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[NET]: Wider use of for_each_*cpu()

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In 'net' change the explicit use of for-loops and NR_CPUS into the
general for_each_cpu() or for_each_online_cpu() constructs, as
appropriate.  This widens the scope of potential future optimizations
of the general constructs, as well as takes advantage of the existing
optimizations of first_cpu() and next_cpu(), which is advantageous
when the true CPU count is much smaller than NR_CPUS.

Signed-off-by: John Hawkes <hawkes@sgi.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com>
This commit is contained in:
John Hawkes
2005-10-13 09:30:31 -07:00
committed by Arnaldo Carvalho de Melo
parent 900e0143a5
commit 670c02c2bf
7 changed files with 8 additions and 28 deletions
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9
net/ipv6/icmp.c
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@@ -700,10 +700,7 @@ int __init icmpv6_init(struct net_proto_family *ops)
struct sock *sk;
int err, i, j;
for (i = 0; i < NR_CPUS; i++) {
if (!cpu_possible(i))
continue;
for_each_cpu(i) {
err = sock_create_kern(PF_INET6, SOCK_RAW, IPPROTO_ICMPV6,
&per_cpu(__icmpv6_socket, i));
if (err < 0) {
@@ -749,9 +746,7 @@ void icmpv6_cleanup(void)
{
int i;
for (i = 0; i < NR_CPUS; i++) {
if (!cpu_possible(i))
continue;
for_each_cpu(i) {
sock_release(per_cpu(__icmpv6_socket, i));
}
inet6_del_protocol(&icmpv6_protocol, IPPROTO_ICMPV6);

4
net/ipv6/proc.c
View File

@@ -140,9 +140,7 @@ fold_field(void *mib[], int offt)
unsigned long res = 0;
int i;
for (i = 0; i < NR_CPUS; i++) {
if (!cpu_possible(i))
continue;
for_each_cpu(i) {
res += *(((unsigned long *)per_cpu_ptr(mib[0], i)) + offt);
res += *(((unsigned long *)per_cpu_ptr(mib[1], i)) + offt);
}