt->u.name, sizeof(name));
if (state->buf_kern_start)
dst = state->buf_kern_start + state->buf_kern_offset;
entry_offset = (unsigned char *) mwt - base;
switch (compat_mwt) {
case EBT_COMPAT_MATCH:
match = try_then_request_module(xt_find_match(NFPROTO_BRIDGE,
@ -1933,6 +1932,9 @@ static int compat_mtw_from_user(struct compat_ebt_entry_mwt *mwt,
size_kern = wt->targetsize;
module_put(wt->me);
break;
default:
return -EINVAL;
}
state->buf_kern_offset += match_size + off;

7
net/can/proc.c
View file

@ -204,12 +204,11 @@ static void can_print_rcvlist(struct seq_file *m, struct hlist_head *rx_list,
hlist_for_each_entry_rcu(r, n, rx_list, list) {
char *fmt = (r->can_id & CAN_EFF_FLAG)?
" %-5s %08X %08x %08x %08x %8ld %s\n" :
" %-5s %03X %08x %08lx %08lx %8ld %s\n";
" %-5s %08x %08x %pK %pK %8ld %s\n" :
" %-5s %03x %08x %pK %pK %8ld %s\n";
seq_printf(m, fmt, DNAME(dev), r->can_id, r->mask,
(unsigned long)r->func, (unsigned long)r->data,
r->matches, r->ident);
r->func, r->data, r->matches, r->ident);
}
}

25
net/core/ethtool.c
View file

@ -233,6 +233,29 @@ static int ethtool_set_feature_compat(struct net_device *dev,
return 1;
}
static int ethtool_set_flags_compat(struct net_device *dev,
int (*legacy_set)(struct net_device *, u32),
struct ethtool_set_features_block *features, u32 mask)
{
u32 value;
if (!legacy_set)
return 0;
if (!(features[0].valid & mask))
return 0;
value = dev->features & ~features[0].valid;
value |= features[0].requested;
features[0].valid &= ~mask;
if (legacy_set(dev, value & mask) < 0)
netdev_info(dev, "Legacy flags change failed\n");
return 1;
}
static int ethtool_set_features_compat(struct net_device *dev,
struct ethtool_set_features_block *features)
{
@ -249,7 +272,7 @@ static int ethtool_set_features_compat(struct net_device *dev,
features, NETIF_F_ALL_TSO);
compat |= ethtool_set_feature_compat(dev, dev->ethtool_ops->set_rx_csum,
features, NETIF_F_RXCSUM);
compat |= ethtool_set_feature_compat(dev, dev->ethtool_ops->set_flags,
compat |= ethtool_set_flags_compat(dev, dev->ethtool_ops->set_flags,
features, flags_dup_features);
return compat;

1
net/core/filter.c
View file

@ -38,6 +38,7 @@
#include <asm/unaligned.h>
#include <linux/filter.h>
#include <linux/reciprocal_div.h>
#include <linux/ratelimit.h>
/* No hurry in this branch */
static void *__load_pointer(const struct sk_buff *skb, int k, unsigned int size)

1
net/core/sysctl_net_core.c
View file

@ -17,6 +17,7 @@
#include <net/ip.h>
#include <net/sock.h>
#include <net/net_ratelimit.h>
#ifdef CONFIG_RPS
static int rps_sock_flow_sysctl(ctl_table *table, int write,

1
net/core/utils.c
View file

@ -27,6 +27,7 @@
#include <linux/ratelimit.h>
#include <net/sock.h>
#include <net/net_ratelimit.h>
#include <asm/byteorder.h>
#include <asm/system.h>

42
net/ipv4/inetpeer.c
View file

@ -154,11 +154,9 @@ void __init inet_initpeers(void)
/* Called with or without local BH being disabled. */
static void unlink_from_unused(struct inet_peer *p)
{
if (!list_empty(&p->unused)) {
spin_lock_bh(&unused_peers.lock);
list_del_init(&p->unused);
spin_unlock_bh(&unused_peers.lock);
}
spin_lock_bh(&unused_peers.lock);
list_del_init(&p->unused);
spin_unlock_bh(&unused_peers.lock);
}
static int addr_compare(const struct inetpeer_addr *a,
@ -205,6 +203,20 @@ static int addr_compare(const struct inetpeer_addr *a,
u; \
})
static bool atomic_add_unless_return(atomic_t *ptr, int a, int u, int *newv)
{
int cur, old = atomic_read(ptr);
while (old != u) {
*newv = old + a;
cur = atomic_cmpxchg(ptr, old, *newv);
if (cur == old)
return true;
old = cur;
}
return false;
}
/*
* Called with rcu_read_lock()
* Because we hold no lock against a writer, its quite possible we fall
@ -213,7 +225,8 @@ static int addr_compare(const struct inetpeer_addr *a,
* We exit from this function if number of links exceeds PEER_MAXDEPTH
*/
static struct inet_peer *lookup_rcu(const struct inetpeer_addr *daddr,
struct inet_peer_base *base)
struct inet_peer_base *base,
int *newrefcnt)
{
struct inet_peer *u = rcu_dereference(base->root);
int count = 0;
@ -226,7 +239,7 @@ static struct inet_peer *lookup_rcu(const struct inetpeer_addr *daddr,
* distinction between an unused entry (refcnt=0) and
* a freed one.
*/
if (unlikely(!atomic_add_unless(&u->refcnt, 1, -1)))
if (!atomic_add_unless_return(&u->refcnt, 1, -1, newrefcnt))
u = NULL;
return u;
}
@ -465,22 +478,23 @@ struct inet_peer *inet_getpeer(struct inetpeer_addr *daddr, int create)
struct inet_peer_base *base = family_to_base(daddr->family);
struct inet_peer *p;
unsigned int sequence;
int invalidated;
int invalidated, newrefcnt = 0;
/* Look up for the address quickly, lockless.
* Because of a concurrent writer, we might not find an existing entry.
*/
rcu_read_lock();
sequence = read_seqbegin(&base->lock);
p = lookup_rcu(daddr, base);
p = lookup_rcu(daddr, base, &newrefcnt);
invalidated = read_seqretry(&base->lock, sequence);
rcu_read_unlock();
if (p) {
/* The existing node has been found.
found: /* The existing node has been found.
* Remove the entry from unused list if it was there.
*/
unlink_from_unused(p);
if (newrefcnt == 1)
unlink_from_unused(p);
return p;
}
@ -494,11 +508,9 @@ struct inet_peer *inet_getpeer(struct inetpeer_addr *daddr, int create)
write_seqlock_bh(&base->lock);
p = lookup(daddr, stack, base);
if (p != peer_avl_empty) {
atomic_inc(&p->refcnt);
newrefcnt = atomic_inc_return(&p->refcnt);
write_sequnlock_bh(&base->lock);
/* Remove the entry from unused list if it was there. */
unlink_from_unused(p);
return p;
goto found;
}
p = create ? kmem_cache_alloc(peer_cachep, GFP_ATOMIC) : NULL;
if (p) {

2
net/netfilter/ipset/ip_set_core.c
View file

@ -815,7 +815,7 @@ ip_set_flush(struct sock *ctnl, struct sk_buff *skb,
ip_set_id_t i;
if (unlikely(protocol_failed(attr)))
return -EPROTO;
return -IPSET_ERR_PROTOCOL;
if (!attr[IPSET_ATTR_SETNAME]) {
for (i = 0; i < ip_set_max; i++)

27
net/netfilter/ipvs/ip_vs_ftp.c
View file

@ -411,25 +411,35 @@ static struct ip_vs_app ip_vs_ftp = {
static int __net_init __ip_vs_ftp_init(struct net *net)
{
int i, ret;
struct ip_vs_app *app = &ip_vs_ftp;
struct ip_vs_app *app;
struct netns_ipvs *ipvs = net_ipvs(net);
app = kmemdup(&ip_vs_ftp, sizeof(struct ip_vs_app), GFP_KERNEL);
if (!app)
return -ENOMEM;
INIT_LIST_HEAD(&app->a_list);
INIT_LIST_HEAD(&app->incs_list);
ipvs->ftp_app = app;
ret = register_ip_vs_app(net, app);
if (ret)
return ret;
goto err_exit;
for (i=0; i<IP_VS_APP_MAX_PORTS; i++) {
if (!ports[i])
continue;
ret = register_ip_vs_app_inc(net, app, app->protocol, ports[i]);
if (ret)
break;
goto err_unreg;
pr_info("%s: loaded support on port[%d] = %d\n",
app->name, i, ports[i]);
}
return 0;
if (ret)
unregister_ip_vs_app(net, app);
err_unreg:
unregister_ip_vs_app(net, app);
err_exit:
kfree(ipvs->ftp_app);
return ret;
}
/*
@ -437,9 +447,10 @@ static int __net_init __ip_vs_ftp_init(struct net *net)
*/
static void __ip_vs_ftp_exit(struct net *net)
{
struct ip_vs_app *app = &ip_vs_ftp;
struct netns_ipvs *ipvs = net_ipvs(net);
unregister_ip_vs_app(net, app);
unregister_ip_vs_app(net, ipvs->ftp_app);
kfree(ipvs->ftp_app);
}
static struct pernet_operations ip_vs_ftp_ops = {