[PATCH] for_each_possible_cpu: network codes

for_each_cpu() actually iterates across all possible CPUs.  We've had mistakes
in the past where people were using for_each_cpu() where they should have been
iterating across only online or present CPUs.  This is inefficient and
possibly buggy.

We're renaming for_each_cpu() to for_each_possible_cpu() to avoid this in the
future.

This patch replaces for_each_cpu with for_each_possible_cpu under /net

Signed-off-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Acked-by: "David S. Miller" <davem@davemloft.net>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
diff --git a/net/ipv4/icmp.c b/net/ipv4/icmp.c
index 9831fd2..2a04559 100644
--- a/net/ipv4/icmp.c
+++ b/net/ipv4/icmp.c
@@ -1107,7 +1107,7 @@
 	struct inet_sock *inet;
 	int i;
 
-	for_each_cpu(i) {
+	for_each_possible_cpu(i) {
 		int err;
 
 		err = sock_create_kern(PF_INET, SOCK_RAW, IPPROTO_ICMP,