lk/linux-kernel-test
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

[IPV4]: Consolidate common SNMP code

Browse Source 
This patch moves the SNMP code shared between IPv4/IPv6 from proc.c
into net/ipv4/af_inet.c.  This makes sense because these functions
aren't specific to /proc.

As a result we can again skip proc.o if /proc is disabled.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Acked-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Herbert Xu
2007-04-24 21:53:35 -07:00
committed by David S. Miller
parent bb7ec6dfb5
commit 5e0f04351d
4 changed files with 57 additions and 56 deletions
Download Patch File Download Diff File Expand all files Collapse all files

68
net/ipv4/proc.c
View File

@@ -45,7 +45,6 @@
#include <net/sock.h>
#include <net/raw.h>
#ifdef CONFIG_PROC_FS
static int fold_prot_inuse(struct proto *proto)
{
int res = 0;
@@ -88,19 +87,6 @@ static const struct file_operations sockstat_seq_fops = {
.release = single_release,
};
static unsigned long
fold_field(void *mib[], int offt)
{
unsigned long res = 0;
int i;
for_each_possible_cpu(i) {
res += *(((unsigned long *) per_cpu_ptr(mib[0], i)) + offt);
res += *(((unsigned long *) per_cpu_ptr(mib[1], i)) + offt);
}
return res;
}
/* snmp items */
static const struct snmp_mib snmp4_ipstats_list[] = {
SNMP_MIB_ITEM("InReceives", IPSTATS_MIB_INRECEIVES),
@@ -267,8 +253,8 @@ static int snmp_seq_show(struct seq_file *seq, void *v)
for (i = 0; snmp4_ipstats_list[i].name != NULL; i++)
seq_printf(seq, " %lu",
fold_field((void **) ip_statistics,
snmp4_ipstats_list[i].entry));
snmp_fold_field((void **)ip_statistics,
snmp4_ipstats_list[i].entry));
seq_puts(seq, "\nIcmp:");
for (i = 0; snmp4_icmp_list[i].name != NULL; i++)
@@ -277,8 +263,8 @@ static int snmp_seq_show(struct seq_file *seq, void *v)
seq_puts(seq, "\nIcmp:");
for (i = 0; snmp4_icmp_list[i].name != NULL; i++)
seq_printf(seq, " %lu",
fold_field((void **) icmp_statistics,
snmp4_icmp_list[i].entry));
snmp_fold_field((void **)icmp_statistics,
snmp4_icmp_list[i].entry));
seq_puts(seq, "\nTcp:");
for (i = 0; snmp4_tcp_list[i].name != NULL; i++)
@@ -289,12 +275,12 @@ static int snmp_seq_show(struct seq_file *seq, void *v)
/* MaxConn field is signed, RFC 2012 */
if (snmp4_tcp_list[i].entry == TCP_MIB_MAXCONN)
seq_printf(seq, " %ld",
fold_field((void **) tcp_statistics,
snmp4_tcp_list[i].entry));
snmp_fold_field((void **)tcp_statistics,
snmp4_tcp_list[i].entry));
else
seq_printf(seq, " %lu",
fold_field((void **) tcp_statistics,
snmp4_tcp_list[i].entry));
snmp_fold_field((void **)tcp_statistics,
snmp4_tcp_list[i].entry));
}
seq_puts(seq, "\nUdp:");
@@ -304,8 +290,8 @@ static int snmp_seq_show(struct seq_file *seq, void *v)
seq_puts(seq, "\nUdp:");
for (i = 0; snmp4_udp_list[i].name != NULL; i++)
seq_printf(seq, " %lu",
fold_field((void **) udp_statistics,
snmp4_udp_list[i].entry));
snmp_fold_field((void **)udp_statistics,
snmp4_udp_list[i].entry));
/* the UDP and UDP-Lite MIBs are the same */
seq_puts(seq, "\nUdpLite:");
@@ -315,8 +301,8 @@ static int snmp_seq_show(struct seq_file *seq, void *v)
seq_puts(seq, "\nUdpLite:");
for (i = 0; snmp4_udp_list[i].name != NULL; i++)
seq_printf(seq, " %lu",
fold_field((void **) udplite_statistics,
snmp4_udp_list[i].entry) );
snmp_fold_field((void **)udplite_statistics,
snmp4_udp_list[i].entry));
seq_putc(seq, '\n');
return 0;
@@ -349,8 +335,8 @@ static int netstat_seq_show(struct seq_file *seq, void *v)
seq_puts(seq, "\nTcpExt:");
for (i = 0; snmp4_net_list[i].name != NULL; i++)
seq_printf(seq, " %lu",
fold_field((void **) net_statistics,
snmp4_net_list[i].entry));
snmp_fold_field((void **)net_statistics,
snmp4_net_list[i].entry));
seq_putc(seq, '\n');
return 0;
@@ -391,30 +377,4 @@ out_netstat:
rc = -ENOMEM;
goto out;
}
#endif
int snmp_mib_init(void *ptr[2], size_t mibsize, size_t mibalign)
{
BUG_ON(ptr == NULL);
ptr[0] = __alloc_percpu(mibsize);
if (!ptr[0])
goto err0;
ptr[1] = __alloc_percpu(mibsize);
if (!ptr[1])
goto err1;
return 0;
err1:
free_percpu(ptr[0]);
ptr[0] = NULL;
err0:
return -ENOMEM;
}
void snmp_mib_free(void *ptr[2])
{
BUG_ON(ptr == NULL);
free_percpu(ptr[0]);
free_percpu(ptr[1]);
ptr[0] = ptr[1] = NULL;
}