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authorJohn Hawkes <hawkes@sgi.com>2005-10-13 09:30:31 -0700
committerArnaldo Carvalho de Melo <acme@mandriva.com>2005-10-25 23:54:01 -0200
commit670c02c2bfd2c8a305a90f5285409a7b0a8fd630 (patch)
treea6e7d773d72e2716bf675dbb2679e8ada21b4e21 /net/ipv4
parent900e0143a575406146ac531fcb91790f166ce52f (diff)
downloadlinux-670c02c2bfd2c8a305a90f5285409a7b0a8fd630.tar.bz2
[NET]: Wider use of for_each_*cpu()
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>
Diffstat (limited to 'net/ipv4')
-rw-r--r--net/ipv4/icmp.c5
-rw-r--r--net/ipv4/proc.c4
2 files changed, 2 insertions, 7 deletions
diff --git a/net/ipv4/icmp.c b/net/ipv4/icmp.c
index 90dca711ac9f..175e093ec564 100644
--- a/net/ipv4/icmp.c
+++ b/net/ipv4/icmp.c
@@ -1108,12 +1108,9 @@ void __init icmp_init(struct net_proto_family *ops)
struct inet_sock *inet;
int i;
- for (i = 0; i < NR_CPUS; i++) {
+ for_each_cpu(i) {
int err;
- if (!cpu_possible(i))
- continue;
-
err = sock_create_kern(PF_INET, SOCK_RAW, IPPROTO_ICMP,
&per_cpu(__icmp_socket, i));
diff --git a/net/ipv4/proc.c b/net/ipv4/proc.c
index f7943ba1f43c..a65e508fbd40 100644
--- a/net/ipv4/proc.c
+++ b/net/ipv4/proc.c
@@ -90,9 +90,7 @@ 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);
}