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[IPV4] ROUTE: Collect proc-related functions together 

The net/ipv4/route.c file declares some entries for proc
to dump some routing info. The reading functions are
scattered over this file - collect them together.

Besides, remove a useless IP_RT_ACCT_CPU macro.

Signed-off-by: Pavel Emelyanov <xemul@openvz.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Pavel Emelyanov 2007-12-05 21:13:48 -08:00 committed by David S. Miller
parent f4d900a2ca
commit 78c686e9fa
1 changed files with 39 additions and 42 deletions
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81
net/ipv4/route.c
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@ -481,6 +481,45 @@ static const struct file_operations rt_cpu_seq_fops = {
.release = seq_release,
};
#ifdef CONFIG_NET_CLS_ROUTE
static int ip_rt_acct_read(char *buffer, char **start, off_t offset,
int length, int *eof, void *data)
{
unsigned int i;
if ((offset & 3) || (length & 3))
return -EIO;
if (offset >= sizeof(struct ip_rt_acct) * 256) {
*eof = 1;
return 0;
}
if (offset + length >= sizeof(struct ip_rt_acct) * 256) {
length = sizeof(struct ip_rt_acct) * 256 - offset;
*eof = 1;
}
offset /= sizeof(u32);
if (length > 0) {
u32 *dst = (u32 *) buffer;
*start = buffer;
memset(dst, 0, length);
for_each_possible_cpu(i) {
unsigned int j;
u32 *src;
src = ((u32 *) per_cpu_ptr(ip_rt_acct, i)) + offset;
for (j = 0; j < length/4; j++)
dst[j] += src[j];
}
}
return length;
}
#endif
#endif /* CONFIG_PROC_FS */
static __inline__ void rt_free(struct rtable *rt)
@ -2898,48 +2937,6 @@ ctl_table ipv4_route_table[] = {
#ifdef CONFIG_NET_CLS_ROUTE
struct ip_rt_acct *ip_rt_acct __read_mostly;
/* IP route accounting ptr for this logical cpu number. */
#define IP_RT_ACCT_CPU(cpu) (per_cpu_ptr(ip_rt_acct, cpu))
#ifdef CONFIG_PROC_FS
static int ip_rt_acct_read(char *buffer, char **start, off_t offset,
int length, int *eof, void *data)
{
unsigned int i;
if ((offset & 3) || (length & 3))
return -EIO;
if (offset >= sizeof(struct ip_rt_acct) * 256) {
*eof = 1;
return 0;
}
if (offset + length >= sizeof(struct ip_rt_acct) * 256) {
length = sizeof(struct ip_rt_acct) * 256 - offset;
*eof = 1;
}
offset /= sizeof(u32);
if (length > 0) {
u32 *dst = (u32 *) buffer;
*start = buffer;
memset(dst, 0, length);
for_each_possible_cpu(i) {
unsigned int j;
u32 *src = ((u32 *) IP_RT_ACCT_CPU(i)) + offset;
for (j = 0; j < length/4; j++)
dst[j] += src[j];
}
}
return length;
}
#endif /* CONFIG_PROC_FS */
#endif /* CONFIG_NET_CLS_ROUTE */
static __initdata unsigned long rhash_entries;