[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/core/flow.c b/net/core/flow.c
index 885a2f6..2191af5 100644
--- a/net/core/flow.c
+++ b/net/core/flow.c
@@ -79,7 +79,7 @@
{
int i;
- for_each_cpu(i)
+ for_each_possible_cpu(i)
flow_hash_rnd_recalc(i) = 1;
flow_hash_rnd_timer.expires = jiffies + FLOW_HASH_RND_PERIOD;
@@ -361,7 +361,7 @@
flow_hash_rnd_timer.expires = jiffies + FLOW_HASH_RND_PERIOD;
add_timer(&flow_hash_rnd_timer);
- for_each_cpu(i)
+ for_each_possible_cpu(i)
flow_cache_cpu_prepare(i);
hotcpu_notifier(flow_cache_cpu, 0);
