[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>

1 files changed, 2 insertions, 2 deletions

diff --git a/net/core/flow.c b/net/core/flow.c
index 885a2f655db0..2191af5f26ac 100644
--- a/net/core/flow.c
+++ b/net/core/flow.c
@@ -79,7 +79,7 @@ static void flow_cache_new_hashrnd(unsigned long arg)
 {
         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 @@ static int __init flow_cache_init(void)
         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);