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authorEric Dumazet <eric.dumazet@gmail.com>2010-06-22 20:58:41 +0000
committerDavid S. Miller <davem@davemloft.net>2010-06-25 21:33:17 -0700
commit1823e4c80eeae2a774c75569ce3035070e5ee009 (patch)
treebdc1bdf4a67027193312ad584924ca8a986a064c
parent5eaa0bd81f93225b6d1972b373ed00ca763052b2 (diff)
downloadop-kernel-dev-1823e4c80eeae2a774c75569ce3035070e5ee009.zip
op-kernel-dev-1823e4c80eeae2a774c75569ce3035070e5ee009.tar.gz
snmp: add align parameter to snmp_mib_init()
In preparation for 64bit snmp counters for some mibs, add an 'align' parameter to snmp_mib_init(), instead of assuming mibs only contain 'unsigned long' fields. Callers can use __alignof__(type) to provide correct alignment. Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> CC: Herbert Xu <herbert@gondor.apana.org.au> CC: Arnaldo Carvalho de Melo <acme@ghostprotocols.net> CC: Hideaki YOSHIFUJI <yoshfuji@linux-ipv6.org> CC: Vlad Yasevich <vladislav.yasevich@hp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
-rw-r--r--include/net/ip.h2
-rw-r--r--net/dccp/proto.c3
-rw-r--r--net/ipv4/af_inet.c27
-rw-r--r--net/ipv6/addrconf.c9
-rw-r--r--net/ipv6/af_inet6.c15
-rw-r--r--net/sctp/protocol.c3
-rw-r--r--net/xfrm/xfrm_policy.c3
7 files changed, 40 insertions, 22 deletions
diff --git a/include/net/ip.h b/include/net/ip.h
index d52f011..3b524df 100644
--- a/include/net/ip.h
+++ b/include/net/ip.h
@@ -178,7 +178,7 @@ extern struct ipv4_config ipv4_config;
#define NET_ADD_STATS_USER(net, field, adnd) SNMP_ADD_STATS_USER((net)->mib.net_statistics, field, adnd)
extern unsigned long snmp_fold_field(void __percpu *mib[], int offt);
-extern int snmp_mib_init(void __percpu *ptr[2], size_t mibsize);
+extern int snmp_mib_init(void __percpu *ptr[2], size_t mibsize, size_t align);
extern void snmp_mib_free(void __percpu *ptr[2]);
extern struct local_ports {
diff --git a/net/dccp/proto.c b/net/dccp/proto.c
index f79bcef..096250d 100644
--- a/net/dccp/proto.c
+++ b/net/dccp/proto.c
@@ -1002,7 +1002,8 @@ EXPORT_SYMBOL_GPL(dccp_shutdown);
static inline int dccp_mib_init(void)
{
return snmp_mib_init((void __percpu **)dccp_statistics,
- sizeof(struct dccp_mib));
+ sizeof(struct dccp_mib),
+ __alignof__(struct dccp_mib));
}
static inline void dccp_mib_exit(void)
diff --git a/net/ipv4/af_inet.c b/net/ipv4/af_inet.c
index b4c0969..640db9b 100644
--- a/net/ipv4/af_inet.c
+++ b/net/ipv4/af_inet.c
@@ -1427,13 +1427,13 @@ unsigned long snmp_fold_field(void __percpu *mib[], int offt)
}
EXPORT_SYMBOL_GPL(snmp_fold_field);
-int snmp_mib_init(void __percpu *ptr[2], size_t mibsize)
+int snmp_mib_init(void __percpu *ptr[2], size_t mibsize, size_t align)
{
BUG_ON(ptr == NULL);
- ptr[0] = __alloc_percpu(mibsize, __alignof__(unsigned long));
+ ptr[0] = __alloc_percpu(mibsize, align);
if (!ptr[0])
goto err0;
- ptr[1] = __alloc_percpu(mibsize, __alignof__(unsigned long));
+ ptr[1] = __alloc_percpu(mibsize, align);
if (!ptr[1])
goto err1;
return 0;
@@ -1490,25 +1490,32 @@ static const struct net_protocol icmp_protocol = {
static __net_init int ipv4_mib_init_net(struct net *net)
{
if (snmp_mib_init((void __percpu **)net->mib.tcp_statistics,
- sizeof(struct tcp_mib)) < 0)
+ sizeof(struct tcp_mib),
+ __alignof__(struct tcp_mib)) < 0)
goto err_tcp_mib;
if (snmp_mib_init((void __percpu **)net->mib.ip_statistics,
- sizeof(struct ipstats_mib)) < 0)
+ sizeof(struct ipstats_mib),
+ __alignof__(struct ipstats_mib)) < 0)
goto err_ip_mib;
if (snmp_mib_init((void __percpu **)net->mib.net_statistics,
- sizeof(struct linux_mib)) < 0)
+ sizeof(struct linux_mib),
+ __alignof__(struct linux_mib)) < 0)
goto err_net_mib;
if (snmp_mib_init((void __percpu **)net->mib.udp_statistics,
- sizeof(struct udp_mib)) < 0)
+ sizeof(struct udp_mib),
+ __alignof__(struct udp_mib)) < 0)
goto err_udp_mib;
if (snmp_mib_init((void __percpu **)net->mib.udplite_statistics,
- sizeof(struct udp_mib)) < 0)
+ sizeof(struct udp_mib),
+ __alignof__(struct udp_mib)) < 0)
goto err_udplite_mib;
if (snmp_mib_init((void __percpu **)net->mib.icmp_statistics,
- sizeof(struct icmp_mib)) < 0)
+ sizeof(struct icmp_mib),
+ __alignof__(struct icmp_mib)) < 0)
goto err_icmp_mib;
if (snmp_mib_init((void __percpu **)net->mib.icmpmsg_statistics,
- sizeof(struct icmpmsg_mib)) < 0)
+ sizeof(struct icmpmsg_mib),
+ __alignof__(struct icmpmsg_mib)) < 0)
goto err_icmpmsg_mib;
tcp_mib_init(net);
diff --git a/net/ipv6/addrconf.c b/net/ipv6/addrconf.c
index b97bb1f..c20a7c2 100644
--- a/net/ipv6/addrconf.c
+++ b/net/ipv6/addrconf.c
@@ -284,13 +284,16 @@ static void addrconf_mod_timer(struct inet6_ifaddr *ifp,
static int snmp6_alloc_dev(struct inet6_dev *idev)
{
if (snmp_mib_init((void __percpu **)idev->stats.ipv6,
- sizeof(struct ipstats_mib)) < 0)
+ sizeof(struct ipstats_mib),
+ __alignof__(struct ipstats_mib)) < 0)
goto err_ip;
if (snmp_mib_init((void __percpu **)idev->stats.icmpv6,
- sizeof(struct icmpv6_mib)) < 0)
+ sizeof(struct icmpv6_mib),
+ __alignof__(struct icmpv6_mib)) < 0)
goto err_icmp;
if (snmp_mib_init((void __percpu **)idev->stats.icmpv6msg,
- sizeof(struct icmpv6msg_mib)) < 0)
+ sizeof(struct icmpv6msg_mib),
+ __alignof__(struct icmpv6msg_mib)) < 0)
goto err_icmpmsg;
return 0;
diff --git a/net/ipv6/af_inet6.c b/net/ipv6/af_inet6.c
index 94b1b9c..e830cd4 100644
--- a/net/ipv6/af_inet6.c
+++ b/net/ipv6/af_inet6.c
@@ -971,19 +971,24 @@ static void ipv6_packet_cleanup(void)
static int __net_init ipv6_init_mibs(struct net *net)
{
if (snmp_mib_init((void __percpu **)net->mib.udp_stats_in6,
- sizeof (struct udp_mib)) < 0)
+ sizeof(struct udp_mib),
+ __alignof__(struct udp_mib)) < 0)
return -ENOMEM;
if (snmp_mib_init((void __percpu **)net->mib.udplite_stats_in6,
- sizeof (struct udp_mib)) < 0)
+ sizeof(struct udp_mib),
+ __alignof__(struct udp_mib)) < 0)
goto err_udplite_mib;
if (snmp_mib_init((void __percpu **)net->mib.ipv6_statistics,
- sizeof(struct ipstats_mib)) < 0)
+ sizeof(struct ipstats_mib),
+ __alignof__(struct ipstats_mib)) < 0)
goto err_ip_mib;
if (snmp_mib_init((void __percpu **)net->mib.icmpv6_statistics,
- sizeof(struct icmpv6_mib)) < 0)
+ sizeof(struct icmpv6_mib),
+ __alignof__(struct icmpv6_mib)) < 0)
goto err_icmp_mib;
if (snmp_mib_init((void __percpu **)net->mib.icmpv6msg_statistics,
- sizeof(struct icmpv6msg_mib)) < 0)
+ sizeof(struct icmpv6msg_mib),
+ __alignof__(struct icmpv6msg_mib)) < 0)
goto err_icmpmsg_mib;
return 0;
diff --git a/net/sctp/protocol.c b/net/sctp/protocol.c
index a0e1a7f..c0e162a 100644
--- a/net/sctp/protocol.c
+++ b/net/sctp/protocol.c
@@ -1002,7 +1002,8 @@ int sctp_register_pf(struct sctp_pf *pf, sa_family_t family)
static inline int init_sctp_mibs(void)
{
return snmp_mib_init((void __percpu **)sctp_statistics,
- sizeof(struct sctp_mib));
+ sizeof(struct sctp_mib),
+ __alignof__(struct sctp_mib));
}
static inline void cleanup_sctp_mibs(void)
diff --git a/net/xfrm/xfrm_policy.c b/net/xfrm/xfrm_policy.c
index 4bf27d9..593c06b 100644
--- a/net/xfrm/xfrm_policy.c
+++ b/net/xfrm/xfrm_policy.c
@@ -2480,7 +2480,8 @@ static int __net_init xfrm_statistics_init(struct net *net)
int rv;
if (snmp_mib_init((void __percpu **)net->mib.xfrm_statistics,
- sizeof(struct linux_xfrm_mib)) < 0)
+ sizeof(struct linux_xfrm_mib),
+ __alignof__(struct linux_xfrm_mib)) < 0)
return -ENOMEM;
rv = xfrm_proc_init(net);
if (rv < 0)
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